71st SUBMARINE ANNIVERSARY CELEBRATION   Cake-cutting ceremony in the Crew's Mess in honor of the 71st Anniversary of the United States Submarine Force, April, 1971.   Left to Right: HMC Lester A. Westervelt (the oldest crewman aboard the Menhaden), CDR Les Guille (Commanding Officer), and FA Richard Allen Erlenmeyer (the youngest crewman).