According to The Barnum Family, by Noah G. Barnum, Abel, Zebulon and other siblings moved their families from Cayuga County, New York to Hartland, Niagara County in 1805. Then, in 1817, they went to Carlton in Genessee County (now Orleans County) New York. Finally, in about 1835 Abel and Zebulon went to Barry County, Michigan, where they died on adjoining farms. That history conflicts with information found on the death certificate of Jane Barry, daughter of Abel Barnum and Anna Peet, which indicates that she was born in 1814 in Genoa, Cayuga County, New York, and with the US Census of 1820, which shows Abel Barnum, Jr. residing in Cayuga County.
He is listed as Abel Barnum, Jr. in the 1810 Census and on his military records.
According to National Archives Records, Abel served in the War of 1812, in Captain John O'Hara's Company, 1st Regiment [Bloom's] New York Militia. He served from 11 Sep 1813 to 18 Dec 1813 at Fort George, Upper Canada.
On a patent dated 8 May 1837, Abel S. Barnum (son of Zebulon or, perhaps, of this Abel) of Orleans County, New York is shown as a bounty land claimant and the owner of 146.84 acres in Section 31 of Barry County, Michigan. Zebulon Barnum is shown as owning 160 acres in Section 25, with a patent date of 26 Jul 1836.
Johnson's History of Allegany and Barry Counties shows, "Among the early settlers in the Barnum neighborhood may also be reckoned . . . Abel, Philander, and Stephen Barnum . . ." apparently father and sons.
This Abel is shown in the census records of Barry County in 1810, 1820, 1830, 1840 and 1850.
In the 1850 US Census for Carlton, Barry, Michigan the family of Abel Barnum was enumerated as follows:
Household #755; Family #774
Barnum, Abel; 75; M; Farmer; real estate value $500; b. Con
Barnum, Hannah; 75; F; b. Con
That same census shows at least eight other Barnum families, representing several of his children and grandchildren, as well as some other families whose members intermarried with the Barnums.
Abel also appears in the membership entries for Venice Baptist Chruch. Venice Township is in Cayuga County, New York: Abel Barnum 1818, 1820; Hannah Barnum, Joined 1807. Anna Barnum May 11, 1823.
He was buried in Fuller Cemetery. The Barnum Family gives a death date of 29 Aug 1859.