Oscar Griswold was born in the United States in 1886. He joined the United States Army and led the XIV Corps that fought at Guadalcana. This was followed by containing Japanese troops in New Georgia.

In January 1945 Griswold led the XIV Corps in the invasion of the Philippines. His troops were involved in bitter fighting at Clark Field and Manila before he took Luzon.

Oscar Griswold died in 1954.