Dumpling Rock (Massachusetts)
Historical Light List Characteristics
| 1839 | F W. | USLHE Light List (US): 65 |
| 1849 | F W. W14. | USLHE Light List (US): 68 |
| 1858 | F W. W12. | LHB Light List (US): 104 |
| 1860 | LHB Light List (US): 92 | |
| 1865-1866 | LHB Light List (All Coasts): 92 | |
| 1868 | LHB Light List (All Coasts): 93 | |
| 1870 | LHB Light List (All Coasts): 96 | |
| 1878-1879 | LHB Light List (All Coasts): 120 | |
| 1886 | F W. W113/4. | LHB Light List (All Coasts): 122 |
| 1888 | LHB Light List (All Coasts): 125 | |
| 1893 | F W. W121/4. | LHB Light List (Atlantic): 136 |
| 1898 | F WR. W121/4, R121/4. Red sector between NE. 1/2 N. and NE. 3/4 E. | LHB Light List (Atlantic): 165 |
| 1899 | LHB Light List (Atlantic): 169 | |
| 1905 | LHB Light List (Atlantic): 183 | |
| 1908 | LHB Light List (Atlantic): 195 | |
| 1915 | F WR. W12, R12. R027°-043°(16°), W043°-027°(344°). | USLHS Light List (Atlantic): 247 |
| 1917 | USLHS Light List (Atlantic): 255 | |
| 1920 | USLHS Light List (Atlantic): 262 | |
| 1927 | USLHS Light List (Atlantic): 260 | |
| 1931 | USLHS Light List (Atlantic): 304 | |
| 1935 | USLHS Light List (Atlantic): 332 | |
| 1940 | USCG Light List (Atlantic): 330 | |
| 1943 | Fl G 6s. G13. fl 1. | USCG Light List (Atlantic): 412 |
| 1945-1946 | ||
| 1947 | Fl G 6s. G11. fl 1. | |
| 1950-1952 | ||
| 1953-1955 | USCG Light List - Vol. I-VI: 433 | |
| 1957 | Fl G 6s. G12. fl 1. | |
| 1959-1960 | USCG Light List - Vol. I-V: 471 | |
| 1961 | USCG Light List - Vol. I: 471 | |
| 1963-1965 | ||
| 1966 | USCG Light List - Vol. I: 632 | |
| 1969-1972 | Fl G 6s. G13. fl 1. | |
| 1973-1979 | Fl G 6s. G8. | |
| 1982 | ||
| 1987 | USCG Light List - Vol. I: 14915 | |
| 1990-1992 | USCG Light List - Vol. I: 14690 | |
| 1993-1996 | USCG Light List - Vol. I: 16040 | |
| 2004 |
Historical Light List Optics and Structures
| 1839 | 10 Lamps / 14" Refl. | 12 | 43 | Lantern on keeper's dwel'g. | USLHE Light List (US): 65 |
| 1849 | 26 | Lantern on keeper's dwelling. | USLHE Light List (US): 68 | ||
| 1858 | 5th | 33 | 42 | Light on keeper's dwelling. | LHB Light List (US): 104 |
| 1860 | LHB Light List (US): 92 | ||||
| 1865-1866 | Light on keeper's dwelling. Lantern black. | LHB Light List (All Coasts): 92 | |||
| 1868 | LHB Light List (All Coasts): 93 | ||||
| 1870 | LHB Light List (All Coasts): 96 | ||||
| 1878-1879 | Light on keeper's two-story white dwelling. The bell-tower is located 60 feet south of the light-house. | LHB Light List (All Coasts): 120 | |||
| 1886 | Black lantern on white dwelling. Bell-tower 60 S. of light-house. | LHB Light List (All Coasts): 122 | |||
| 1888 | LHB Light List (All Coasts): 125 | ||||
| 1893 | 35 | 48 | Black lantern on white frame tower attached to NE. corner of white frame dwelling. Bell tower about 100 feet S. of light-house. | LHB Light List (Atlantic): 136 | |
| 1898 | Black lantern on white frame tower attached to NE. corner of white frame dwelling. White fog-signal house 85 feet and bell tower about 100 feet S. of light-house. | LHB Light List (Atlantic): 165 | |||
| 1899 | LHB Light List (Atlantic): 169 | ||||
| 1905 | Black lantern on white frame tower attached to northeasterly corner of white frame dwelling. White fog-signal house 85 feet and red-brick oilhouse 110 feet southerly of light-house. Timber bulkhead of easterly side of rock, outside of buildings. | LHB Light List (Atlantic): 183 | |||
| 1908 | Black lantern on white frame tower attached to NE'ly corner of white frame dwelling; white fog-signal house 85 feet and white, brick oilhouse 110 feet S'ly of light-house; timber bulkhead of E'ly side of rock, outside of buildings. | LHB Light List (Atlantic): 195 | |||
