The 191st Tank Battalion was organized at Fort Meade, MD, 20 Feb 41 from national guard units from NY, MASS, VA and CONN; following training, departed NY P/E, 28 Feb 43; arrived North Africa, 9 Mar 43; arrived Italy, 9 Sep 43; arrived France-ETO, 15 Aug44; arrived Hampton Roads, VA, P/E, 6 Dec 45; inactivated at Camp Patrick Henry, VA, 7 Dec 45.
24 Anzio 25 Ardennes-Alsace 26 Central Europe 29 Naples-Foggia 34 Rhineland 35 Rome-Arno 37 Southern France
I don't find a combat history for the unit while in Africa. Perhaps it was there for training, then on to Italy.
Location at War's end, 15 Aug 45: Hohenkamer, Germany.
Let me know if this fits the profile you have developed.OK ?