doi:10.7916/n4v0-yd49Reminiscences of Crawford H. Greenewalt, 1974Greenewalt, Crawford H., 1902-1993oral historiestextGardens--PennsylvaniaGreenewalt, Crawford H., 1902-1993Du Pont, Pierre S. (Pierre Samuel), 1870-1954Longwood Gardens (Kennett Square, Pa.)Financial support for Longwood Gardens: Pierre du Pont's philosophy toward the Gardens; expansion and building under the direction of Pierre du Pont: attitude toward employees and the public; anecdotes