The Thomas Gilkes who helped to provide the land for the meeting house had a son of the same name who became a clockmaker in Sibford Gower. He trained his son – a third Thomas Gilkes (1704–57) – in the same trade. This Gilkes established his own clockmaking business in Charlbury, and was reputed also to be an eminent Quaker minister. He was succeeded by his son, a fourth Thomas Gilkes (1740–75). A number of longcase clocks made by the two men still exist.