That Nehemiah is the son of Henry (ca 1774-1852) and Abigail (ca 1789-aft 1853) Avery is supported by evidence but is not proven. See Note under father Henry Avery.

1840: (age ~28) res. Pound Ridge, Westchester Co., NY as Head of household with 1 male under 5 (probably Enoch H.), 1 male between10 & 14 (unk), 1 male between 20 & 29 (Nehemiah himself), 1 male between 60 & 69 (possibly his father, possibly named Henry), 1 female under 5 (probably Phila Ann), 1 female between 20&29 (probably wife Mary) and 1 female between 60 & 69 (possibly his mother, possibly named Abigail) 1940 1317

16 Sep 1850: (age ~38) res. Pound Ridge, Westchester Co., NY as Head of Household (Farmer, age 38) with wife Mary A (age 34), dau Phila Ann (age 15), son John Q (age 14), son Enoch H. (age 10), son David (age 9), dau Nancy (age 8), son Francis (age 3), son Stephen (age 6 mo). John, Enoch, David, and Nancy listed as attending school. NOTE - Also in same dwelling as Head of household “Haney Avery” (Farmer age 76, possibly his Father, Henry) and 1 female name “Alby Avery (age 61, possibly his mother Abigail) 1315

21 July 1860: (age ~48) name “Nemiah”, res Pound Ridge, Westchester Co., NY as Head of household (Shoe Maker, age 48) with wife Mary A (age 44), son Francis (age 13), son Stephen (age 11), dau “Arvills J” (age 4) 1316

13 Aug 1870: (age ~58) res Pound Ridge, Westchester Co., NY as Head of household (Shoe Maker, age 58) with wife (name “Mrs. N. Avery [Mrs. M. for Mary?]”, age 54), dau “Arville Jane” (age 14, attending school) 1209

18-22 June 1880: (age ~68) res. Pound Ridge, Westchester Co., NY as Head of household (Widowed - his wife Mary died in 1874, Farmer age 68), Son-in-law Denton A. Miller (married, Farm Laborer, Age 22), dau “Orvilla J.” (married, housekeeping, age 23) and grandson (son of Denton A. Miller and “Orvilla J”) Alex (age 4 mo) 1213