During the years 1783 to 1786, Colonel McAllister was a member of the Supreme Executive Council, and also served as a member of the Council of Censors. In the latter position he was engaged in the disposition of the confiscated estates of Pennsylvania Tories.
Like such a great number of the soldiers of the Revolution, Colonel McAllister also took a deep interest in legal affairs. He served as a justice of the peace, and then as justice of the court of common pleas in March, 1771.
He was a member of the First Constitutional Convention, in 1776, and on February 17, 1784, he became the presiding justice of the York County Courts.
When General Washington passed through Hanover, June 30, 1791, on his way to Philadelphia, he spent several hours the guest of Colonel McAllister.
He died at his home in Hanover, October 7, 1795.
His remains were first buried in the graveyard belonging to Emanuel’s Reformed Church of Hanover, of which he was a member and one of the leading supporters.
About 1870 the remains of this distinguished patriot were removed to Mount Olivet Cemetery, in the suburbs of Hanover, where they now repose.
On every succeeding Memorial Day commemoration services are held at the tomb of this hero and patriot, by the veterans of the Grand Army of the Republic and allied organizations.
Colonel McAllister had eleven children. His eldest son, Abdiel, commanded a company in Arnold’s expedition to Quebec; another son, Archibald, commanded a company in the battles of Germantown and Monmouth.
A younger son, Matthew, became first United States district attorney of Georgia, judge of the Superior Court of that State, and was Mayor of Savannah during War of 1812.