Peter Scheemakers had married Barbara La Fosse but they had no children. His brother, sculptor Henry Scheemakers (c.1686-1748), had moved to Paris in the mid-1730s and both Henry's sons had also become sculptors. The elder, Peter, known as Pierre Scheemackers (c.1728-1765), remained in Paris where he became a professor at the Académie de Saint-Luc, but died shortly afterwards in 1765. Henry's younger son Thomas-Henry known as Thomas Scheemakers (c.1740-1808) left Paris to join his uncle Peter in London, leasing the workshop in Vine Street after Peter retired in 1771, and referred to at his death in 1808 as "Thomas Scheemakers of Vine Street, Statuary".
