Mark E. Crosby, 20, of East Eddington died December 20, 1974 of injuries sustained in an automobile accident at Brewer.  He was born in Bangor, January 16, 1953, son of Harold D. and Donna (Morrill) Crosby.  He was a resident of Eddington for the past five years and had attained the rank of Eagle Scout in Eddington Troop 13.  He graduated from Brewer High School in 1971 and was currently serving with the U. S. Navy in Philadelphia.  Survivors are his mother, Mrs. Donna Forsythe, Bangor; father, Harold D. Crosby; four brothers, Manly R. Crosby, III; Harold D. Crosby, Jr.; Brett E. Crosby; and Bart D. Crosby, all of Eddington; three sisters, Mrs. Ruth Simmons, Bangor; Connie E. Crosby and Terri A. Crosby, both of Eddington; maternal grandmother, Mrs. Joseph Morrill , Bangor; step-mother, Marjorie H. Crosby, Eddington; maternal step-grandparents, Mr. & Mrs. Harold G. Drake, Eddington; several aunts, uncles and cousins. Funeral services will be held Saturday at 2 p.m. at the East Eddington Community Church with the Rev. David W. Smith officiating. Burial will be in Blackman Cemetery, Eddington. Friends may call at the Lawrence V. Kiley Funeral Home, 69 State St., Brewer, Friday from 3-5 and 7-9 p.m.