Justice of the Peace Leonard Weer, Jr., seen here in 1916, earlier ran Thomas's Mill next door to the Madison House. He learned the trade from his father, a Brookeville millwright.

Coming from Pennsylvania in the late 1700s, Quaker Caleb Bentley did much to shape 19th-century Sandy Spring: as pioneer Brookeville merchant, and as co-founder of the Sandy Spring Store, Triadelphia, and Brookeville Academy.