William A Siffermann from Western Springs, IL

Age 74
๐Ÿ“ 4116 Gilbert Ave, Western Springs, IL 60558
๐Ÿ“ž (312) 505-2589, (312) 560-2468, (708) 505-4214, (312) 560-1050
โœ‰๏ธ wsiffermann@msn.com

William Siffermann from Western Springs, IL

Age 77 b. Jun 1948
๐Ÿ“ 3901 Harvey Ave
๐Ÿ“ž (708) 246-8429
๐Ÿ‘ค aka Will Phillip Siffermann, William A Siffermann

William Siffermann from Chicago, IL

Male
๐Ÿ“ 330 N Clinton St
๐Ÿ“ž (312) 560-1050 (AT&T MOBILITY)

William Siffermann from Western Springs, IL

Age 78 b. 1948 Male
๐Ÿ“ 4116 Gilbert Ave
๐Ÿ“ž (312) 505-2589

William Siffermann from Chicago, IL

Age 50 b. Nov 1975 Cook Co.
๐Ÿ“ 3046 N Leavitt St Unit 2

William Siffermann from Winter Haven, FL

Polk Co.
๐Ÿ“ 5248 Spirit Lake Rd
๐Ÿ“ž (863) 298-8247

William Siffermann from Chicago, IL

๐Ÿ“ 330 N Clinton St 408
๐Ÿ“ž (312) 246-8429

Source: Public Records Aggregators ยท Commercial Data Providers ยท Consumer Data Sources Our search returned 7 contact records for William Siffermann across 2 states. The most recent address on file is in Western Springs, Illinois. Of these records, 6 include phone numbers and 1 include email addresses. The listed age is 74. Records are compiled from government agencies and commercial data sources. Data accuracy varies by source.

2012 GMC ACADIA
ยท Registered to: William Siffermann
ยท VIN: 1GKKRRED5CJ182618
·
4116 Gilbert Ave, Western Springs, IL, 60558-1236
·
(708) 505-4214
2016 Mazda Cx-5
ยท Registered to: William Siffermann
ยท VIN: JM3KE4DY7G0844751
·
4116 Gilbert Ave, Western Sprgs, IL, 60558
·
(312) 560-2468

Source: State DMV Records ยท DPPA-Compliant Data Providers ยท Vehicle Registration Databases 2 vehicle registration records are associated with William Siffermann. Registered makes include Gmc, Mazda. The most recent model year on record is 2016. Vehicle data is obtained through DPPA-compliant providers and is regulated under the federal Driver's Privacy Protection Act.

William Siffermann

San Francisco, California, United States Law Enforcement

San Francisco Juvenile Div

William SiffermannBranch Manager
(415) 771-3352wsiffermann@sfgov.org
San Francisco, CA

William Siffermann

Vice President
Chicago, IL

Source: State Secretary of State ยท SEC EDGAR ยท LinkedIn Professional Data ยท Business Registries 5 business affiliations were found for William Siffermann. Companies include San Francisco Juvenile Div. Roles listed include Vice President. Records are compiled from state business registries, SEC filings, and professional networking databases.

