Abraham Mingo might have been one of the minor children enumerated in the Caesar Mingo household at Waquiot, during the June 24, 1776 census performed by Gideon Hawley. By at least 1785, Abraham Mingo married a woman named Jerusha, (sometimes referred to as Derusha) as this was the year their son William Mingo was born. It is possible that the Dinah Mingo who appeared as head of household in an 1808 census of the community, may have also been a child of Abraham and Jerusha.
The signature of Abraham Mingo is the first among 22 other signatories, on an October 1788 petition to the Massachusetts General Court in support of the three newly appointed guardians to the Mashpee, a direct result of the June 1788 Act passed to modify the government of Mashpee. Later that year he signed another petition on December 29. Similar to the earlier one, it was in support of the recently passed legislation, but asked that a full accounting be provided by past guardians and, given that two of the recent appointments were turned down, the petition offered the name of Dr. Samuel Savage as a possible replacement. By 1792 his sentiments had changed regarding the benefits of the June 1788 Act. He signed a petition, along with many others, asking that it be rescinded and that Rev. Gideon Hawley no longer preside in a position of authority over the Mashpee. Both Abraham and his wife Jerusha either signed or put their marks on additional petitions in 1795, after which point neither seem to appear in the documentary record.
1776 Census, Unbound Papers of Gideon Hawley, MHS, Boston, MA; Massachusetts, Town and Vital Records, 1620-1988, Vol. 1, Ancestry; Misc. Bound Docs. 1808, MHS, Boston, MA; Remonstrance of Mashpee Proprietors and Others to the Senate and House of Representatives of the Commonwealth of Massachusetts, 1788.10.31.00; Petition of the Mashpee Indians to the Massachusetts General Court; 1788.12.29.00; Petition of Elijah Pocknet and Other Mashpee Indians to the Legislature of the Commonwealth of Massachusetts; 1792.01.14.00; Petition of Noah Webquish and Other Mashpee Indians to the Legislature of the Commonwealth of Massachusetts; 1796.02.22.00