I can tell you all about the 234th Engineer Combat Battalion. My father was in Company "C" of this unit and is still alive and well. We have been putting together information about the unit and have obtained a copy of 234th Unit History by Thomas Duggan. My father would probably be very interested in your project since his best friend was killed in action. Please contact me for additonal information.
Jay Theriault
Marion's note: Jay, have removed your email from the post. We strongly discourage posting your personal info, for it can be used and abused by bots, scammers, and spammers. All forum members can reach each other via personal messengers, so we will let Loic you directly via our forum. You can also contact him the same way by clicking on his member name, any time you are logged in.
All my best to you and your father.