Born in Dayton, Ohio to Major General Franklin and Clara Carroll. Preceded in death by brother Franklin, and sister Kathleen. Survived by wife Edie, son Michael, (Caroline), daughter Lisa, (Henning III), grandchildren Andrew, Alexandra, Henning IV, and Anna, nephews, nieces. Pat received his Aeronautical degree from Purdue University
, Masters degree from Cal Tech. Retired as 1st Lt. USAF 1951. Married Edie in 1952. Retired from Martin Marietta, and was a member of Grace Presbyterian Church. Per Patrick's wishes, a private family memorial to be held at a later date with interment at Ft. Logan.