William Wallace Irwin (1803September 15, 1856) was Mayor of Pittsburgh and a Whig member of the U.S. House of Representatives from Pennsylvania.
Early life
William Irwin was born in Pittsburgh in 1803, and as a boy earned the lifelong nickname "pony Irwin" because of his habit of riding a pony everywhere he went. He graduated from the Western University of Pennsylvania, now known as the University of Pittsburgh, in 1824. He was also a graduate of Allegheny College. He became a member of the Allegheny County bar on May 6, 1828, and by 1835 was serving as the president of the Western University's alumni association. He ran successfully for Allegheny County District Attorney in 1838.
Marriage and family
Irwins first wife was Frances Everallyn Rose Irwin (April 1809–February 24, 1836), the niece of Illinois Supreme Court justice Theophilus W. Smith and aunt of bridge engineer Charles Shaler Smith. They were the parents of United States Navy Rear Admiral John Irwin (1832-1901).
