William V. Mason III
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| Father | William Virginius Mason Jr. b. 14 May 1878 |
| Mother | Isabel R. Mathews |
| Charts | George Mason IV Descendant Chart |
The Mason Web
The Mason Descendants Database
The Mason Web| Father | William Virginius Mason Jr. b. 14 May 1878 |
| Mother | Isabel R. Mathews |
| Charts | George Mason IV Descendant Chart |