If you are interested in primary materials, Special Collections at
the Morris Library at the University of Delaware has a fairly large
collection of coffin and casket manufacturers Trade Catalogs from the
late nineteenth to the early twentieth century. If I remember
correctly, the catalogs are mostly from East Coast manufacturers, but
few might be from Ohio? You can check the listings on the library's
website (www.lib.udel.edu) I heard that they recently copied material
for a project in California, but I don't know what the cost might
have been. Maybe they made extra copies, or wisely scanned images?
Tim Mancl, RPA
Heite Consulting
Little Creek, DE