Just in case you ever wondered how hard it must have been to be a lightkeeper in the early years? Portland Head Light... probably Maine's most photographed lighthouse... was built in 1791 and originally lit with 16 whale oil lamps. How would you have liked to climb those stairs continually to refill the lamps? Not me. A fresnel lens wasn't installed until 1864. That's a lot of whale oil and steps.
photo courtesy of the Portland Head Light Photo Gallery