$25 Sep 22, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Oct 18, 2019
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Nov 15, 2019
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$100 Nov 21, 2009
2010
Chu, Carmen
Siffermann, William P Probation Officer @ City And County Of San Francisco San Francisco, CA
$25 Jun 1, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$500 Aug 31, 2011
2012
Lee, Edwin
Siffermann, William Probation Officer @ City And County Of San Francisco San Francisco, CA
$100 Jun 20, 2007
2008
Hennessey, Michael
Siffermann, William Chief Juvenile Probation Officer @ City And County Of San Francisco San Francisco, CA
$25 Aug 25, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Nov 17, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$100 Sep 29, 2011
2012
Cunnie, Chris
Siffermann, William P Chief Probation Officer @ Sf Juvenile Probation Dept San Francisco, CA
$25 Nov 16, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Jun 15, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$100 Feb 28, 2008
2008
Elsbernd, Sean R
Siffermann, William P Chief Probation Officer @ Ccsf San Francisco, CA
$25 Nov 15, 2019
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Sep 7, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 May 18, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Dec 15, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$100 Apr 7, 2015
2016
Peskin, Aaron
Siffermann, William Western Springs, IL
$25 Oct 5, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Aug 7, 2020
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Jul 28, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Oct 20, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Sep 8, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Oct 19, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Oct 6, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Nov 30, 2018
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$200 Sep 26, 2011
2012
Gascon, George
Siffermann, William P Chief Probation Officer @ Ccsf San Francisco, CA
$100 Oct 7, 2010
2010 DEM
Newsom, Gavin
Siffermann, William Probation Officer @ Citycounty Of San Francisco San Francisco, CA
$200 Jul 23, 2010
2010
Actblue
Siffermann, William Probation Officer @ Ccsf San Francisco, CA
$25 Nov 1, 2019
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Jun 29, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$100 Jul 1, 2015
2016
Hennessy, Vicki
Siffermann, William Western Springs, IL
$100 Oct 7, 2010
2010
Actblue
Siffermann, William Probation Officer @ City County Of San Francisco San Francisco, CA
$25 Aug 11, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$100 Jun 13, 2013
2014
Chu, Carmen
Siffermann, William Western Springs, IL
$25 Aug 21, 2020
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Oct 4, 2019
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Dec 14, 2018
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Dec 29, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Nov 3, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Jul 14, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 Nov 27, 2020
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Sep 21, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Sep 20, 2019
2020
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$25 Dec 1, 2017
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Fund Board Relations Ex 01596n @ Nuveen Investments New York, NY
$25 May 4, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$200 Jul 23, 2010
2010 DEM
Newsom, Gavin
Siffermann, William Probation Officer @ City & County Of San Francisco San Francisco, CA
$25 Nov 2, 2018
2018
Teachers Insurance Annuity Association Of America Pac (tiaa Pac)
Siffermann, William A Md Fund Board Relations Ex 01596n @ Nuveen Chicago, IL
$100 Nov 21, 2009
Chu, Carmen
Contributor Probation Officer @ City And County Of San Francisco San Francisco, CA
$25 Dec 24, 2020
Unknown Committee
Siffermann, William A Md Fund Board Relations-Ex-01596n @ Nuveen Chicago, IL
$100
2010 D
Newsom, Gavin
Contributor Probation Officer @ City/County Of San Francisco San Francisco, CA

Source: FEC Disclosure Database ยท State Ethics Commissions ยท Stanford DIME Project 51 political contribution records found for William Siffermann. Total disclosed contributions amount to $3,100. Recipients include Chu, Carmen, Newsom, Gavin. Federal law requires disclosure of contributions above $200 to federal candidates.

MP

William P Siffermann

Age 69 Male
·
3901 Harvey Ave, Western Sprgs, IL 60558 (Cook County)
41.8190, -87.8905
· (708) 846-0685
Marital: Married TZ: Central
Occ: Professional Edu: Some College
Homeowner Single Family Built 1954 Purchased 1986
MP

William A Siffermann

Age 69 Male
·
4116 Gilbert Ave, Western Sprgs, IL 60558 (Cook County)
41.8153, -87.8894
· (312) 505-2589
Marital: Married TZ: Central
Occ: Professional Edu: Some College
Homeowner Single Family Built 1941 Purchased 1983
MP

William G Siffermann

Age 91 Male
·
1891 Rehm Ct, Lisle, IL 60532 (Dupage County)
41.7715, -88.0878
Marital: Married TZ: Central
Occ: White Collar Edu: Some College
Single Family

Source: Consumer Marketing Databases ยท Commercial Data Aggregators Marketing databases contain 3 demographic profiles associated with William Siffermann. This data is compiled from commercial aggregators and may include estimated income ranges, lifestyle indicators, and household characteristics. Accuracy is not guaranteed.

Note: PPP loans shown are for businesses with addresses associated with William Siffermann. These loans were issued to businesses, not individuals.

