The WW II Ranger Infantry Battalions (T/O 516 officers and EM) were all non-airborne qualified units.  With the excpetion of 8213 AU (8th Army Ranger Company), all the Ranger Infantry Companies (Airborne) activated 1950-1951 were airborne-qualified.  The T/O of the Ranger Companies was initially 110 officers and EM, aand then 105 Os and EM. 

The 1st-4th Ranger Companies were activated 28 Oct 50 (contrary to President Harry S Truman's order to desgegrate the armed forces, the initial 4th was a segregated Negro company).  For some unknown reason, the 4th and 2nd Ranger Companies switched unit identities prior to deployment to Korea. 

The 1st Ranger Company was the first in Korea, and attached to the 2nd Infantry Div 23 Dec 50. The 2nd and 4th arrived in Korea 31 Dec 50; the 3rd Ranger Company remained at Ft. Benning to train other cycles of Ranger recruits. The 2nd Ranger Compnay was attached to the 7th ID and the 4th Ranger Companny to the 1st Cavalry Div. The 3rd, 5th and 8th Ranger Companies later commenced moutain (high altitude)training at Ft. Carson, CO.  All three of these companies arrived in Korea 31 Mar 51. The 3rd was assigned to the 3rd ID; the 5th to the 25th ID; and the 8th to the 24th ID.  It should be noted that on 23 Mar 51, the 2nd and 4th Ranger Companies, in conjunction w/ the 187th RCT, made the only combat jump in Korea at Munsan-ni.

The 10th and 11th Ranger Companies were assigned to the 45th and 40th Infantry Divisons training in Japan respectively, but along with all the other Ranger companies world wide, were inactivated Aug 51, never seeing combat w/ those divisions.  Airborne members in Korea and Japan were transferred to the 187th RCT.

NOTE: None of the Ranger companies which served in Korea wore the WW II -style diamond patches, blue with yellow borders and letters RANGER with or without company numbers. There is, at this time, no corrobative evidence that ANY of the Ranger Companies activated 1950-51 (numbered 1-15 inclusive) wore those patches.  Those patches with numbers were all made in anticipation of their wear by at least one manufacturer.  The WW II black, red and white style of scroll w/ company number, or generic AIRBORNE RANGER INF CO was the preferred style. In addition to this WW II color/style scroll, the 1st Ranger Co did wear a black, yellow and white WW II style scroll.