1. Samuel David Gross: the lesson of his life and labors : a eulogy pronounced at the eighty-fifth annual commencement of the Jefferson Medical College of Philadelphia, June 6th, 1910 Author(s): Keen, William W. (William Williams), 1837-1932 Publication: Philadelphia : [publisher not identified], 1910 Subject(s): PhysiciansPhiladelphiaGross, Samuel D. (Samuel David), 1805-1884.