Source: Public Records Aggregators · Commercial Data Providers · Consumer Data Sources Our search returned 193 contact records for Mary Duncan across 34 states. The most recent address on file is in Childersburg, Alabama. Of these records, 144 include phone numbers and 74 include email addresses. Ages range from 46 to 110, which may indicate multiple individuals sharing this name. Records are compiled from government agencies and commercial data sources. Data accuracy varies by source.