The maps in the handout were from the Civil War Trust, with their permission for use on the course. Their website is here. http://www.civilwar.org and you can download coloured versions of the maps from their website. The website also has an interactive animated map of the battle and 360 degree views of the battlefield.
FREE HISTORIC SOURCES
Both sides used Hardee’s Tactics The link allows you to download a copy of a Confederate edition of this guide to battalion and regimental level drills. You can explore how these work using the tutorial in the free demonstration version of the computer game “The Scourge of war” The full game is a very detailed model of combat of the time, but the tutorial allows you to see your units operated, and as a bonus has a detailed terrain model of the battlefield North and West of Gettysburg.