| Father | Frederick Winthrop Duncan (b. 26 February 1816, d. 14 January 1881) |
| Mother | Elizabeth Gibson (b. 20 May 1820, d. 25 January 1878) |
| Son | Winthrop H Duncan+ (b. 22 August 1888, d. 14 August 1945) |
| Pedigree Chart | |
| Included in charts - lists | Descendants of Nathaniel Lancaster b. ca 1734 |
| Relationship | 3rd cousin 3 times removed of Charles Ryland ("Ryland") Scott 3rd cousin 5 times removed of Isaac Silas Vaughn 3rd cousin 5 times removed of Katherine Gilstrap Scott 3rd cousin 5 times removed of Joseph Ryland Scott 3rd cousin 5 times removed of Charles Parker ("Parker") Scott 3rd cousin 5 times removed of Orly Marie Vaughn 3rd cousin 5 times removed of Avital Catherine Vaughn |
| Burial | Richard Monroe Duncan was buried in Big Creek Cemetery, Medical Springs, Union, Oregon, United StatesBG. | |
| Birth | 25 August 1859 | He was born on 25 August 1859 in Fulton, Callaway, Missouri, United StatesBG. |
| Death | 26 December 1914 | He died on 26 December 1914 at age 55 in Baker City, Baker, Oregon, United StatesBG. |
| Last Edited | 7 June 2024 |