Born at Cornwall, Connecticut, younger brother of Ethan Allen. Ira and other landowners formed the convention that declared Vermont's independence in 1777. He served with his brother as one of the Green Mountain Boys. Married Jerusha Enos about 1789. They had three children. Allen donated land for the University of Vermont in 1789. He died in poverty in Philadelphia.
Allen served on the committee that evaluated a proposal by Reuben Harmon for coinage of Vermont coppers.
Allen appears on the obverse of the Vermont Sesquicentennial Half Dollar. Design was by Charles Keck. Originally 40,000 were struck but only 28,108 were issued. The remaining 11,892 were melted.
bio: ApCAB; DAB; Drake; NCAB 4; TCBDA; WWWA-H; profile CW 12/18/2000Source credit: Pete Smith, American Numismatic Biographies