| Samuel Wark Douglas | ||||
| | | ||||
| Richard Steele Douglas | ||||
| |b 31 Aug 1888 | | | |||
| | | Sarah Smith | |||
| | | ||||
| Douglas | William Mateer, Jr. | > | ||
| | | John Mateer | Rebecca Black | > | | | Horace Nelson Mateer | b 17 Nov 1807 | William Diven |
| | | |b 12 Dec 1855 | Mary Nelson Diven | Rebecca Nelson | > |
| Mary Nelson Mateer | d 10 Jun 1939 | b 09 Aug 1816 | ||
| b 02 Sep 1891 | | | George Gaston | ||
| d 17 Dec 1971 | Elizabeth Orpha Gaston | |||
| b 02 Mar 1866 | Rachel Montgomery | |||
| d Oct1961 | ||||
Source: McTeer - Mateer Families of Cumberland County Pennsylvania, Frances Davis McTeer, 1975, p 114.