| 1915 | N/A | 40 | White; tower attached to corner of dwelling. | USLHS Light List (Atlantic): 247 | |
| 1917 | USLHS Light List (Atlantic): 255 | ||||
| 1920 | USLHS Light List (Atlantic): 262 | ||||
| 1927 | USLHS Light List (Atlantic): 260 | ||||
| 1931 | 4 iov | White tower attached to corner of dwelling. | USLHS Light List (Atlantic): 304 | ||
| 1935 | USLHS Light List (Atlantic): 332 | ||||
| 1940 | N/A | USCG Light List (Atlantic): 330 | |||
| 1943 | 300 mm e | N/A | 52 | Skeleton tower. | USCG Light List (Atlantic): 412 |
| 1945-1947 | |||||
| 1950-1952 | |||||
| 1953-1955 | N/A | USCG Light List - Vol. I-VI: 433 | |||
| 1957 | |||||
| 1959-1960 | USCG Light List - Vol. I-V: 471 | ||||
| 1961 | USCG Light List - Vol. I: 471 | ||||
| 1963-1965 | |||||
| 1966 | USCG Light List - Vol. I: 632 | ||||
| 1969-1979 | |||||
| 1982 | SG on skeleton tower. | ||||
| 1987 | USCG Light List - Vol. I: 14915 | ||||
| 1990-1992 | USCG Light List - Vol. I: 14690 | ||||
| 1993-1996 | USCG Light List - Vol. I: 16040 | ||||
| 2004 |
Historical Light List Audible Fog Signals
| 1858 | None | None | LHB Light List (US): 104 |
| 1860 | LHB Light List (US): 92 | ||
| 1865-1866 | LHB Light List (All Coasts): 92 | ||
| 1868 | LHB Light List (All Coasts): 93 | ||
| 1870 | LHB Light List (All Coasts): 96 | ||
| 1878-1879 | A bell, struck by machinery, giving 2 blows in quick succession, alternately with a single blow, at intervals of 30 seconds. | LHB Light List (All Coasts): 120 | |
| 1886 | Bell struck by machinery, alternately a double and single blow, with intervals of 30 sec. | LHB Light List (All Coasts): 122 | |
| 1888 | LHB Light List (All Coasts): 125 | ||
| 1893 | Bell struck by machinery, alternately a single and double blow, with intervals of 30 sec. | LHB Light List (Atlantic): 136 | |
| 1898 | 2nd-class Daboll trumpet; blasts 3 sec., silent intervals 12 sec. | If trumpet be disabled, a bell will be struck by hand. | LHB Light List (Atlantic): 165 |
| 1899 | LHB Light List (Atlantic): 169 | ||
| 1905 | 1st-class Daboll trumpet; blasts 3 sec., silent intervals 12 sec. | If trumpet be disabled a bell will be struck by hand. | LHB Light List (Atlantic): 183 |
| 1908 | LHB Light List (Atlantic): 195 | ||
| 1915 | 1st-cl. reed horn: blast 3 sec., silent 12 sec. | Bell (hand) if horn be disabled. | USLHS Light List (Atlantic): 247 |
| 1917 | USLHS Light List (Atlantic): 255 | ||
| 1920 | None | USLHS Light List (Atlantic): 262 | |
| 1927 | USLHS Light List (Atlantic): 260 | ||
| 1931 | HORN, 1st-cl. reed: blast 3 sec., silent 12 sec. | USLHS Light List (Atlantic): 304 | |
| 1935 | USLHS Light List (Atlantic): 332 | ||
| 1940 | USCG Light List (Atlantic): 330 | ||
| 1943 | BELL, electric; 1 stroke every 15 sec. | USCG Light List (Atlantic): 412 | |
| 1945-1947 | |||
| 1950-1952 | SIREN, electric; blast 4 sec., silent 26 sec. | ||
| 1953-1955 | SIREN: 1 blast ev 30s (4sbl). | USCG Light List - Vol. I-VI: 433 | |
| 1957 | None | ||
| 1959-1960 | USCG Light List - Vol. I-V: 471 | ||
| 1961 | USCG Light List - Vol. I: 471 | ||
| 1963-1965 | |||
| 1966 | USCG Light List - Vol. I: 632 | ||
| 1969-1979 | |||
| 1982 | |||
| 1987 | USCG Light List - Vol. I: 14915 | ||
| 1990-1992 | USCG Light List - Vol. I: 14690 | ||
| 1993-1996 | USCG Light List - Vol. I: 16040 | ||
| 2004 |
 |
1828 - Present (Exact location of current 1942 modern light. Locations of previous lights were at the same location.) |