The 61st Division of the Philippine Army was an infantry division from the 1930s to 1942. In late 1941, there were two regular and ten reserve divisions in the Army of the Philippines, with about 100,000 to 300,000 active troops and officers in the general headquarters, camps in Manila and across the provinces of the Philippines. Among them were the under Colonel William F. Sharp in the southern islands (61st, 81st, and 101st Infantry Divisions plus three other infantry regiments), and the Reserve Force.