In June 1781, Capt. Mott became a recruiting officer for Hunterdon County. John Mott became a Justice of the Peace for Hunterdon County, New Jersey again in June 1782. He married Eleanor Johnson Alexander, the widow of Continental Navy Captain Charles Alexander, on June 7, 1784. Mott and his wife had two sons, Gershom (born 1785) and William (born 1790). Gershom Mott married Phebe Rose Scudder, the granddaughter of guide Amos Scudder, and was the father of Union Civil War General Gershom Mott. John Mott and his wife, Eleanor, joined the Quakers in Trenton after the war, as did Gen. Philemon Dickinson and his wife. All four were buried in the Quaker burial ground in Trenton.