GDG- Day 1 Tour Suggestions

[Alan D. Brunelle]

I'll be heading to the 'burg at the end of June, and my 17 year old son 
asked if we could spend a day touring Day 1 sites. I have James E. 
Thomas' "The First Day at Gettysburg - A Walking Tour" (Thomas 
Publications) and was wondering if there were any other  "tour" type 
books associated with Day 1 to help out. I'll be packing either Pfanz or 
Martin's book on Day 1, and Gottfried's Maps book to help us while out 
there.

And, of course, any suggestions for out-of-the-normal stuff to check out 
would be most appreciated as well.

Thanks in advance,
Alan