Portsmouth Harbor (New Hampshire)
Historical Light List Characteristics
| 1839 | F W. W24. | USLHE Light List (US): 30 |
| 1849 | F W. W18. | USLHE Light List (US): 33 |
| 1858 | F W. W14. | LHB Light List (US): 50 |
| 1860 | LHB Light List (US): 43 | |
| 1865-1866 | LHB Light List (All Coasts): 43 | |
| 1868 | ||
| 1870 | LHB Light List (All Coasts): 44 | |
| 1878-1879 | LHB Light List (All Coasts): 54 | |
| 1886 | ||
| 1888 | LHB Light List (All Coasts): 56 | |
| 1893 | F W. W12. | LHB Light List (Atlantic): 63 |
| 1898 | LHB Light List (Atlantic): 71 | |
| 1899 | LHB Light List (Atlantic): 72 | |
| 1905 | LHB Light List (Atlantic): 77 | |
| 1908 | LHB Light List (Atlantic): 79 | |
| 1915 | F R. R13. | USLHS Light List (Atlantic): 93 |
| 1917 | USLHS Light List (Atlantic): 98 | |
| 1920 | ||
| 1927 | USLHS Light List (Atlantic): 102 | |
| 1931 | USLHS Light List (Atlantic): 104 | |
| 1935 | F G. G13. | USLHS Light List (Atlantic): 108 |
| 1940 | USCG Light List (Atlantic): 123 | |
| 1943 | F G. G12. | USCG Light List (Atlantic): 169 |
| 1945 | ||
| 1946-1947 | F G. G13. | |
| 1950-1952 | ||
| 1953-1955 | USCG Light List - Vol. I-VI: 227 | |
| 1957 | ||
| 1959-1960 | USCG Light List - Vol. I-V: 243 | |
| 1961 | USCG Light List - Vol. I: 243 | |
| 1963-1965 | ||
| 1966 | USCG Light List - Vol. I: 363 | |
| 1969-1972 | ||
| 1973-1979 | F G. G12. | |
| 1982 | ||
| 1987 | USCG Light List - Vol. I: 8500 | |
| 1990-1992 | USCG Light List - Vol. I: 8185 | |
| 1993-1996 | USCG Light List - Vol. I: 8330 | |
| 2004 |
Historical Light List Optics and Structures
| 1839 | 11 Lamps / 14" Refl. | 80 | 90 | N/A | USLHE Light List (US): 30 |
| 1849 | 13 Lamps / 15" Refl | USLHE Light List (US): 33 | |||
| 1858 | 4th | 60 | 70 | LHB Light List (US): 50 | |
| 1860 | LHB Light List (US): 43 | ||||
| 1865 | LHB Light List (All Coasts): 43 | ||||
| 1866 | |||||
| 1868 | |||||
| 1870 | Tower of wood, painted white. Dwelling, a one story wooden building, painted white, standing about 800 feet west of the tower. | LHB Light List (All Coasts): 44 | |||
| 1878 | Tower of wood, painted white. Dwelling a one-story wooden building, painted white, standing about 800 feet west of the tower. | LHB Light List (All Coasts): 54 | |||
| 1879 | Tower of iron, painted white. Dwelling a one-story wooden building, painted white, standing about 800 feet west of the tower. | ||||
| 1886 | White tower. A white dwelling stands about 800 feet W. | ||||
| 1888 | Brown tower, with white foundation, near and on finished fort. | LHB Light List (All Coasts): 56 | |||
| 1893 | 35 | 45 | Brown tower, with white foundation, near an finished fort. | LHB Light List (Atlantic): 63 | |
| 1898 | 42 | 52 | Brown tower, with white foundation, near an finished fort. Bell on small, square, brown flat-roofed building attached to light tower; white dwelling near SW. corner of unfinished fort, 320 feet E. 3/4 S. from tower. | LHB Light List (Atlantic): 71 | |
| 1899 | LHB Light List (Atlantic): 72 | ||||
| 1905 | White tower, with white foundation; bell on small, square, brown flat-roofed building attached to light tower; white dwelling near SW. corner of unfinished fort, 320 feet E. 3/4 S., and red-brick oilhouse 95 feet northwesterly from tower. | LHB Light List (Atlantic): 77 | |||
| 1908 | White tower, with white foundation; bell on small, square, brown, flat-roofed building attached to light-tower; white dwelling near SW'ly corner of unfinished fort, 320 feet E'ly and red-brick oilhouse 95 feet NW'ly from tower. | LHB Light List (Atlantic): 79 | |||
| 1915 | N/A | 47 | White; tower, attached to brown building; white foundation. | USLHS Light List (Atlantic): 93 | |
| 1917 | 48 | White tower attached to brown building; white foundation. | USLHS Light List (Atlantic): 98 | ||
