▁S nell ▁▁ 1 9 3 0 – 1 9 3 2 ▁Fred ▁Turn b ull ▁▁ 1 9 3 2 – 1 9 3 6 ▁W . ▁Peter ▁Code ▁▁ 1 9 3 6 – 1 9 4 4 ▁Edward ▁S . ▁Hog g ▁▁ 1 9 4 4 – 1 9 4 7 ▁Har vey ▁W . ▁Hall ad ay ▁▁ 1 9 4 7 – 1 9 4 9 ▁Dr . ▁Charles ▁R . ▁B unn ▁▁ 1 9 4 9 – 1 9 5 1 ▁John ▁V . ▁B ett enson ▁▁ 1 9 5 1 – 1 9 5 3 ▁Paul ▁C raw ford ▁▁ 1 9 5 3 – 1 9 5 5 ▁Har vey ▁W . ▁Hall ad ay ▁▁ 1 9 5 5 – 1 9 6 1 ▁Jack ▁M . ▁Mc A fe e ▁▁ 1 9 6 1 – 1 9 6 5 ▁Ernest ▁New man ▁( res igned ▁from ▁office ) ▁▁ 1 9 6 5 ▁F . B . ▁Moore ▁( pro ▁temp ore ) ▁▁ 1 9 6 5 – 1 9 7 4 ▁R . ▁E . ▁Bar rett ▁▁ 1 9 7 4 – 1 9 7 7 ▁Roy ▁McG reg or ▁▁ 1 9 7 7 – 1 9 8 0 ▁Ken ▁Cur le ▁▁ 1 9 8 0 – 1 9 9 2 ▁Robert ▁J . ▁McG he e ▁▁ 1 9 9 2 – 2 0 0 4 ▁G ail ▁Sur kan ▁▁ 2 0