The Collection consists mostly of correspondence between members of the Dillenback family during the Civil War period. Additional correspondence includes items relative to post war business dealings by Jackson Dillenback.

Various writings by Jackson and publications by his Publication Companies are included in the collection.

Memorabilia such as a scrap book of newspaper clippings, a geneology of the family, Civil War service history, and various ribbons collected from Civil War reunions fill out the collection.