The first USS Tillamook (Tug No. 16), later AT-16, later YT-122, later YTM-122, was a United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

 tug

Tugboat

A tugboat is a boat that maneuvers vessels by pushing or towing them. Tugs move vessels that either should not move themselves, such as ships in a crowded harbor or a narrow canal,or those that cannot move by themselves, such as barges, disabled ships, or oil platforms. Tugboats are powerful for...

 in service from 1914 to 1947.

Tillamook was laid down on 6 January 1914 by the Seattle Construction and Dry Dock Company at Seattle

Seattle, Washington

Seattle is the county seat of King County, Washington. With 608,660 residents as of the 2010 Census, Seattle is the largest city in the Northwestern United States. The Seattle metropolitan area of about 3.4 million inhabitants is the 15th largest metropolitan area in the country...

, Washington and launched

Ship naming and launching

The ceremonies involved in naming and launching naval ships are based in traditions thousands of years old.-Methods of launch:There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching." The oldest, most familiar, and most widely...

 on 15 August 1914. She was placed in service soon thereafter, probably later in August or in September 1914, as USS Tillamook (Tug No. 16).
Tillamook steamed south to San Francisco

San Francisco, California

San Francisco , officially the City and County of San Francisco, is the financial, cultural, and transportation center of the San Francisco Bay Area, a region of 7.15 million people which includes San Jose and Oakland...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, and reported to the Commandant, 12th Naval District, for duty at Mare Island Navy Yard in Vallejo

Vallejo, California

Vallejo is the largest city in Solano County, California, United States. The population was 115,942 at the 2010 census. It is located in the San Francisco Bay Area on the northeastern shore of San Pablo Bay...

, California. She served her entire 33-year U.S. Navy career towing and assisting ships at Mare Island Navy Yard.

During her service, Tillamook changed designations three times. On 17 July 1920, when the Navy adopted the modern system of alpha-numeric hull designations

Hull classification symbol

The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration use hull classification symbols to identify their ship types and each individual ship within each type...

, she was classified as a fleet tug and redesignated AT-16. On 31 January 1936, a number of old tugs previously classified as fleet tugs were reclassified as harbor tugs, and Tillamook became a harbor tug designated YT-122. She received her final classification, as a medium harbor tug, on 13 April 1944 and was redesignated YTM-122.

Tillamook was placed out of service and turned over to the Maritime Commission for disposal on 28 April 1947.