 In 1740, Quaker businessman Samuel Morris bought a one-half interest in the mill, and bought the remaining half interest after Farmar's death in 1746.During the period of 1743 and 1748, Morris was building his country mansion "Whitemarsh Estate" (later known as Hope Lodge) a mere stone's throw from Farmar's Mill.After Morris' death in 1770, his brother Joshua sold the mill and of land to Isaac Mather, whose son Joseph built the present mill in 1820.