You're welcome. Edmund Turner is the result of an automatic form filler in the computer that I did not catch until the message was sent. Sorry.
There is a diary of an officer of the 42nd Mass in the Special Collections room of the UT San Antonio Library. There is no name associated with it, but I can narrow it down to about one of three. It has a sketch of Kuhn's wharf that is not the greatest quality, but is a true war time drawing. I could email you a copy if you like.
Randy