There is no single volume on historic Ohio cartoonists.  Information about the six cartoonists featured in this exhibit may be found in these works: 
Coulton Waugh, The Comics (New York:  Macmillan, 1947) NC1426 .W35, reprinted in 1991 NC1426 .W35 1991
R.C. Harvey, The Art of the Funnies (Jackson : University Press of Mississippi, 1994) PN6710 .H35 1994    

Information about other Ohio cartoonists may be found in the biographical files at the Cartoon Research Library and this book: 
Drawing Attention:  Penstrokes and Perspectives from the National Cartoonists Society’s Great Lakes Chapter 
(Akron, OH : The Great Lakes Chapter, The National Cartoonists Society, c1997) NC1305 .N37 1997