9 6 0 ▁to ▁September ▁ 1 9 6 1 ▁ ▁Captain ▁L . ▁B . ▁Mc Donald ▁- ▁September ▁ 1 9 6 1 ▁to ▁August ▁ 1 9 6 2 ▁ ▁Captain ▁S . ▁S . ▁Mann ▁- ▁August ▁ 1 9 6 2 ▁to ▁August ▁ 1 9 6 3 ▁ ▁Captain ▁R . ▁K . ▁Kauf man ▁- ▁August ▁ 1 9 6 3 ▁to ▁September ▁ 1 9 6 4 ▁ ▁Captain ▁F . ▁B . ▁Clar ke ▁- ▁September ▁ 1 9 6 4 ▁to ▁September ▁ 1 9 6 5 ▁ ▁Captain ▁T . ▁H . ▁William ▁- ▁September ▁ 1 9 6 5 ▁to ▁July ▁ 1 9 6 6 ▁ ▁Captain ▁D . ▁A . ▁Pa ol ucci ▁- ▁July ▁ 1 9 6 6 ▁to ▁July ▁ 1 9 6 7 ▁ ▁Captain ▁W . ▁L . ▁Si ple ▁- ▁July ▁ 1 9 6 7 ▁to ▁January ▁ 1 9 6 9 ▁ ▁Captain ▁R . ▁B . ▁Cow d rey ▁- ▁January ▁ 1 9 6 9 ▁to ▁March ▁ 1 9 7 0 ▁ ▁Captain ▁J . ▁B . ▁Wilson ▁- ▁March ▁ 1 9 7 0 ▁to ▁March ▁ 1 9 7 1 ▁ ▁Captain ▁R . ▁S . ▁Led d ick ▁- ▁March ▁ 1 9 7 1 ▁to ▁August ▁ 1 9 7 2 ▁ ▁Captain ▁T . ▁L . ▁Mal one , ▁Jr . ▁- ▁August ▁ 1 9 7 2 ▁to ▁May ▁ 1 9