▁Le ym el ▁▁▁ 1 9 3 7 – 1 9 4 1 ▁Frank ▁A . ▁H oman ▁▁ 1 9 4 1 – 1 9 4 7 ▁Z . ▁S . ▁Le ym el ▁† ▁▁ 1 9 4 7 – 1 9 4 7 ▁Gl enn ▁M . ▁Dev ore ▁( act ing ) ▁▁ 1 9 4 9 – 1 9 5 7 ▁Gordon ▁D . ▁D unn ▁▁ 1 9 5 7 – 1 9 5 8 ▁C . ▁Cal ▁Evans ▁▁ 1 9 5 8 – 1 9 6 3 ▁Arthur ▁L . ▁S ell and ▁† ▁▁ 1 9 6 3 – 1 9 6 5 ▁Wal lace ▁Hend erson ▁( act ing ) ▁▁ 1 9 6 5 – 1 9 6 9 ▁F loyd ▁H . ▁Hy de ▁▁▁ 1 9 6 9 – 1 9 7 7 ▁Ted ▁C . ▁Will s ▁▁ 1 9 7 7 – 1 9 8 5 ▁Dan ▁White h urst ▁▁ 1 9 8 5 – 1 9 8 9 ▁D ale ▁Do ig ▁▁ 1 9 8 9 – 1 9 9 3 ▁Kar en ▁Hum ph rey ▁▁ 1 9 9 3 – 2 0 0 1 ▁Jim ▁P atter son ▁▁ 2 0 0 1 – 2 0 0 9 ▁Alan ▁Aut ry ▁▁ 2 0 0 9 – 2 0 1 7 ▁Ash ley ▁S we ar eng in ▁▁ 2 0 1 7 – 2 0 2 1 ▁Lee ▁Brand ▁▁ 2 0