Hi John E. Throop. Florence's father Stephen would have been my g-g-g uncle via his brother Charles Throop, son of Daniel Scrope Throop, b.1800. Which was you line? Charles' daughter Hester was my g-g-grandmother. Charles' second daughter, Frances Throop kept a family photo album. I have possession of it now and it has lots of unidentified photographs, many of whom I'm sure are Illinois Throops.