Retired Marine Corps Lt. Gen. Reginald H. (Bo) Ridgely Jr., a former director of Marine Corps personnel and commander of Camp Pendleton, died of cardiac arrest June 28 in a Kilmarnock, Va., nursing home. He was 76.

A major in the 4th Marine Regiment in the Philippines at the outbreak of World War 11, he fought against the Japanese at Bataan and Corregidor until American forces capitulated in May 1942.

Gen. Ridgely was imprisoned in the Philippines until he and 1,600 other prisoners were loaded aboard a prison transport bound for Korea. The first two ship in which he sailed were sunk by American combat forces. A third ship finally carried him to Inchon, Korea, where he was freed a month after the Japanese surrender.

Following the war, he commanded the Fleet Marine Force in the Mediterranean and the 8th Marine Regiment. He was named director of personnel in 1952 and commander of the 2nd Marine Division in 1955. He was commanding general of Camp Pendleton, Calif., for two years before retiring in 1959, when he was promoted to lieutenant general.

Gen. Ridgely was born in Lexington, Va., and reared in Annapolis. His father was a professor at St. John's College in Annapolis. Gen. Ridgely graduated from that college in 1923 and entered the Marine Corps as a second lieutenant.

He saw duty in Nicaragua, Haiti, and the Mediterranean before joining the 4th Marine Regiment in Shanghali in June 1941. The regiment was ordered to the Philippines in November of that year.

Gen. Ridgely was a graduate of the Marine Corps Motor Transport School and the Staff and Command Course at Quantico.

His decorations included the Purple Heart and the Bronze Star with a Gold Star.

He had belonged to the Indian Creek Yacht and Country Club and the Army and Navy Club in Washington, and was a member of the Sons of the Cincinnati.

Surivivors include his wife, the former Josephine Dalton, of the home in Kilmarnock; a daughter, Johanna Cinquegrana, of Narberth, Pa,; a son, Marine Corps Lt. Col. Reginal H. 111, of Washington; a sister, Ann Wirsig, of Silver Spring, and five grandchildren. CAPTION: Picture, LT. GEN. REGINALD H. RIDGELY, 1956 Photo