Oregon City is the county seat of Clackamas County, Oregon, United States, located on the Willamette River near the southern limits of the Portland metropolitan area. As of the 2020 census, the city population was 37,572. Established in 1829 by the Hudson's Bay Company, in 1844 it became the first U.S. city west of the Rocky Mountains to be incorporated.
The Pioneer Courthouse is a federal courthouse in Portland, Oregon, United States. Built beginning in 1869, the structure is the oldest federal building in the Pacific Northwest, and the second-oldest west of the Mississippi River. Along with Pioneer Courthouse Square, it serves as the center of downtown Portland. It is also known as the Pioneer Post Office because a popular downtown Portland post office was, until 2005, located inside. The courthouse is one of four primary locations where the United States Court of Appeals for the Ninth Circuit hears oral arguments. It also houses the chambers of the Portland-based judges on the Ninth Circuit.
The following list presents the full set of National Register of Historic Places listings in Multnomah County, Oregon. However, please see separate articles for listings in each of Portland's six quadrants.
John Commingers Ainsworth was an American pioneer businessman and steamboat owner in Oregon. A native of Ohio, he moved west to mine gold in California before immigrating to Oregon where he piloted steamships and became a founder of the Oregon Steam Navigation Company and several banks.
The following outline is provided as an overview of and topical guide to the U.S. state of Oregon:
William Christmas Knighton was an American architect best known for his work in Oregon. Knighton designed the Governor Hotel in Portland, Johnson Hall at the University of Oregon, and the Oregon Supreme Court Building and Deepwood Estate in Salem. He served as Oregon's first state architect from 1911–1915, appointed by Governor Oswald West. By 1915, Knighton had designed ninety building projects as state architect. In 1919, Knighton was appointed by Governor Ben Olcott as the first president of the Oregon State Board of Architectural Examiners, a position he held until 1922. In 1920, Knighton was elected the sixth president of the Oregon Chapter of the American Institute of Architects. He remained on the chapter's board of trustees for several years and was chair of the Chapter Legislative Committee into the 1930s.
John Virginius Bennes was an American architect who designed numerous buildings throughout the state of Oregon, particularly in Baker City and Portland. In Baker City he did an extensive redesign of the Geiser Grand Hotel, designed several homes, and a now-demolished Elks building. He moved to Portland in 1907 and continued practicing there until 1942.
The Belle Ainsworth Jenkins Estate, located near Beaverton, Oregon, United States, is listed on the National Register of Historic Places. Built starting in 1912, the main house on the property was intended as a summer home. The entire 68-acre (28 ha) estate is owned by the Tualatin Hills Park & Recreation District (THPRD). The estate has eight buildings, including the main home and a farmhouse built in 1880.
The Maud and Belle Ainsworth House is a historic house located in the Southwest Hills neighborhood of Portland, Oregon. It is listed on the National Register of Historic Places.
The Morton Matthew McCarver House, also known as Locust Farm, was built in 1850 in Oregon City, Oregon for Morton M. McCarver. The house was prefabricated in Boston with Maine lumber and shipped to Oregon via Cape Horn. At the time of its erection in the 1850s it was therefore an unusually refined residence for frontier-era Oregon. The two story wood-frame house was originally about 40 feet (12 m) deep. Subsequent additions have more than doubled its size.
Ainsworth House may refer to:
Jennie Clark, also seen spelled Jenny Clark, was the first sternwheel-driven steamboat to operate on the rivers of the Pacific Northwest, including British Columbia. This vessel was commonly known as the Jennie when it was in service. The design of the Jennie Clark set a pattern for all future sternwheel steamboats built in the Pacific Northwest and in British Columbia.