28 Bones Medical, INC.

Corporation

$59,215 Exemption 4
Address:
330 N Clinton St Unit 607
Chicago, IL60661
Approved

May 1, 2020

Jobs Reported

3

Loan #

1206447803

Loan Size

Small

Marsdiv Solutions CORP.

Corporation

$18,336 Paid in Full
Address:
330 N Clinton St Apt 603
Chicago, IL60661-1237
Approved

May 1, 2020

Forgiven

$16,512

Jobs Reported

1

Loan #

6330187710

Loan Size

Small

John T Houston DBA John Houston Pediatric Urology

Sole Proprietorship

$40,000 Paid in Full
Address:
330 N Clinton St Apt 304
Chicago, IL60661
Approved

May 1, 2020

Forgiven

$40,523

Jobs Reported

8

Loan #

1476007702

Loan Size

Small

McCauley Olive Groves LLC

Limited Liability Company(LLC

$8,700 Paid in Full
Address:
380 Country Club Dr Ste G
Brentwood, CA94513-4235
Approved

Apr 16, 2020

Forgiven

$8,747

Jobs Reported

3

Loan #

2312827209

Loan Size

Small

Source: SBA PPP Loan Data ยท CARES Act Public Disclosures 4 PPP loan records are linked to businesses associated with William Siffermann. These Paycheck Protection Program loans were part of the 2020-2021 CARES Act pandemic relief and were released by the SBA under FOIA.

Find William Siffermann on the map

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1
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William Siffermann in Western Springs, IL: Background Summary

Location
4116 Gilbert Ave, Western Springs, IL 60558, Western Springs, IL 60558
Other Locations
Western Springs, IL ยท Chicago, IL ยท Winter Haven, FL
Profiles Found
7 people with this name
Phone Numbers
(312) 505-2589 and 6 others on file
Email
wsiffermann@msn.com
Career
Vice President at San Francisco Juvenile Div
Vehicles
2 linked โ€” 2012 Gmc Acadia, 2016 Mazda Cx-5
Contributions
$3,100 total โ€” Chu, Carmen, Newsom, Gavin
PPP Loans
$126K for 28 Bones Medical, INC., Marsdiv Solutions CORP.

This information is compiled from publicly available records and may include data for multiple individuals with similar names. Data may contain inaccuracies or be incomplete. This information should not be used for employment screening, tenant screening, credit decisions, or any purpose covered by the Fair Credit Reporting Act (FCRA). Always verify information independently before making any decisions.

How to Read This Report

This page aggregates publicly available records from government agencies, court systems, and official registries into a single report for William Siffermann. Because public records are indexed by name rather than by a unique identifier, the 73 results displayed here may include information belonging to multiple individuals who share the same name โ€” a common occurrence, especially for frequently appearing names. To determine which records belong to the person you are researching, compare the location, approximate age, and any associated details across entries. Records that share an address or overlapping timeframe are more likely to refer to the same individual.

What Each Data Category Means

Business and Professional Records

Business records are compiled from state Secretary of State filings, SEC EDGAR corporate disclosures, and professional networking data. When a person appears as an officer, director, or registered agent, it reflects a formal role filed with a government agency โ€” these are legal positions of responsibility, not informal job titles. Records sourced from professional profiles represent information that individuals have chosen to make publicly available about their career history, skills, and affiliations. Business entity registrations show current or historical standing with the state, but a listing does not guarantee the entity is still actively operating.

Campaign Finance Contributions

Federal election law requires the disclosure of political contributions exceeding $200 to any single committee in a calendar year. These records are filed with the Federal Election Commission (FEC) and include the donor's name, mailing address, employer, occupation, and the amount contributed. Contributions to state and local candidates are governed by each state's campaign finance laws, which may set different disclosure thresholds. The data shown here reflects what was reported in official filings and may include contributions made over the course of many election cycles, so the dates and amounts should be read in their historical context.

