I have a book in my possession from an Inter-Library Loan pertaining to the 138th Engineer Combat Battalion Unit History. As such, I am willing to post information from the book on the forum by request. Since the book is not Copyrighted, I can scan pages and send as attachment files. I will have the book until 2-10-2014. The book: 138th Engineer Battalion A History (March 1944 - October 1946) was compiled by John W. Hammersmith and came from the Clarke Engineer School Library, For Leonard Wood, MO 6573-5000.
The book basically contains information from After Action Report No. 2 for 1-30 April 1945, Company B History, a name index, history and company contributions from the Drag Line, miscellaneous group pictures with names, chronology of evens.
Hope this helps someone in a small way,
John