First, a Pennsylvania couple restore an 18th-century house and find a Revolutionary-era cannonball from its old iron-forge days and glass bottles from dairy days. Next, a Chicago woman discovers that her house was once the office of Thomas A. Dorsey, the man some consider to be the father of gospel music. Then, a Florida couple restores a dilapidated 1907 Victorian, which was once the home of a popular teacher. Several items that once belonged to the teacher were found in the attic.