1890 - 1965 (74 years)
| James Arthur Montgomery |  | | B: | 29 May 1890 | | P: | Waldorf, Charles County, Maryland | | D: | 27 Feb 1965 | | P: | La Plata, Charles, Maryland |
| | John Donnelly Montgomery | | | B: | 26 Mar 1861 | | P: | Waldorf, Charles, Maryland | | M: | | | P: | | | D: | 25 Jun 1944 | | P: | LaPlata, Charles, Maryland, USA |
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| Elizabeth Ellen Gates | | | B: | Jan 1861 | | P: | Charles County, Maryland, USA | | D: | 30 Dec 1943 | | P: | La Plata, Charles, Maryland, USA |
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