SS Sir William Siemens was a steel-hulled American lake freighter in service between 1896 and 1944. Built in 1896 by the Globe Iron Works Company of Cleveland for John D. Rockefeller's Bessemer Steamship Company, she was the third of three lake freighters, each of which shared the unofficial title of Queen of the Lakes due to their record-breaking length.

Built for use in the iron ore trade, she made her maiden voyage on August 25, 1896. In 1901, the Bessemer fleet merged into the Pittsburgh Steamship Company. Sir William Siemens was sold to the J. A. Paisley Steamship Company, and was renamed William B. Pilkey. She was sold to the Columbia Transportation Company in 1935, and was renamed Frank E. Vigor in 1941.

SS Sir William Siemens

On the morning of April 27, 1944, Frank E. Vigor was traveling on Lake Erie in a thick fog, bound for Buffalo, New York, with a cargo of sulphur. While transiting the Pelee Passage, she collided with the freighter Philip Minch. Frank E. Vigor was badly damaged below the waterline, and quickly began to list. Her entire crew was rescued by Philip Minch. She eventually capsized and sank in of water.

SS Sir William Siemens

History

Background

In 1843, the gunship USS Michigan, built in Erie, Pennsylvania, became the first iron-hulled vessel built on the Great Lakes. In the mid-1840s, Canadian companies began importing iron vessels prefabricated by shipyards in the United Kingdom. Merchant, the first iron-hulled merchant ship constructed on the Great Lakes, was built in 1862. Despite the success of Merchant, wooden vessels remained preferable to iron ones until the 1880s, due to their inexpensiveness and the abundance of timber. In the early 1880s, shipyards around the Great Lakes began to construct iron ships on a relatively large scale. In 1884, the first steel freighters were built on the Great Lakes. By the 1890s, the majority of ships constructed on the lakes were made of steel. The late 19th and early 20th centuries saw a rapid increase in the size of lake freighters; the first freighter was built in 1895 and the first freighter was constructed five years later.

SS Sir William Siemens

Throughout the 1880s, the iron ore trade on the Great Lakes grew exponentially, primarily due to the increasing size of the lake freighters, and the rise in the number of trips made by ore boats to the ore docks of Lake Superior. As the railways were unable to keep up with the rapid production of iron ore, most of it was transported by bulk freighters.

Design and construction

Sir William Siemens (US official number 116732) was built in Cleveland, Ohio, in 1896 by the Globe Iron Works Company. Her construction was delayed by a strike at the shipyard after the launching of her sister ship Sir Henry Bessemer on May 9. She was completed on July 15, and was launched on July 25, 1896, as hull number 67. Sir William Siemens was built for John D. Rockefeller's Bessemer Steamship Company of Cleveland, and was named after German-British inventor Carl Wilhelm Siemens. Sir William Siemens was one of the largest ships on the Great Lakes at the time of her construction, earning her the unofficial title Queen of the Lakes, which she shared with her sister ship Sir Henry Bessemer and the M. A. Hanna & Company's freighter Coralia. They were surpassed in length on August 1, 1896, by the Sir William Fairbairn.

The cargo hold of Sir William Siemens was reminiscent of those found on older wooden lake freighters; between 1882 and 1904, the cargo holds of all iron and steel freighters contained stanchions and steel angles which were the equivalent of the knees used on wooden freighters. The hold was divided into four separate compartments by three screen bulkheads which stretched to the spar deck, and was accessed via twelve hatches located on centers. The four cargo compartments of Sir William Siemens had capacities of , , and , making her total cargo capacity . Sir William Siemens pilothouse was located behind her forecastle. She also had a deckhouse on her aft spar deck, which contained a galley and dining rooms; accommodations for her crew were housed in the aft deckhouse and forecastle. Her electric lighting system was manufactured by the General Electric Company of Schenectady, New York.

The hull of Sir William Siemens had an overall length of , and a length between perpendiculars of . Her beam was . The molded depth (roughly speaking, the vertical height of her hull) was . The distance between the tip of Sir William Siemens keel and the tip of her sheer strake was , and the depth of the ballast tanks of her double bottom were deep. She had a gross register tonnage of 4344 tons, and a net register tonnage of 3293 tons.