| Name | Date Elected | Term Commenced | Remarks |
| William T. Acre | 05/06/50 | 05/18/50 | Resg. 11/15/54 |
| George A. Snowden | Appointed 05/07/55 05/06/61 | 11/29/54 | Resg. 1865 |
| Thomas P. Cottle | Appointed 05/07/66 02/08/68 | 08/04/65 11/01/68 | |
| Andrew J. Fletcher | 11/10/74 | 11/27/74 |