Curtis Harvey Castle was a U.S. Representative

United States House of Representatives

The United States House of Representatives is one of the two Houses of the United States Congress, the bicameral legislature which also includes the Senate.The composition and powers of the House are established in Article One of the Constitution...

 from 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...

.

Born near Galesburg, Illinois

Galesburg, Illinois

Galesburg is a city in Knox County, Illinois, in the United States. As of the 2010 census, the city population was 32,195. It is the county seat of Knox County....

, Castle attended the public schools and Knox College, Galesburg, Illinois

Galesburg, Illinois

Galesburg is a city in Knox County, Illinois, in the United States. As of the 2010 census, the city population was 32,195. It is the county seat of Knox County....

.
He was graduated from Northwestern University

Northwestern University

Northwestern University is a private research university in Evanston and Chicago, Illinois, USA. Northwestern has eleven undergraduate, graduate, and professional schools offering 124 undergraduate degrees and 145 graduate and professional degrees....

, Evanston, Illinois

Evanston, Illinois

Evanston is a suburban municipality in Cook County, Illinois 12 miles north of downtown Chicago, bordering Chicago to the south, Skokie to the west, and Wilmette to the north, with an estimated population of 74,360 as of 2003. It is one of the North Shore communities that adjoin Lake Michigan...

, in 1872.
He served as principal of the Washington, Texas, public schools 1872-1876.
He was graduated from the College of Physicians and Surgeons, Keokuk, Iowa

Keokuk, Iowa

Keokuk is a city in the southeastern part of the U.S. state of Iowa and one of the county seats of Lee County. The other county seat is Fort Madison. The population was 11,427 at the 2000 census. The city is named after the Sauk Chief Keokuk, who is thought to be buried in Rand Park...

, in 1878.
Practiced in Fulton County, Illinois

Fulton County, Illinois

Fulton County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 37,069, which is a decrease of 3.1% from 38,250 in 2000. Its county seat is Lewistown. Canton is the largest city. Both cities are southwest of Peoria, and the county is considered...

, and in Wayland, Iowa

Wayland, Iowa

Wayland is a city in Henry County, Iowa, United States. The population was 945 at the 2000 census. From 1851 to 1880 the town was known as .-Geography:Wayland is located at ....

, until 1882.
He moved to Point Arena, California

Point Arena, California

Point Arena is a small coastal city in Mendocino County, California, United States. Point Arena is located west of Hopland, at an elevation of 118 feet . The population was 449 at the 2010 census, down from 474 at the 2000 census, making it one of the smallest incorporated cities in the state...

, in 1882 and to Merced, California

Merced, California

Merced is a city in, and the county seat of, Merced County, California in the San Joaquin Valley of Northern California. As of the 2010 census, the city had a population of 78,958. Incorporated in 1889, Merced is a charter city that operates under a council-manager government...

, in 1888, and continued the practice of medicine.
He served from 1894 to 1896 as a member of the American Academy

American Academy

American Academy can refer to:*American Academy in Berlin*Dubai American Academy*American Academy of Larnaca*American Academy in Rome*Üsküdar American Academy...

 of Medicine, as chairman of the Populist executive committee of Merced County, and as a member of the State executive committee.

Castle was elected as a Populist to the Fifty-fifth

55th United States Congress

-House of Representatives:* Republican: 206 * Democratic: 124* Populist: 22* Silver Republican: 3* Silver: 1* Independent Republican: 1TOTAL members: 357-Leadership:-Senate:* President: Garret Hobart * President pro tempore: William P...

 Congress (March 4, 1897-March 3, 1899).
He was an unsuccessful candidate for reelection in 1898 to the Fifty-sixth

56th United States Congress

-House of Representatives:- Leadership :- Senate :* President: Garret Hobart , until November 21, 1899 , vacant thereafter.* President pro tempore: William P. Frye * Democratic Caucus Chairman: James K. Jones...

 Congress.
He resumed the practice of medicine in Merced, California

Merced, California

Merced is a city in, and the county seat of, Merced County, California in the San Joaquin Valley of Northern California. As of the 2010 census, the city had a population of 78,958. Incorporated in 1889, Merced is a charter city that operates under a council-manager government...

.
He lived in retirement in Santa Barbara, California

Santa Barbara, California

Santa Barbara is the county seat of Santa Barbara County, California, United States. Situated on an east-west trending section of coastline, the longest such section on the West Coast of the United States, the city lies between the steeply-rising Santa Ynez Mountains and the Pacific Ocean...

, until his death on July 12, 1928.
He remains were cremated and the ashes deposited in the mausoleum of the Santa Barbara Cemetery and Crematory.