In the 1850 US Census for Potsdam, Saint Lawrence County, New York the family of Medad Barnum was enumerated as follows:
Dwelling #211; Family #232
Medad Barnum, 61, M, Farmer, Real property $1,300, b. Vermont
Mary Barnum, 57, F, b. Vermont
Charles Barnum, 18, M, Farmer, b. Vermont, Attended school within the year
Dwelling #211; Family #233
Bushrood [sic] Barnum, 23, M, Farmer, Real property $700, b. Vermont
Lucretia Barnum, 24, F, b. Canada West
Jane McShelory, 18, F, b. Ireland
In the 1870 US Census for Potsdam, Saint Lawrence, New York Medad Barnum was enumerated with the family of Martin Lester as follows:
Household #208; Family #201
Lester, Martin; 53; M; W; Farmer; Real property $3,800; Personal property $25,550; b. New York
Lester, Sarah; 53; F; W; Keeping House; b. Vermont
Lester, Charles; 17; M; W; Attending School; b. New York; Attended school within the year
Barnum, Medad; 81; M; W; At Home; b. Vermont
The Independent State of Vermont was constituted on 2 June 1777, and joined the Union as the 14th state on 4 March 1791.
'The Barnum Family, 1517-1904' gives the place of his death as Columbus, South Carolina.