O'Malley completed the Air Command and Staff College at Maxwell Air Force Base, Alabama, and concurrently earned a master's degree in business administration from The George Washington University, Washington, D.C., in 1965, and graduated from the Naval War College, Newport, Rhode Island, in 1970.

From July 1970 to April 1971, he was director of operations for the 67th Tactical Reconnaissance Wing, Mountain Home Air Force Base, Idaho, and flew RF-4Cs.

In September 1971 he was assigned as vice commander of the 432d Tactical Reconnaissance Wing, Udorn Royal Thai Air Force Base, Thailand.

He was then assigned as assistant deputy chief of staff for plans at SAC headquarters, Offutt Air Force Base, from July 1974 to June 1975, when he was named deputy chief of staff for operations plans.

General O'Malley died on April 20, 1985, with his wife Diane when the CT-39 Sabreliner they were in experienced hydraulic failure at the Wilkes-Barre Scranton International Airport.

His military decorations and awards included: This article incorporates public domain material from the United States Air Force