From the Library of Congress http://memory.loc.gov/ammem/collections/sundayschool/ American Memory collection -
This collection presents 163 Sunday school books published in America between 1815 and 1865, drawn from the collections of Michigan State University Libraries and the Clarke Historical Library at Central Michigan University Libraries. They document the culture of religious instruction of youth in America during the Antebellum era. They also illustrate a number of thematic divisions that preoccupied nineteenth-century America, including sacred and secular, natural and divine, civilized and savage, rural and industrial, adult and child. Among the topics featured are history, holidays, slavery, African Americans, Native Americans, travel and missionary accounts, death and dying, poverty, temperance, immigrants, and advice.
Neat-O. And don't miss the essay link at the bottom- http://digital.lib.msu.edu/projects/ssb/?action=introessay]Shaping the Values of Youth: Sunday School Books in 19th Century America by Stephen Rachman, Department of English, Michigan State University. Food for thought.