The New York detachment would be the first chartered at the "All Marine Caucus" under the national organization's new name as New York Detachment No. 1, thus making it the League's oldest continuous detachment. Colonel George C. Reid continued as the detachment commandant. After the conclusion of the caucus, other detachments began to organize. Buffalo, New York was the second and Newark, New Jersey the third. Other detachments quickly followed in the east and midwest. By 1928, detachments reached to the west coast. The second national convention was held in Washington, DC, the third in Philadelphia, the fourth in Cleveland and the fifth in Erie, Pennsylvania. LeJeune remained as national commandant until 1929, when Maj. Gen. Wendell C. Neville succeeded him as Marine Corps Commandant. LeJeune then appointed Neville as the National Commandant of the Marine Corps League for the duration of his term until the next national convention in St. Louis, MO in 1930. At the St. Louis convention, W. Karl Lations of Worcester, Massachusetts was elected the first civilian commandant of the League.
