BEAVER ISLAND, Mich.—An 11-year-old is the only survivor of a plane crash on Michigan’s Beaver Island, authorities said Sunday. The four adults on the plane died. They were the pilot, a real estate agent, and a couple who were planning to open a winery and vineyard there, authorities confirmed. The plane crashed Saturday west of Mackinaw City, killing four of the five people on board. Lt. William Church of the Charlevoix County Sheriff’s Office identified three of the deceased as Kate Leese and Adam Kendall of Beaver Island, and Mike Perdue of Gaylord. Authorities have not released the name of the pilot. Perdue’s 11-year-old daughter was seriously injured in the crash and remained hospitalized Sunday. Perdue was a real estate agent, Church told WZZM-TV. Leese and Kendall had moved to Beaver Island after spending years traveling. They had been planning to open Antho Vineyards, a winery and tasting room, on the …