Sir John William Pitt Muir Mackenzie
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| William Ronald Drysdale 1904-Yes, date unknown |
| William Ronald Drysdale | |
| B: | 5 Nov 1904 |
| D: | Yes, date unknown |
| John Alexander Drysdale 1908-Yes, date unknown |
| John Alexander Drysdale | |
| B: | 15 Nov 1908 |
| D: | Yes, date unknown |
| Wing Cmdr James Kenneth Montague Drysdale, RAF | |
| B: | 29 Dec 1909 |
| Farnham, North Dorset District, Dorset, England | |
| D: | 15 Sep 1941 |
| Le Havre, Departement de la Seine-Maritime, Haute-Normandie, France | |
 | Mary Louisa Muir Mackenzie 1878-1946 |
| Mary Louisa Muir Mackenzie | |
| B: | 1878 |
| Kirkcaldy, Fife, Scotland | |
| D: | 11 Oct 1946 |
| Port Appin, Argyll and Bute, Scotland | |
| Lt. Col. William W. Drysdale, DSO 1876-1916 |
| Lt. Col. William W. Drysdale, DSO | |
| B: | 4 Nov 1876 |
| North Pitteadie House, Kinghorn, Fife, Scotland | |
| M: | 19 Jan 1904 |
| D: | 29 Sep 1916 |
| Longueval, Departement de la Somme, Picardie, France | |
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