Oregon Pine was a six-masted lumber

Lumber

Lumber or timber is wood in any of its stages from felling through readiness for use as structural material for construction, or wood pulp for paper production....

 schooner

Schooner

A schooner is a type of sailing vessel characterized by the use of fore-and-aft sails on two or more masts with the forward mast being no taller than the rear masts....

 completed in 1920, which was built as a result of the shipbuilding efforts associated with World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

. She sailed in the West Coast lumber trade

West coast lumber trade

The West Coast lumber trade was a maritime trade route on the West Coast of the United States. It carried lumber from the coasts of Washington, Oregon, and Northern and Central California mainly to the port of San Francisco.-Lumber schooners:...

, bringing lumber from the Columbia River

Columbia River

The Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada, flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state...

 to Shanghai

Shanghai

Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

 and Adelaide, Australia.

Construction

Oregon Pine was completed in 1920, as part of a contract by the Emergency Fleet Commission "for 12 hulls of its own design, to be delivered without engines. There were no cancellations." Her name was to be Cotys, with a sister ship of Cossa, both six-masted schooners. Upon completion, the schooners were renamed Oregon Pine and Oregon Fir, and later in their careers, Dorothy H. Sterling and Helen B. Sterling, respectively. The schooners were chartered for offshore voyages from the Columbia River with lumber. The two ships were of identical specifications: 2,526 tons, 267 ft. long, with a capacity of 2,225,000 feet of lumber.

Voyages

The Oregon Pine made her last offshore voyage in 1924. She was laid up at Astoria, Oregon

Astoria, Oregon

Astoria is the county seat of Clatsop County, Oregon, United States. Situated near the mouth of the Columbia River, the city was named after the American investor John Jacob Astor. His American Fur Company founded Fort Astoria at the site in 1811...

, where Capt. Sterling purchased her in 1926, renaming her Dorothy H Sterling Oregon Pine and Oregon Fir were both operating "quite steadily" from the Columbia River in 1926 for the Shanghai Building Co. In 1928, Dorothy H Sterling carried lumber from Puget Sound to Adelaide, Australia. There she was "libelled for harbor dues and crew wages." The ship was broken up in Adelaide in 1930.