Egg Rock (Massachusetts)
Historical Light List Characteristics
| 1858 | F R. R8. | LHB Light List (US): 61 |
| 1860 | LHB Light List (US): 54 | |
| 1865-1866 | LHB Light List (All Coasts): 54 | |
| 1868 | ||
| 1870 | F R. R12. | LHB Light List (All Coasts): 57 |
| 1878-1879 | LHB Light List (All Coasts): 74 | |
| 1886 | F R. R123/4. | LHB Light List (All Coasts): 75 |
| 1888 | F R. R81/2. | LHB Light List (All Coasts): 77 |
| 1893 | LHB Light List (Atlantic): 85 | |
| 1898 | LHB Light List (Atlantic): 96 | |
| 1899 | LHB Light List (Atlantic): 98 | |
| 1905 | LHB Light List (Atlantic): 101 | |
| 1908 | LHB Light List (Atlantic): 105 | |
| 1915 | F R. R7. | USLHS Light List (Atlantic): 119 |
| 1917 | USLHS Light List (Atlantic): 126 | |
| 1920 | Fl W 3s. W12. fl 0.3. | USLHS Light List (Atlantic): 127 |
Historical Light List Optics and Structures
| 1858 | 5th | 25 | 87 | Light on keeper's dwelling. | LHB Light List (US): 61 |
| 1860 | LHB Light List (US): 54 | ||||
| 1865-1866 | LHB Light List (All Coasts): 54 | ||||
| 1868 | |||||
| 1870 | LHB Light List (All Coasts): 57 | ||||
| 1878-1879 | Light on keeper's dwelling. House, white; lantern, black, on top of one and a half story white dwelling. | LHB Light List (All Coasts): 74 | |||
| 1886 | Black lantern, on top of white dwelling. | LHB Light List (All Coasts): 75 | |||
| 1888 | LHB Light List (All Coasts): 77 | ||||
| 1893 | 21 | 853/4 | Black lantern, on white dwelling. | LHB Light List (Atlantic): 85 | |
| 1898 | 32 | 90 | Black lantern, on square, pyramidal, red brick tower, attached to white wooden dwelling. | LHB Light List (Atlantic): 96 | |
| 1899 | Black lantern and square gallery, on square, pyramidal, red brick tower, attached to white wooden dwelling. | LHB Light List (Atlantic): 98 | |||
| 1905 | Black lantern and square galley, on square, pyramidal, white brick tower, attached to white wooden dwelling. White wooden building about 270 feet westerly of dwelling. | LHB Light List (Atlantic): 101 | |||
| 1908 | Black lantern and square galley, on square, pyramidal, white, brick tower, attached to white wooden dwelling; white wooden building about 270 feet W'ly of dwelling; gray framework landing and white boathouse on W'ly side of island. | LHB Light List (Atlantic): 105 | |||
| 1915 | N/A | 37 | White; square, pyramidal tower; attached to dwelling. | USLHS Light List (Atlantic): 119 | |
| 1917 | USLHS Light List (Atlantic): 126 | ||||
| 1920 | USLHS Light List (Atlantic): 127 |
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1856 - 1921 (Approximate location: light list coordinates are not very accurate.) |