The 1814 Martyrs' Mirrors, printed by Joseph Ehrenfried, are often found with Mennonite family records inscribed on the flyleaves. The genealogy records shown here are for the Habecker, Hershey, and Reist families. It helps if you can read German script, or you get lost in the translation. (I am mostly lost.)
The printed obituary, glued to an 1814 Martyrs' Mirror flyleaf, gives the early history of the Hershey family in Lancaster, including Benjamin Hershey and the King of Chocolate, Milton Hershey. This is the earliest-known Hershey genealogy, and it is not recorded elsewhere. Hershey genealogists have not located a newspaper in which this obituary was published, so perhaps this obituary was printed as a memorial broadside. (Click the Hershey obituary to enlarge it.)
P.S. You can blame (or credit) someone in the Reist family for that clasp repair. I'm still trying to figure out if it's mostly ugly or mostly nice.