According to the Genealogical Record of the Barnum Family, Zebulon was a private in Captain J. P. Foreman's company during the Colonial Campaigns; he enlisted 23 Apr 1758, at the age of 25 years. From the Muster Roll of New York Provincial Troops, 1755-1765, p. 100: Zebulon Barnum, age 20, of Connecticut, labourer, enlisted 23 Apr 1758 under Capt. Jho Formans.
Documents apparently related to the estate of Zebulon were among the papers of Ezekiel Hawley, a witness to the documents, passed down through his family. The papers are from the collection of Ezekiel Hawley, born in Stratford, Connecticut in 1731. He was the son of Joseph and Hannah (Walker) Hawley. He lived in North Salem and died there in 1788. One of the documents is a 1762 agreement between Abner Barnum and James Tongue and his wife Rachel, agreeing that Abner should have the care of Zebulon's two "orfing" sons (perhaps nine-year-old Abel and a brother) and two-thirds of the estate; and the Tongues the care of his daughter and one-third of the estate. The second document is an inventory of Zebulon's estate, which included "an note upon interest against Thomas" of 13 pounds, 10 shillings, a note against Ebenezer Bowton of one pound and "cash that Abner Barnum had" one pound, 14 shillings. The total estate amounted to about 36 pounds, 17 shillings, 8 pence. Where or if the estate was probated is not known.
Abner Barnum married (1st) Rachel Wakeley in 1732, according to Noah G. Barnum. The date of their marriage and the above documents suggest that they may be Zebulon's parents, and Rachel Tongue may be Zebulon's sister.
Stratford was formerly known as Cupheag Plantation and prior to that Pequonnocke.