6 Engineer Special Brigade documents.

Thanks to help from forum members I have managed to assemble a great deal of information on operations on Omaha Beach.

Concentrating on the western sector (116 RCT) I have details of naval operations, landing operations on D day and operations ashore. I would now like to obtain information on the operation of the beaches throughout June.

Can anyone help me obtain orders, instructions, diaries and reports for the following:
6 Engineer Special Brigade.
147 Engineer Combat Battalion.
149 Engineer Combat Battalion.
203 Engineer Combat Battalion.
3205 Quartermaster Service Company.
214 MP Company
7 Naval Beach Battalion.

I am afraid that I have a total lack of knowledge of US Archives and records.

Mike.