Mount Desert Rock is one of the most isolated and desolate places ever used for a lighthouse. Located off the shore of Maine, twenty-six miles from the nearest harbor, the rocky islet is only 600 yards long and 200 yards wide, and its highest point is only twenty feet above the sea at low tide. During storms, the entire island is submerged by the waves. It was a true test of endurance to be a keeper there.
Machias Seal Island, ME A steam fog-whistle, the most powerful one then on the Bay of Fundy, was established on Machias Seal Island in 1873, with James Ackroyd as its engineer. The following year brought an end to John Conley’s thirty-plus years of service on the island, along with the much shorter service of James Ackroyd and his replacement J.H. Crosby, who resigned after just six months because his family was unwilling to reside on the island.