| 1. John Gilmore Montgomery |
 |
| B: |
7 Aug 1893 |
| P: |
Galveston, Galveston, Texas, USA |
| D: |
5 Sep 1967 |
| P: |
Houston, Harris, Texas, USA |
|
| 2. James Sorley Montgomery |
|
| B: |
17 Oct 1845 |
| P: |
Dumfries, Dumfries-shire, Scotland |
| M: |
1872 |
| P: |
Galveston, Texas, USA |
| D: |
14 Dec 1919 |
| P: |
Galveston, Galveston, Texas, USA |
|
| 4. John Gilmour Montgomery |
|
| B: |
30 May 1811 |
| P: |
Paisley, Renfrewshire, Scotland |
| M: |
22 Jun 1838 |
| P: |
Glasgow, Lanarkshire, Scotland |
| D: |
29 Apr 1892 |
| P: |
Saltcoats, Ayrshire, Scotland |
|
|
1893 - 1967 (74 years)