I was pleased to receive your inquiry, and due to the late hour, will try to fill in some of the blanks tonight, and finish tomorrow.
I can tell you now:
Your dad's unit was a part of the Fifth Armored Division, which was activated 10 Oct 44, at Fort Knox, KY; trained in sequence at KY, CA, TN, NY and PA (Indiantown Gap) (These sites match your APO addresses and should explain that part of your quiry); staged at Camp Kilmer, NJ, 4 Feb 44; departed NY P/E, 11 Feb 44; (Sorry, can't ID his ship) arrived England, 23 Feb 44; arrived France-ETO, 25 July 44; entered combat, 16 July 44; on the line, 270 days.
Ardennes-Alsace, 16 Dec 44 / 25 Jan 45 Central Europe, 22 Mar 45 / 11 May 45 Normandy, 6 Jun 44 / 24 Jul 44 Northern France, 10 Sep 44 / 4 Apr 45 Rhineland, 15 Sep 44 / 21 Mar 45.
Killed in Action, 570 Wounded in Action, 2,442 Died from Wounds, 140. Approximately 30% casualties.
I will break here, and try to give you the combat narrative tomorrow, OK ?