15th president - assumed presidency when Osuna was drafted into service. Elected at the 1943 convention. Served one term plus four months.
Modesto was born in El Paso, Texas on November 1985. He attended the El Paso public schools and St. Edward's College. He was a veteran of World War I serving with the 90th Division as a sergeant in artillery and participated in the major offensive of 1917 and 1918. After his term of duty, he returned to El Paso and became a salesman in the wholesale grocery business and after a few years, he established his own wholesale grocery enterprise.
Modesto was a charter member of LULAC Council 8, organized in 1931. He was very active in LULAC until 1945. Illness forced him to give up social and civic duties. He was the organizer general during the administration of Filemon T. Martinez.
He assumed the office of LULAC National President when Ben Osuna entered the Armed Services in 1942. He kept in contact with the LULAC Councils, during those war years, and thus was able to keep the organization alive.