The keepers at Sand Island were not as isolated from civilization as those at other Apostle Islands lights. During the years the light was staffed, Sand Island supported a small, year-round community of farmers and fishermen. The keepers and their families often walked or rowed two miles to visit neighbors and participate in social events.
In 1921, the Lighthouse Service installed an acetylene light atop the tower, designed to run without need for daily attendance. Keepers from nearby Raspberry Island kept an eye on the beacon to make sure it was operating properly, and changed the fuel tanks when they emptied.
Meanwhile, Keeper Luick moved to the lighthouse at Grand Marais, Minnesota, to finish his long career. His former home did not stay vacant long, however; for much of the 1920s and 30s, the Lighthouse Service rented the building to Gertrude Wellisch, a Minnesota schoolteacher who used it as a summer retreat. Ms Wellisch and a later tenant carried out critical maintenance and repairs, helping to preserve the historic structure.
The station's lamp was moved twice during the years of automation. The Lighthouse Service erected a 50-foot steel tower in front of the stone building some time around 1933, and placed the acetylene apparatus atop it. The beacon stood outside the lighthouse for more than half a century, but in 1985, the Coast Guard returned the signal to its historic home and removed the metal tower. Once again, the light shines from the tower in this jewel of the Apostles.