Cape Spencer Light (AK)
Historical Light List Characteristics
| Year | Characteristic | Reference Number |
| Missing light lists prior to 1914 | ||
| 1914 | Fl W 5s. W12. fl 0.5. | USLHS Light List (Pacific): 610 |
| Missing light lists for 1915-1929 | ||
| 1930-1933 | Fl W 15s. W16. fl 1. | USLHS Light List (Pacific): 1254 |
| Missing light lists for 1934-1944 | ||
| 1945 | Fl W 15s. W16. fl 1. | USCG Light List (Pacific): 2339 |
| Missing light lists for 1946-1949 | ||
| 1950-1951 | Fl W 15s. W16. fl 1. | USCG Light List (Pacific): 2339 |
| 1952-1957 | USCG Light List - Vol. I-V: 2577 | |
| 1958-1959 | Fl W 7.5s. W16. fl 0.5. | |
| 1960 | Fl W 7.5s. W16. fl 0.24. | |
| 1961-1963 | USCG Light List - Vol. III: 2577 | |
| 1964-1972 | Fl W 7.5s. W16. | USCG Light List - Vol. III: 3232 |
| 1973-1974 | Fl W 10s. W24. | |
| 1975-1977 | USCG Light List - Vol. III: 3281 | |
| 1978-1981 | Fl W 7.5s. W24. | |
| 1982-1984 | Fl W 10s. W24. | |
| 1985 | USCG Light List - Vol. VI: 3281 | |
| 1986 | USCG Light List - Vol. VI: 24240 | |
| 1988 | ||
| 1990 | ||
| Missing light lists for 1991-2003 | ||
| 2004 | Fl W 10s. W17. | USCG Light List - Vol. VI: 24240 |
Historical Light List Optics and Structures
| Year | Optic | Tower Height | Focal Plane | Description | Reference Number |
| Missing light lists prior to 1914 | |||||
| 1914 | NA | 10 | 90 | White; wooden house. | USLHS Light List (Pacific): 610 |
| Missing light lists for 1915-1929 | |||||
| 1930-1933 | 3 iov | 25 | 105 | White square concrete tower on rectangular concrete building. | USLHS Light List (Pacific): 1254 |
| Missing light lists for 1934-1944 | |||||
| 1945 | 3 e | 25 | 105 | White square concrete tower on rectangular concrete building. | USCG Light List (Pacific): 2339 |
| Missing light lists for 1946-1949 | |||||
| 1950-1951 | 3 e | 25 | 105 | White square concrete tower on rectangular concrete building. | USCG Light List (Pacific): 2339 |
| 1952-1960 | NA | USCG Light List - Vol. I-V: 2577 | |||
| 1961-1963 | USCG Light List - Vol. III: 2577 | ||||
| 1964-1974 | USCG Light List - Vol. III: 3232 | ||||
| 1975-1984 | USCG Light List - Vol. III: 3281 | ||||
| 1985 | USCG Light List - Vol. VI: 3281 | ||||
| 1986 | USCG Light List - Vol. VI: 24240 | ||||
| 1988 | |||||
| 1990 | |||||
| Missing light lists for 1991-2003 | |||||
| 2004 | NA | 25 | 105 | White square concrete tower on rectangular concrete building. | USCG Light List - Vol. VI: 24240 |
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1913-Present (Assumed the original 1913 lighthouse was located very close to the position of the current 1925 lighthouse.) |