External Links

U.S. Navy Dictionary of Fighting Ships, R.B. Forbes.
http://www.history.navy.mil/danfs/r1/r_b_forbes.htm

NavSource Online: Battleship Photo Archive. USS Roanoke.
http://www.navsource.org/archives/01/roanoke.htm

USS Queen (1863) - Wikipedia
http://en.wikipedia.org/wiki/USS_Queen

USS Somerset (1862) – Wikipedia
http://en.wikipedia.org/wiki/USS_Somerset_%281862%29

Genealogy page for Daniel C. Stillson.
http://freepages.genealogy.rootsweb.ancestry.com/~stilsongeneology/stils onbk27.htm#dan

A detailed genealogy of Stillson, along with a full account of the development of the Stillson wrench while the inventor was employed by the J.J. Walworth Company.

History of the J.J. Walworth Company
http://users.eastlink.ca/~pspencer/nsaeta/walworth.html

A brief history of the J.J. Walworth Company and an account of Stillson’s career, development and marketing of the Stillson pipe wrench. Information for the page was excerpted from A History of 100 Years of Valve Manufacturing - The Story of the Walworth Company, Inc. Oldest Manufacturer of Valve and Fittings in the United States. 1942.