Facts:   - battles: second world war    - death date: 21 march 1975    - allegiance: united kingdom    - commands: scotland admiral superintendent hmnb devonport -lrb- 1960 -- 64 -rrb- 2nd and submarine flotilla -lrb- 1954 -- 55 -rrb- maidstone 1937 6 northern -lrb- 1954 -- 55 -rrb- constance r71 6 -lrb- 1945 ireland -- 46 -rrb- traveller n48 6 -lrb- 1941 -- 42 -lrb- -rrb- sturgeon 73s 6 -lrb- 1938 -- 40 -rrb- 1964 -- 66 -rrb-    - rank: vice admiral      - awards: knight companion of the order of the bath distinguished service order commander & bar mentioned in despatches of the order of the british empire    - birth date: 08 october 1909    - serviceyears: 1923 -- 1966    - name: sir david gregory    - branch: united kingdom    - death place: alyth , scotland    - birth place: perth , scotland   Based on these bullet points, write a short biography describing the life of david gregory -lrb- royal navy officer -rrb- .
Answer:
vice admiral sir george david archibald gregory & bar -lrb- 8 october 1909 -- 21 march 1975 -rrb- was a royal navy officer who became flag officer , scotland and northern ireland .