You may be interested in these books and articles, the first concerning Rock Island, the others relating to Missionary Ridge and the Florida Brigade --

http://www.amazon.com/Rebels-Rock-Island-Story-Prison/dp/0875802672

http://www.amazon.com/Shipwreck-Their-Hopes-Battles-Chattanooga/dp/0252019229

http://www.geocities.com/rodent70/html/1stmission.html

http://www.thebriarpatch.com/wbts/havis/ridge.html

You may already have copies of Haney's military service file. If not, you may order a set here --

You will note the line held by Finley's Florida Brigade just north of the Moore House.