Among early members of this hilltop meeting was miller William Cox of Ocassa Farm, hence the name “Hockessin,” today a community of 12,900, seventh-largest in the state. The meetinghouse walls—long white-plastered but now bare stone and recently repointed—are of billion-year-old Baltimore gneiss, which occurs in Delaware only in this vicinity. The pent hood is early but not original, which is also true for the furnishings, hardware, and exterior trim. General Charles Cornwallis's troops spent a night here in September 1777. The long carriage shed has been converted into a Sunday school. Three miles southwest stands another Quaker outpost, Mill Creek Friends Meeting House (1841), at Doe Run Road near the Pennsylvania line. That meeting was moribund in 1930–1949 but restored in 1954.