Source: Public Records Aggregators · Commercial Data Providers · Consumer Data Sources Our search returned 190 contact records for William Decker across 34 states. The most recent address on file is in North Beach, Maryland. Of these records, 137 include phone numbers and 78 include email addresses. Ages range from 40 to 103, which may indicate multiple individuals sharing this name. Records are compiled from government agencies and commercial data sources. Data accuracy varies by source.