Could someone help me indentify the unit of the guy in the pic?

Also, any guidance about reference material on the specific uniform he wears would be greatly appreciated

Regards
Fernando
This serviceman most likely is a para of the US 17th Abn. during Operation Varsity or a period after. He has a helmet the most typical for Varsity -- fixed bale and with a cord around the net. He wears the Coat, Parachute Jumper P.Q.D. No. 114 (incorrectly called by collectors and reenactors "M1942"). Majority of the 17th paras jumped behind the Rhine with M1943 Field Jackets but not all of them. Big number of the 17th paras still jumped then with the P.Q.D. No. 114s. He also has M1910 E-Tool shortened a little in a manner typical for the US WWII era paras.