Margaret Edna Percival
1918 - 1973 (54 years)
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| Margaret Edna Percival 1918-1973 |
| Margaret Edna Percival | |
| B: | 25 Sep 1918 |
| D: | 1973 |
 | Douglas Beecroft Underhill 1918-1984 |
| Douglas Beecroft Underhill | |
| B: | 19 Oct 1918 |
| Barrie, Ontario, Canada | |
| M: | 23 May 1946 |
| Barrie, Ontario, Canada | |
| D: | 4 Apr 1984 |
| Mississauga, Ontario, Canada | |