| Sheffer, John E.; 1975 ASC Appointment List; 1975 | 1975 ASC Appointment List | 1975-00-00 | NICOLET | Second Assistant |
| Sheffer, John E.; ASC Soundings 11(1)1991 | ASC Soundings 11(1)1991 | 1991-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; ASC Soundings 12(1) 1992 | ASC Soundings 12(1) 1992 | 1992-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; ASC Soundings 9(2)1989 | ASC Soundings 9(2)1989 | 1989-00-00 | ROGER M. KYES | Second Assistant |
| Sheffer, John E.; ASC Soundinngs Apr 1990 | ASC Soundinngs Apr 1990 | 1990-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; Soundings July 1993 | Soundings July 1993 | 1993-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; Soundings Mar-Apr 1995 | Soundings Mar-Apr 1995 | 1995-00-00 | NICOLET | Second Assistant |
| Sheffer, John E.; Soundings Mar-Apr 1995 | Soundings Mar-Apr 1995 | 1995-00-00 | NICOLET | Third Assistant |
| Sheffer, John E.; Soundings Mar-Apr 1995 | Soundings Mar-Apr 1995 | 1995-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; Soundings Mar-Apr 1995 | Soundings Mar-Apr 1995 | 1995-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; Soundings Mar-Apr 1995 | Soundings Mar-Apr 1995 | 1995-00-00 | AMERICAN REPUBLIC | Second Assistant |
| Sheffer, John E.; Soundings May 1988 | Soundings May 1988 | 1988-00-00 | CHARLES E. WILSON | Third Assistant |