Isaac R. Moores Jr. | |
|---|---|
 | |
| 4th Speaker of the Oregon House of Representatives | |
| In office 1864–1865 | |
| Preceded by | Joel Palmer |
| Succeeded by | Francis A. Chenoweth |
| Member of the Oregon House of Representatives | |
| In office 1862–1865 | |
| Constituency | Marion County |
| Personal details | |
| Born | February 14, 1831 Danville, Illinois |
| Died | July 25, 1884 (aged 53) Portland, Oregon |
| Political party | Republican |
| Spouse | Ellen R. Lamon |
Isaac Ross Moores Jr. (February 14, 1831 – July 25, 1884) was an American businessman and politician in the state of Oregon. The son of Isaac R. Moores, he was born in Illinois and moved to the Oregon Territory in 1852. In Oregon, he would serve in the Oregon House of Representatives, including as Speaker of that body.