Frank Bomar was born on February 18, 1940, in Washington, D.C. He enlisted in the U.S. Navy on October 5, 1959, and completed basic training at NTC Great Lakes, Illinois, in December 1959. Bomar remained at NTC Great Lakes for Engineman A School from December 1959 to May 1960, and then served with the U.S. Navy Communication Station in Washington, D.C., from May to August 1960. He next attended the Enlisted Submarine School at Submarine Base New London, Connecticut, from August to October 1960, followed by service aboard the auxiliary submarine USS Redfish (AGSS-395) at Naval Base San Diego, California, from November 1960 to November 1962. EN3 Bomar attended Basic Underwater Demolition/SEAL training with Class 29 at NAB Coronado, California, from July to November 1962, but didn't complete the program, and returned to submarine duty aboard the submarine USS Charr (SS-328) at San Diego from November 1962 to July 1963. He briefly served aboard the submarine USS Pomfret (SS-391) at San Diego from July 1963 to June 1964, and again attended Basic Underwater Demolition/SEAL training with Class 33 at NAB Coronado from June to December 1964. ENC Bomar served with Seal Team ONE at NAB Coronado from December 1964 until he was Killed in Action in South Vietnam on December 20, 1970, having made multiple deployments to Southeast Asia in support of the Vietnam War from 1966 to 1970. He was buried at Fort Rosecrans National Cemetery in San Diego, California.

His Silver Star Citation reads:

For conspicuous gallantry and intrepidity in action while serving with friendly foreign forces engaged in armed conflict against the North Vietnamese and Viet Cong aggressors in the Mekong Delta Region of the Republic of Vietnam on the night of 18-19 July 1968. As Provincial Reconnaissance Unit (PRU) Advisor and leader of one platoon on a raid operation into an enemy controlled area, Petty Officer BOMAR distinguished himself by determine the location of the enemy and leading the PRU force across 3,000 meters of open rice paddies. When they were taken under heavy small arms and automatic weapons fire from three sides, he ordered a withdrawal to better positions to direct return fire. He radioed for artillery support while adjusting each round until direct hits on the enemy were achieved. As the enemy volume of fire began to slacken, he organized the PRU force for a further withdrawal but discovered that his Vietnamese platoon leader was missing. Whereupon he ordered his force to provide covering fire, and with complete disregard for his own safety, Petty Officer BOMAR ran across 75 meters of exposed rice paddies into the village where the platoon leader was seriously wounded. He unhesitatingly carried the platoon leader to the PRU positions. With two squads he returned to the village, found nine Viet Cong killed in action and captured several weapons and documents left behind by the fleeing enemy. By calm clear thinking, he was able to capitalize on a dangerous situation, inflicting heavy losses to the enemy. Petty Officer BOMAR's exemplary leadership, uncommon valor and professional competence were in keeping with the highest traditions of the United States Naval Service.