he was also an active proponent of conservation. in 2009 he and his wife gave a 160-acre hamlet known as waterloo mills, in easttown township, chester county, to the brandywine conservancy for permanent preservation. they also entrusted 200 acres near waterloo mills to the conservancy. another 35 acres, with a mansion, were given to episcopal academy for a lower school campus. initiatives supported by the william penn foundation have included grants to fairmount park in philadelphia, and the development of the delaware river waterfront.