| 1920 | |||||
| 1927 | White; conical tower, fog-signal house attached. | USLHS Light List (Atlantic): 102 | |||
| 1931 | 4 ei | White conical tower, fog-signal house attached. | USLHS Light List (Atlantic): 104 | ||
| 1935 | USLHS Light List (Atlantic): 108 | ||||
| 1940 | 4 e | N/A | USCG Light List (Atlantic): 123 | ||
| 1943 | USCG Light List (Atlantic): 169 | ||||
| 1945-1947 | |||||
| 1950-1952 | |||||
| 1953-1955 | N/A | White conical tower, fog signal house attached. | USCG Light List - Vol. I-VI: 227 | ||
| 1957 | |||||
| 1959-1960 | USCG Light List - Vol. I-V: 243 | ||||
| 1961 | USCG Light List - Vol. I: 243 | ||||
| 1963-1965 | |||||
| 1966 | USCG Light List - Vol. I: 363 | ||||
| 1969-1979 | |||||
| 1982 | |||||
| 1987 | USCG Light List - Vol. I: 8500 | ||||
| 1990-1992 | USCG Light List - Vol. I: 8185 | ||||
| 1993-1996 | USCG Light List - Vol. I: 8330 | ||||
| 2004 |
Historical Light List Audible Fog Signals
| 1858 | None | None | LHB Light List (US): 50 |
| 1860 | LHB Light List (US): 43 | ||
| 1865-1866 | LHB Light List (All Coasts): 43 | ||
| 1868 | |||
| 1870 | LHB Light List (All Coasts): 44 | ||
| 1878-1879 | LHB Light List (All Coasts): 54 | ||
| 1886 | Hand-bell, rung in answer to signals. | ||
| 1888 | LHB Light List (All Coasts): 56 | ||
| 1893 | LHB Light List (Atlantic): 63 | ||
| 1898 | Bell struck by machinery every 10 sec. | LHB Light List (Atlantic): 71 | |
| 1899 | LHB Light List (Atlantic): 72 | ||
| 1905 | LHB Light List (Atlantic): 77 | ||
| 1908 | Bell struck by machinery a single blow every 10 sec. | LHB Light List (Atlantic): 79 | |
| 1915 | Bell; 1 stroke every 10 sec. | USLHS Light List (Atlantic): 93 | |
| 1917 | USLHS Light List (Atlantic): 98 | ||
| 1920 | |||
| 1927 | Bell (1,200-lb.); 1 stroke every 10 sec. | USLHS Light List (Atlantic): 102 | |
| 1931 | BELL; 1 stroke every 10 sec. | USLHS Light List (Atlantic): 104 | |
| 1935 | USLHS Light List (Atlantic): 108 | ||
| 1940 | USCG Light List (Atlantic): 123 | ||
| 1943 | USCG Light List (Atlantic): 169 | ||
| 1945-1947 | |||
| 1950-1952 | |||
| 1953-1955 | BELL: 1 stroke ev 10s. | USCG Light List - Vol. I-VI: 227 | |
| 1957 | |||
| 1959-1960 | USCG Light List - Vol. I-V: 243 | ||
| 1961 | USCG Light List - Vol. I: 243 | ||
| 1963-1965 | |||
| 1966 | USCG Light List - Vol. I: 363 | ||
| 1969-1972 | |||
| 1973-1979 | HORN: 1 blast ev 10s (1sbl). | ||
| 1982 | HORN: 1 blast ev 10s (1s bl). | ||
| 1987 | HORN: 1 blast ev 10s (1s bl). | USCG Light List - Vol. I: 8500 | |
| 1990-1992 | USCG Light List - Vol. I: 8185 | ||
| 1993-1996 | USCG Light List - Vol. I: 8330 | ||
| 2004 | HORN: 1 blast ev 10s (1s bl). |
Historical Light List Other Signals
| 1927 | None | USLHS Light List (Atlantic): 102 |
| 1931 | USLHS Light List (Atlantic): 104 | |
| 1935 | USLHS Light List (Atlantic): 108 | |
| 1940 | USCG Light List (Atlantic): 123 | |
| 1943 | USCG Light List (Atlantic): 169 | |
| 1945-1947 | ||
| 1950-1952 | ||
| 1953-1955 | USCG Light List - Vol. I-VI: 227 | |
| 1957 | ||
| 1959-1960 | USCG Light List - Vol. I-V: 243 | |
| 1961 | USCG Light List - Vol. I: 243 | |
| 1963-1965 | ||
| 1966 | USCG Light List - Vol. I: 363 | |
| 1969-1979 | ||
| 1982 | RBN: 322 kHz NCE (   ). |
|
| 1987 | USCG Light List - Vol. I: 8500 | |
| 1990 | RBN: 322 kHz NCE (). |
USCG Light List - Vol. I: 8185 |
| 1991 | 322 kHz. NCE (). |
|
| 1992 | FREQ: 322 kHz. NCE (). |
|
| 1993-1995 | FREQ: 288 kHz. NCE (). |
USCG Light List - Vol. I: 8330 |
| 1996 | None | |
| 2004 |
 |
1771 - 1803 (Approximate location: 100 yards west of current 1878 lighthouse.) |
 |
1804 - Present (Exact location of current 1878 lighthouse which was built on the foundation of the 1804 lighthouse.) |