13th Airborne Division trained airborne replacements at Fort Bragg, North Carolina from August 1943 to January 1944 and at Camp Mackall, North Carolina from January 1944 until sent to Europe in January 1945.
If he served as airborne in the Pacific Theater - and especially if he participated in campaigns in the Philippines - he'd most likely have been assigned to 11th Airborne Division or 503d Parachute Infantry Regimental Combat Team.
Unable to locate Shepherdsville, Texas - even on maps of the period. Shepherd, Texas is situated in San Jacinto County, in or near Sam Houston National Forest, but no military facility was located at or near there during the war so far as I can determine. Perhaps he served there with Civilian Conservation Corps (CCC) prior to military service?