| Johnston, Samuel | | | HARRIS N. SNYDER | First Assistant |
| Johnston, Samuel; 1975 ASC Appointment List; 1975 | 1975 ASC Appointment List | 1975-00-00 | JOHN T. HUTCHINSON | Chief Engineer |
| Johnston, Samuel; 1975 Red Book; 1975 | 1975 Red Book | 1975-00-00 | JOHN T.HUTCHINSON | Chief Engineer |
| Johnston, Samuel; 1976 Red Book; 1976 | 1976 Red Book | 1976-00-00 | JOHN J. BOLAND | Chief Engineer |
| Johnston, Samuel; 1977 Red Book; 1977 | 1977 Red Book | 1977-00-00 | JOHN J. BOLAND | Chief Engineer |
| Johnston, Samuel; 1978 Red Book; 1978 | 1978 Red Book | 1978-00-00 | JOHN J. BOLAND | Chief Engineer |
| Johnston, Samuel; 1979 Red Book; 1979 | 1979 Red Book | 1979-00-00 | JOHN J. BOLAND | Chief Engineer |
| Johnston, Samuel; 1980 Red Book; 1980 | 1980 Red Book | 1980-00-00 | JOHN J. BOLAND | Chief Engineer |
| Johnston, Samuel; 1981 Red Book; 1981 | 1981 Red Book | 1981-00-00 | JOHN J. BOLAND | Chief Engineer |
| Johnston, Samuel; ASC Soundings March 1986 | ASC Soundings March 1986 | 1986-00-00 | JOHN J. BOLAND | Third Assistant |
| Johnston, Samuel; ASC Soundings March 1986 | ASC Soundings March 1986 | 1986-00-00 | | First Assistant |
| Johnston, Samuel; ASC Soundings March 1986 | ASC Soundings March 1986 | 1986-00-00 | | Chief Engineer |
| Johnston, Samuel; ASC Soundings March 1986 | ASC Soundings March 1986 | 1986-00-00 | JOHN T. HUTCHINSON | Chief Engineer |