Family: David Sydney Boyd McMahon / Johanna Phibbs (F751)
m. 1927Drag or scroll to see more of the chart.
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 | William Henry McMahon (1877-1952)
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 | Mary Annie Oliver, ("Annie") (1874-1934)
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| Colin William Redevers McMahon (1900-1969)  |
| Alma Mary Annie McMahon (1908-1982) |
| David Sydney Boyd McMahon (1902-1976)
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| Johanna Phibbs (1897-1983)
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