Article posted Wednesday, July 11, 2012 11:44am

Question: The first lighthouse on the Great Lakes was built on Rock Island in 1836. Who was its first keeper?

Last Week’s Question: The five Door County islands – Washington, Plum, Detroit, Pilot, and Rock – are a part of what island chain?

Answer: The five Door County islands are part of a chain, in recent history called The Grand Traverse Islands, and formerly called Potowatomi Islands.