OOB needed for 7th Armored Division

[Armored Inferno]

Okay, check this out. You can go to a document repository on the site that Huib mentioned:
http://www.7tharmddiv.org/docrep/

There is a shortcut to hack the URL to get the year/month of AAR that you want too. Check this:
http://www.7tharmddiv.org/docrep/N-7AD-AAR-44-12.doc

The above link will download the AAR doc for Dec 1944. If you wanted October '44, you'd change it to be this:
http://www.7tharmddiv.org/docrep/N-7AD-AAR-44-10.doc

In the december doc above, it actually gives details such as this (sorry, too much work to separate each line of each column!)

CCA CCB DIV. TROOPS
48th Arm'd Inf. Bn. 23rd Arm'd Inf. Bn. 203 AAA Bn.(-)
A/33rd Arm'd Engr. Bn. 31st Tk. Bn. 814 TD BN, (-)
D/87th Cav Rcn.Sq. B/33rd Arm'd Inf. Bn. 33rd Arm'd Engr. Bn. (-)
B/87th Cav.Rcn.Sq. 87th Cav.Rcn.Sq.
D/203rd AAA Bn.
C/814th TD Bn.
1/B/814 TD Bn.
1/Rcn/814 TD Bn.

CCR
38th Arm'd Inf.Bn. DIV. TRAINS
40th Tk "B" 129th Ord. Maint. Bn.(-)
C/33rd Arm'd Engr. Bn. 77th Med.Bn.Arm'd. (-)
Ord. Det. 446 QM Tr. Co. (-)
Med. Det. 3967 QM Tr.Tn. Co. (-)
B/203 AAA Bn.

Division Artillery was under XIII Corps control. It consisted of:
434th Arm'd F.A. Bn.
440th Arm'd F.A. Bn.
489th Arm'd F.A. Bn.
A and C/203 AAA. Bn.