A second important cluster of Woodward projects occurs where Lincoln Drive crosses W. Willow Grove Avenue. Here Gilchrist, who learned Wilson Eyre Jr.'s delicate aesthetic, created the brick town house group known as Linden Court (1915). He continued modulating his palette of materials around the corner at Crefeld Street from brick to stucco and brick, to stucco and stone, and then to houses completely of stone, tracing a reverse evolution from Georgian to Cotswold. Gilchrist's traditional English Cotswold–style house for E. Digby Baltzell at 101 W. Springfield Avenue was an independent commission that may have contributed to the hierarchical worldview of his son, University of Pennsylvania sociology professor of the same name, whose Philadelphia Gentlemen (1958) and Puritan Boston and Quaker Philadelphia (1979) argued that cultures were shaped by the goals and interests of their elites.