Mercer Island occupies a unique geographic position situated in Lake Washington, just 15 minutes to Seattle or Bellevue, yet semirural in feel. Pioneers first settled the island in the late 1800s, surviving mainly by their own ingenuity as the island lacked even the most basic services. Wealthy Seattle residents built summer cabins on the island to enjoy its bucolic setting. With the advent of passenger and car ferry services to Seattle, Mercer Island...