This began his 31+ year Naval career in which he served his country with distinction at many military installations and ships worldwide.CAPT Mackin served honorably for more than 31 years. He retired from the Navy following his tour as CO, NSGA Homestead in 1991. During his career, he was assigned to DEFSMAC, CINCPACFLT, Ops officer NSGA Homestead, USS OXFORD, (AGTR-1) during Vietnam, COMNAVSECGRU, Army Security Agency, CINCLANTFLT, NCR Taiwan, Senior Navy Exec to DIRNSA, Deputy NSA B-Group, Chief NSA B1, JOCCP Lead, and CO, NSGA Homestead. Throughout his career, he displayed excellence in the field of National Security and Cryptologic operations, but it was also unabiding love of our country, sense of duty and commitment to teamwork that made him the highly respected officer and leader. He advanced to the rank of Captain and retired in 1991 after serving as Commanding Officer, Naval Security Group Activity, Homestead, FL. John then relocated to the Orlando Area, while serving as a Group Vice President for SunTrust Corporation.
John is survived by his wife of 48 years Donna J. Mackin; their three children, John M. (Beth) Mackin, Jill N. (Matthew) D'Amico, Jeffrey N. (Donna) Mackin; nine grandchildren; and his brother James E. Mackin. Services and burial with full military honors will be held at Arlington National Cemetery at a date to be determined. Contributions in his memory may be made to Cornerstone Hospice of Osceola County. Arrangements under the direction of Osceola Memory Gardens Funeral Home, 2000 13th Street, St. Cloud, FL. www.osceolamemgds.com for online condolences. 407-957-2511.