On 21 September 1959 "Robert F. Keller" decommissioned and was placed "in service" assigned to Naval Reserve training in Baltimore, Maryland, under the Commandant, 5th Naval District. She recommissioned pm 2 October 1961 incident to the Berlin Crisis and was manned by reserves, steaming in the Atlantic and Caribbean during the rest of the year. She again decommissioned and was placed "in service" as a Naval Reserve training ship of the 5th Naval District on 1 August 1962.