Underway again nine hours later, "Anderson", again in company with "Manley", reached the submarine base at Coco Solo, Panama Canal Zone, on 21 April. Transiting the Panama Canal on 23 April, "Anderson" proceeded independently up the west coast of Central America, reaching Acapulco, Mexico, on the 27th. The next morning, following by nine hours the visit of Commander W. M. Dillon, the naval attaché at the United States Embassy in Mexico City, "Anderson" sent ashore a working party to bring off "naval stores salvaged from the wreck" of (listed in the 1941 Merchant Vessel Register as "abandoned" during the previous year). Underway again four hours later, "Anderson" rejoined "Manley" on 30 April, and reached San Diego at 0900 on 1 May 1940.