Alexander J. Irwin

Alexander Johnson Irwin (March 1, 1799 – June 14, 1847) was an American pioneer, businessman, and territorial legislator.

Born in Greensburg, Pennsylvania on March 1, 1799, Irwin moved with his family to Detroit, Michigan Territory and then to Green Bay, Michigan Territory in 1823. Irwin and his brother Robert Irwin, Jr. were in the mercantile business in Green Bay. In 1827 he married Frances Pamelia Smith, with whom he had seven children. In 1836, he served in the Wisconsin Territorial House of Representatives and then in the Wisconsin Territorial Council. In 1845, he was appointed receiver of the Green Bay Land Office. The position required trips on horseback to Saint Louis, Missouri to deposit funds because there were no banks in Green Bay at the time. His extensive travel duties led to an infection in his arm, which resulted in his death. Irwin died in Green Bay in 1847 while still in office. Elisha Morrow was appointed receiver to fill the vacancy left by Irwin.