Adm. Howard Loyo.
Howard Loyo was a naval officer in the armed forces of the United States of Mexico. Loyo was the admiral commanding the Mexican Third Fleet in 1890 during the outbreak of the War for Salvation between Mexico and New Granada. Admiral Loyo's forces captured the New Granadan port of Santa Marta on 4 March and landed the 34th Marine Brigade under Colonel David Brewster. Brewster then began to march on the New Granadan capital of Bogotá, which he captured on 8 June.
Admiral Loyo does not have an entry in Sobel's index. He is mentioned on page 219 of For Want of a Nail ....
Sobel's sources for Howard Loyo's role in the War for Salvation is John Earley's A History of the New Granada Expedition (New York, 1914); and Miguel Olin's El Jefe's War for Salvation (New York, 1956).