Sentinel Island Light (AK)
Historical Light List Characteristics
| Year | Characteristic | Reference Number |
| Missing light lists prior to 1906 | ||
| 1906 | F W. W14.75. | LHB Light List (Dist. 12-13): 254 |
| Missing light lists for 1907-1910 | ||
| 1911 | F W. W14. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | ||
| 1914 | F W. W12. | USLHS Light List (Pacific): 598 |
| Missing light lists for 1915-1929 | ||
| 1930-1933 | Fl(2) W 6s. W15. fl 0.3, ec 0.9, fl 0.3, ec 4.5. | USLHS Light List (Pacific): 1220 |
| Missing light lists for 1934-1944 | ||
| 1945 | Fl(2) W 10s. W15. fl 1, ec 1, fl 1, ec 7. | USCG Light List (Pacific): 2294 |
| Missing light lists for 1946-1949 | ||
| 1950-1951 | Fl(2) W 10s. W15. fl 1, ec 1, fl 1, ec 7. | USCG Light List (Pacific): 2294 |
| 1952-1960 | USCG Light List - Vol. I-V: 2530 | |
| 1961-1963 | USCG Light List - Vol. III: 2530 | |
| 1964 | USCG Light List - Vol. III: 3184 | |
| 1965-1972 | Fl W 5s. W15. | |
| 1973-1974 | Fl W 5s. W17. | |
| 1975 | USCG Light List - Vol. III: 3230 | |
| 1976-1984 | Fl W 10s. W17. | |
| 1985 | USCG Light List - Vol. VI: 3230 | |
| 1986 | USCG Light List - Vol. VI: 23850 | |
| 1988 | Fl W 10s. W15. | |
| 1990 | Fl W 10s. W13. | |
| Missing light lists for 1991-2003 | ||
| 2004 | Fl W 10s. W14. Obscured 152°-296°(144°). | USCG Light List - Vol. VI: 23850 |
Historical Light List Optics and Structures
| Year | Optic | Tower Height | Focal Plane | Description | Reference Number |
| Missing light lists prior to 1906 | |||||
| 1906 | 4th | 42 | 82 | White, square tower attached to the center of the westerly front of a white, square, double, two-story dwelling with brown roof. | LHB Light List (Dist. 12-13): 254 |
| Missing light lists for 1907-1910 | |||||
| 1911 | 4th | NA | NA | White. Square tower, attached to center of dwelling. | USLHS Light List (16th-18th): NA |
| Missing light lists for 1912-1913 | |||||
| 1914 | NA | 42 | 82 | White; square tower on building. | USLHS Light List (Pacific): 598 |
| Missing light lists for 1915-1929 | |||||
| 1930 | 4 a | 49 | 82 | White square tower on dwelling. | USLHS Light List (Pacific): 1220 |
| 1931-1933 | 4 ei | ||||
| Missing light lists for 1934-1944 | |||||
| 1945 | 4 e | 51 | 86 | White square tower on fog signal building. | USCG Light List (Pacific): 2294 |
| Missing light lists for 1946-1949 | |||||
| 1950-1951 | 4 e | 51 | 86 | White square tower on fog signal building. | USCG Light List (Pacific): 2294 |
| 1952-1960 | NA | USCG Light List - Vol. I-V: 2530 | |||
| 1961-1963 | USCG Light List - Vol. III: 2530 | ||||
| 1964-1974 | USCG Light List - Vol. III: 3184 | ||||
| 1975-1984 | USCG Light List - Vol. III: 3230 | ||||
| 1985 | USCG Light List - Vol. VI: 3230 | ||||
| 1986 | USCG Light List - Vol. VI: 23850 | ||||
| 1988 | |||||
| 1990 | |||||
| Missing light lists for 1991-2003 | |||||
| 2004 | NA | NA | 86 | White square tower on fog signal building. | USCG Light List - Vol. VI: 23850 |
 |
1902-Present (Assumed the original 1902 lighthouse was located very close to the current 1935 lighthouse.) |