BANGOR DAILY NEWS Tuesday, June 20, 1972  Peter L. Willette,19, of Holden, died June 19 from injuries received in an automobile accident in Dedham early Monday morning.  He was born in Bangor, Jan 30, 1953, the son of Joseph and Patricia (Arsenault) Willette. He attended Brewer High School and was a resident of Holden for the past six years.  Survivors include: his parents of Holden; four brothers, David J., Timothy J., Kevin P., and Vincent M., all of Holden; a sister, Denise A., of Holden; maternal grand-parents, Mr. and Mrs. Vincent F. Arsenault, Bangor.  A Mass of the Resurrection will be celebrated Wednesday at 10 a.m. in St. Joseph's Catholic Church, Brewer.  Friends may call Tuesday at the Lawrence V. Kiley Funeral Home, 69 State street, Brewer.