1866 Mary HumphreyBorn: 1866 probably in Tompkins Township, Delaware County, NY Died: Unknown Her father is unknown. Her mother is unknown. Her likely grandfather was 1813 Russell Humphrey. Her likely grandmother was 1819 Polly Ann Mills. In 1870, Mary was living in Tompkins Township, Delaware County, NY with: 1800 Alanson P. Sherman and 1819 Polly Ann Mills. The relationship between them is not known with certainty, but Polly Ann Mills may have been Mary's grandmother or aunt. Genealogy HOME Search Tool.