When William R. Power was a boy, he and his family spent their summers at his grandmother’s home in Long Beach, Ind. One of eight children growing up, Power cherished the peaceful summer getaway and the time it offered to spend with “Gram” Edna and other relatives. When he later had a chance to buy the home and keep it in the family, he didn’t hesitate. He became the family’s summer host, as well as their Fourth of July expert, ensuring his four children and 14 nieces and nephews …