The Rev. John Wingert of Cazenovia, N.Y., has been called as interim rector of St. John’s Episcopal Church, 225 French St. He will serve while the parish searches for a successor for the Rev. Kevin Holsapple, who resigned this fall to become rector of St. Anne’s Episcopal Church, Crystal River, Fla. Wingert was born in Maryland, but has lived for years in upstate New York. His ministry in Bangor begins Sunday.