Vehicle Records

Vehicle ownership records are obtained through sources that comply with the Driver's Privacy Protection Act (DPPA), the federal law that governs who may access motor vehicle records and for what purposes. The records shown indicate vehicles that have been registered to this individual through state DMV systems. Vehicle data may include make, model, year, and VIN, and reflects registration information at the time the record was filed. Vehicles that have been sold, traded, or transferred may still appear until the registration is updated in the state's records.

Important Limitations

Public records may contain outdated information, data entry errors, or records that belong to a different person who shares the same name as the individual you are researching. Government agencies update their records on varying schedules, and the data shown here may not reflect the most recent changes. Information on this page is provided for informational purposes only and should not be used for employment screening, tenant screening, credit decisions, or any other purpose regulated by the Fair Credit Reporting Act (FCRA). Always verify critical details through the originating government agency or official registry.

Your Rights

If you are the person described in these records, you have rights regarding your personal data. Under laws including the California Consumer Privacy Act (CCPA) and similar state privacy statutes, you may request the deletion or correction of your personal information. To submit a removal request, visit our opt-out page. For a complete description of how we collect, use, and protect personal data, please review our privacy policy.

Search Results Analysis for William Siffermann

Search Complexity: Moderate

73 public records across 3states, belonging to approximately 7 different individuals. There are 7 distinct profiles in the results. Using the state filter or checking age and address details will help identify the correct individual.

For this search, the Political Contribution Records section may be most helpful for disambiguation because these records include employer and occupation, which are strong distinguishing fields.

Geographic Distribution

Records are moderately distributed across 3 states. Highest concentration: Illinois (19%), followed by California and Florida. Spans the Midwest and West regions.

IL14recordsCA3recordsFL1record

Record Type Breakdown

Data spans 5 record categories. Largest: Political Contribution Records (73%), which include employer and occupation, which are strong distinguishing fields. Also includes Contact & Address Records (8) and Business & Corporate Filings (5).

51
Political Contribution Records
8
Contact & Address Records
5
Business & Corporate Filings
4
PPP Loan Records
2
Vehicle Registration Records

Age Distribution

Age range: approximately 27 years, suggesting multiple generations. Largest group: Senior (65+) (67%).

Senior (65+)2peopleMiddle-Age (40-64)1person

Use the age information shown on individual record cards to help identify the correct person.

Frequently Asked Questions About William Siffermann

What vehicles are registered to William Siffermann?
Records show 2 vehicle registrations associated with William Siffermann, including a 2012 GMC ACADIA. Registered makes include Gmc, Mazda. Vehicle registration data is obtained through DPPA-compliant providers and is regulated under the federal Driver's Privacy Protection Act.
What businesses are associated with William Siffermann?
We found 5 business affiliations for William Siffermann. Business records are compiled from state registries, SEC filings, and professional databases.
Has William Siffermann made political donations?
FEC disclosure records show 51 reported political contributions from William Siffermann, totaling $3,100. Recipients include Chu, Carmen and Newsom, Gavin. Federal law requires disclosure of individual contributions exceeding $200.
How many records exist for William Siffermann?
Our database contains 73 total records for William Siffermann spanning 3 states. This includes 7 distinct contact records, 6 with phone numbers, 1 with email addresses. Multiple records may represent different individuals sharing the same name. All data is compiled from publicly available government and commercial sources.
How accurate is the information shown for William Siffermann?
The 73 records displayed for William Siffermann are aggregated from government agencies, county offices, and official registries. While we source from authoritative databases, records can contain outdated information or belong to a different person with the same name. We recommend verifying important details through the original issuing agency before making decisions based on this data.
Can William Siffermann remove this information?
Yes, any individual has the right to request removal of their personal information. Submit a free removal request through our opt-out page. Under the CCPA and similar state privacy laws, you can request deletion of your data. Removal is completed within 48 hours. You do not need to create an account.
Can I use this data for background checks or screening?
No. OpenDataUSA is not a Consumer Reporting Agency under the FCRA. These records may not be used for employment screening, tenant evaluation, credit decisions, insurance underwriting, or any other FCRA-regulated purpose. For official background checks, use an FCRA-compliant service.