| John F. Raper, Jr. | |
| Office: | Judge of the Wyoming Supreme Court |
| Term Start: | December 18, 1974 |
| Term End: | June 14, 1983 |
| Appointer: | Stanley K. Hathaway |
| Preceded: | John Joseph McIntyre |
| Succeeded: | G. Joseph Cardine |
| Office1: | Wyoming Attorney General |
| Term Start1: | 1963 |
| Term End1: | 1965 |
| Preceded1: | Norman B. Gray |
| Succeeded1: | Milward Simpson |
| Office2: | United States Attorney for the District of Wyoming |
| President2: | Dwight D. Eisenhower |
| Term Start2: | 1953 |
| Term End2: | 1961 |
| Predecessor2: | John J. Hickey |
| Birth Date: | 13 June 1913 |
| Birth Place: | Mapleton, Iowa, U.S. |
| Death Place: | Cheyenne, Wyoming, U.S. |
| Restingplace: | Sheridan Municipal Cemetery, Sheridan, Wyoming, U.S. |
| Party: | Republican |
| Father: | John F. Raper Sr. |
| Spouse: | Nellie Marie Chesler Raper |
| Education: | University of Wyoming College of Law (JD) |
| Allegiance: |  United States |
| Branch: | Wyoming Army National Guard |
| Serviceyears: | 1937-1960 |
| Rank: | Colonel |
| Unit: | 115th Cavalry Regiment 300th Armored Field Artillery Battalion |
| Battles: | Korean War |
John Frederick Raper Jr.[1] (June 13, 1913 – June 10, 1993) was a justice of the Wyoming Supreme Court from December 18, 1974, to June 14, 1983.
Born in Mapleton, Iowa, Raper received his Juris Doctor from the University of Wyoming in 1936 and undertook the practice of law in Sheridan, Wyoming.
He served from 1937 to 1960 in the Wyoming Army National Guard, where he became a colonel.[2] He was in the 115th Cavalry Regiment and during the Korean War, he was the commander of the 300th Armored Field Artillery Battalion, known as the "Cowboy Cannoneers".[2] [3] [4] While in Korea, the 300th Armored Field Artillery Battalion fought with distinction and earned the Distinguished Unit Citation.[5]
He also maintained his law practice into the 1950s.[6]
In 1954, Raper was appointed United States Attorney for Wyoming.[7] He was then Wyoming Attorney General, and a Wyoming district court judge until he was appointed by to the Wyoming Supreme Court, on December 18, 1974, by Governor Stanley K. Hathaway. Raper served until his retirement, on June 14, 1983.[6]
After a decade in retirement, Raper died in Cheyenne, Wyoming on June 10, 1993. Having also been a colonel in the Wyoming National Guard, the National Guard armory in Cheyenne is named for him.[6]