Whitlocks Mill Light (Whitlock's Mill Light), St. Croix River, Calais, Maine
Built in 1910.
WHITLOCKS MILL LIGHT
Location: ST. CROIX RIVER SOUTH BANK 
Station Established: 1892 
Year Current Tower(s) First Lit: 1910 
Operational? YES 
Automated? YES 1969 
Deactivated: n/a 
Foundation Materials: DRESSED STONE/TIMBER 
Construction Materials: BRICK 
Tower Shape: CYLINDRICAL 
Markings/Pattern: WHITE W/BLACK LANTERN 
Relationship to Other Structure: SEPARATE 
Original Lens: FOURTH ORDER, FRESNEL 1892
Historical Information:
 - 1892 – Lighthouse built to replace lantern strapped to a tree.
- 1909 – Current tower built, 4th order Fresnel lens installed.
- 1910 – Current keeper’s house built.
- 1969 – Fresnel lens replaced by modern optic, lighthouse automated.
- 1998 – Ownership of the lighthouse transferred to the St. Croix Historical Society.
Keepers: 
 - Frank N. Jellison (1909-1920)
- Alvah Robinson (1945-1947)
- Jasper L. Cheney (1949-1957)
Researched and written by Marie Vincent, a volunteer through the Chesapeake Chapter of the U.S. Lighthouse Society.