Paula,
Richard J. Fulfer wrote a regimental history of the 24th.The title is "A History of the Trials and Hardships of the Twenty Fourth Indiana Volunteer Infantry" published in 1913 by Indianapolis Printing Company. The Library of Congress does have it on Microfilm- Call number 87/7109(E).
You might check a dealer that specializes in CW books. Check this site once in a while-
http://www.civilwarindiana.com/books/books_antiquarian.htmlThe book is valued at 250-300 dollars in good condition.
Mark Davis