▁R . ▁McG reg or ▁- ▁January ▁ 1 9 5 0 ▁to ▁July ▁ 1 9 5 0 ▁ ▁Captain ▁D . ▁L . ▁Wh el ch el ▁- ▁July ▁ 1 9 5 0 ▁to ▁August ▁ 1 9 5 1 ▁ ▁Captain ▁J . ▁C . ▁D emp sey ▁- ▁August ▁ 1 9 5 1 ▁to ▁July ▁ 1 9 5 2 ▁ ▁Captain ▁T . ▁W . ▁Hog an ▁- ▁July ▁ 1 9 5 2 ▁to ▁June ▁ 1 9 5 3 ▁ ▁Captain ▁M . ▁E . ▁Harrison ▁- ▁June ▁ 1 9 5 3 ▁to ▁August ▁ 1 9 5 4 ▁ ▁Captain ▁D . ▁G . ▁Ir v ine ▁- ▁August ▁ 1 9 5 4 ▁to ▁October ▁ 1 9 5 5 ▁ ▁Captain ▁C . ▁C . ▁Cole ▁- ▁October ▁ 1 9 5 5 ▁to ▁July ▁ 1 9 5 6 ▁ ▁Captain ▁J . ▁D . ▁F ulp ▁- ▁July ▁ 1 9 5 6 ▁to ▁July ▁ 1 9 5 7 ▁ ▁Captain ▁A . ▁K . ▁Ty ree ▁- ▁July ▁ 1 9 5 7 ▁to ▁July ▁ 1 9 5 8 ▁ ▁Captain ▁B . ▁C . ▁Hills ▁- ▁July ▁ 1 9 5 8 ▁to ▁October ▁ 1 9 5 9 ▁ ▁Captain ▁R . ▁F . ▁S ell ars ▁- ▁October ▁ 1 9 5 9 ▁to ▁November ▁ 1 9 6 0 ▁ ▁Captain ▁D . ▁G . ▁Ba er ▁- ▁November ▁ 1