Fellow Toc H member, Robert de Roop, was likely a source for their interest in the Work ideas. The influence of Ouspensky is indesputable; his and Collin's approaches seem inseparable.
Robert de Roop, a fellow Toc H member, likely contributed to the group's interest in the Work ideas. Ouspensky's influence on their approach is undeniable, and his and Collin's methods are closely linked.