Mary Barnum's will was dated in 1837 and she died that year in Gerry, Chautauqua, New York. Thus, she was alive in 1830. In the 1830 US Census for Gerry, there was enumerated a Margaret Barnham (transcribed as "Brnham") as a head of household. She was listed as of 60 and under 70. This may well be Mary, the widow of Noah. Her birth date, according to the census, would have been between 1761 and 1770. There is one female listed with her of 10 and under 15. That child is too young to be a daughter, but might either be one of her grandchildren (Phoebe Pickett, born abt 1818, would fit into that age group) or perhaps hired help. In the same census year there was a woman of 60 and under 70 enumerated in the household of Mary's son Eliacum Barnum, in Charlotte, Chautauqua County, (just one town away from Gerry). Since the enumerator couldn't be in both towns on the same day, Mary could easily have been enumerated twice, once at home and once visiting. This type of double enumeration is not uncommon in earlier censuses.
Mary Barnum of Gerry, Chautauqua County, New York, died 16 Jan 1837 in the town of Gerry. She had signed the will by making her mark on 15 Jan 1837; the will was recorded 27 Feb 1837, and probated 30 Mar 1837.
The will states: Bury me privately in the churchyard at Charlotte near John Picket. A note I hold against Stoddard Cannon of $160 to my son Joshua Barnum. $6 to son Exum [Eliakim? Azor?]. $1 each to Eleacum Barnum, son Noah Barnum, son Daniel Barnum, granddaughters Abagal Picket, Mary Picket, Phebe Picket, and Havilah Picket and grandsons David Picket and John Picket Jr. Everything else to daughter Hannah Strong, including $52 due from son Elicum Barnum which I let him have in a note against Joseph Arnold. Executor: Horrace Strong. Witnesses: Horrace Strong and William Copp, both of Gerry.
The grandchildren mentioned are children of her daughter Mary, who married John Pickett on 11 Feb 1811 and died around 1830. Mary, her daughter Mary and John Pickett are all buried in what is called the Old Picket Cemetery in Charlotte. No stones now exist for them, but old records state they are buried there.