Mary Island Light (AK)
Historical Light List Characteristics
| Year | Characteristic | Reference Number |
| Missing light lists prior to 1906 | ||
| 1906 | F WR. Red sector between SE by 5/16 E and SE 1/4 E. Obstructed 90 degrees. W13.75, R13.75. | LHB Light List (Dist. 12-13): 244 |
| Missing light lists for 1907-1910 | ||
| 1911 | F WR. W14, R14. W142°-149.33°(7.33°), R149.33°-160.67°(11.34°), W160.67°-341°(180.33°). | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | ||
| 1914 | F WR. W12, R8. W142°-153°(11°), R153°-165°(12°), W165°-341°(176°). | USLHS Light List (Pacific): 544 |
| Missing light lists for 1915-1929 | ||
| 1930-1933 | Fl(2) WR 5s. W14, R14. fl 0.4, ec 0.2, fl 0.4, ec 4. R149°-165°(16°), W165°-342.5°(177.5°). | USLHS Light List (Pacific): 1095 |
| Missing light lists for 1934-1944 | ||
| 1945 | Fl(2) WR 10s. W14, R14. fl 1, ec 1, fl 1, ec 7. R149°-165°(16°), W165°-344°(179°). | USCG Light List (Pacific): 2092 |
| Missing light lists for 1946-1949 | ||
| 1950-1951 | Fl(2) WR 10s. W14, R14. fl 1, ec 1, fl 1, ec 7. R149°-165°(16°), W165°-344°(179°). | USCG Light List (Pacific): 2092 |
| 1952-1960 | USCG Light List - Vol. I-V: 2315 | |
| 1961-1963 | USCG Light List - Vol. III: 2315 | |
| 1964-1969 | USCG Light List - Vol. III: 2920 | |
| 1970-1972 | Fl W 6s. W14. fl 1. Obscured 344°-149°(165°). | |
| 1973-1974 | Fl W 6s. W10. Obscured 344°-149°(165°). | |
| 1975-1976 | USCG Light List - Vol. III: 2959 | |
| 1977-1979 | Fl W 6s. W10. Obscured 341°-150°(169°). | |
| 1980-1984 | Fl W 6s. W6. Obscured 341°-150°(169°). | |
| 1985 | USCG Light List - Vol. VI: 2959 | |
| 1986 | USCG Light List - Vol. VI: 21940 | |
| 1988 | ||
| 1990 | ||
| Missing light lists for 1991-2003 | ||
| 2004 | Fl W 6s. W6. Obscured 341°-150°(169°). | USCG Light List - Vol. VI: 21940 |
Historical Light List Optics and Structures
| Year | Optic | Tower Height | Focal Plane | Description | Reference Number |
| Missing light lists prior to 1906 | |||||
| 1906 | 4th | 45 | 67 | Octagonal, one-story, wooden building, pyramidal roof, surmounted by an octagonal tower and a cyclindrical lantern with black roof. | LHB Light List (Dist. 12-13): 244 |
| Missing light lists for 1907-1910 | |||||
| 1911 | 4th | NA | NA | White. Octagonal tower on fog signal house. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | |||||
| 1914 | NA | 45 | 67 | White; octagonal tower on fog signal house. | USLHS Light List (Pacific): 544 |
| Missing light lists for 1915-1929 | |||||
| 1930-1933 | 4 ei | 52 | 67 | White tower on octagonal building, black lantern. | USLHS Light List (Pacific): 1095 |
| Missing light lists for 1934-1944 | |||||
| 1945 | 4 e | 61 | 76 | White square tower on white building, black lantern. | USCG Light List (Pacific): 2092 |
| Missing light lists for 1946-1949 | |||||
| 1950-1951 | 4 e | 61 | 76 | White square tower on white building, black lantern. | USCG Light List (Pacific): 2092 |
| 1952-1960 | NA | USCG Light List - Vol. I-V: 2315 | |||
| 1961-1963 | USCG Light List - Vol. III: 2315 | ||||
| 1964-1969 | USCG Light List - Vol. III: 2920 | ||||
| 1970-1974 | NA | White square tower on white building. | |||
| 1975-1979 | USCG Light List - Vol. III: 2959 | ||||
| 1980-1983 | SG on white square tower on white building. | ||||
| 1984 | On white square tower on white building. | ||||
| 1985 | USCG Light List - Vol. VI: 2959 | ||||
| 1986 | USCG Light List - Vol. VI: 21940 | ||||
| 1988 | |||||
| 1990 | |||||
| Missing light lists for 1991-2003 | |||||
| 2004 | NA | NA | 76 | On white square tower on white building. | USCG Light List - Vol. VI: 21940 |
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1903-Present (Assumed the original 1903 lighthouse was located very close to the position of the current 1937 lighthouse.) |