While he was at Harvard, his passion for ornithology flourished; he birded with noted ornithologists Ludlow Griscom, William H. (Bill) Drury, Wendell Taber, Allan Cruickshank, Chandler Robbins, Charles Foster Batchelder and others in the Nuttall Ornithological Club.
Ludlow | Ludlow Massacre | Ludlow, California | Ludlow (UK Parliament constituency) | Ludlow, Massachusetts | Ludlow Castle | Edmund Ludlow | Clement Griscom | Roger Ludlow | Ludlow, Vermont | Ludlow railway station | John Ludlow (theologian) | Fitz Hugh Ludlow | Peter Ludlow | North Ludlow Beamish | ''Mother and Daughter'' (Mrs. Clement Griscom and Frances C. Griscom) by Cecilia Beaux | Martin Ludlow | Ludlow Porch | Ludlow, Pennsylvania | Ludlow Griscom | Louis Ludlow | John Malcolm Forbes Ludlow | Fitz Hugh Ludlow Memorial Library | Ethelbert Ludlow Dudley |