Just information I found in this book.I don’t know if he is any relation or not.This is all I have.
Title: The Allegheny river Author: Kussart, S. (Sarepta), b. 1871
Pg. 189 …The Samuel Snowden, of 134 burden, enrolled at the Pittsburgh Custom House, March 23, 1853, was owned by her commander, CAPTAIN W. P. TORRENCE, Albert Culbertson, Samuel Snowden, Lee A. Beckman, William Lyons, and E. B. Barton.This steamer left Pittsburgh for Franklin, March 26, 1853.She ran but this one season on the Allegheny and that not regularly.
Pg. 196 …The Sharpsburg Bridge across the Allegheny River was built and opened for use in 1856.The old St. Clair (or Sixth) Street Bridge at Pittsburgh was closed to the public, April 1, 1859, preparatory to erecting a new bridge here.Captain William Lee opened a ferry to carry people across the river, and it was so well patronized that CAPTAIN WILLIAM TORRENCE purchased a ferry boat at Marietta, Ohio, and used it for the same purpose….