Edward Powell

Edward Powell was the adoptive parent of Homer's half-brother Herbert "Herb" Powell. He married Mililani Powell, who gave birth to three daughters Coco, Wanda and Carla Powell. They adopted Herb because they could not have a boy.

Location
They most likely used to live in Shelbyville as Herb was adopted from Shelbyville Orphanage.

Trivia

 * His name is on the obituaries board in the World of Springfield Retirement Castle playset.