| Howell, Morgan L.; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | DEARBORN | Captain |
| Howell, Morgan L.; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | PUT-IN-BAY | Captain |
| Howell, Morgan L.; 1948 Red Book; 1948 | 1948 Red Book | 1948-00-00 | | President |
| Howell, Morgan L.; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | PUT-IN-BAY | Captain |
| Howell, Morgan L.; 1958 Red Book; 1958 | 1958 Red Book | 1958-00-00 | AQUARAMA | Captain |
| Howell, Morgan L.; 1961 Red Book; 1961 | 1961 Red Book | 1961-00-00 | AQUARAMA | Captain |
| Howell, Morgan L.; 1962 Red Book; 1962 | 1962 Red Book | 1962-00-00 | AQUARAMA | Captain |
| Howell, Morgan L.; 1967 Red Book; 1967 | 1967 Red Book | 1967-00-00 | MEDUSA CHALLENGER | Captain |
| Howell, Morgan L.; 1968 Red Book; 1968 | 1968 Red Book | 1968-00-00 | MEDUSA CHALLENGER | Captain |
| Howell, Morgan L.; Great Lakes News 5/42; 1942 | Great Lakes News 5/42 | 1942-00-00 | NORTH AMERICAN | Second Mate |
| Howell, Morgan L.; Great Lakes Review. 1944 | Great Lakes Review. 1944 | 1944-00-00 | NORTH AMERICAN | Third Mate |
| Howell, Morgan L.; Inland Seas Fall 1957 | Inland Seas Fall 1957 | 1957-00-00 | AQUARAMA | Captain |
| Howell, Morgan L.; Inland Seas Summer 1959 | Inland Seas Summer 1959 | 1959-00-00 | AQUARAMA | Captain |