Benjamin Waterhouse. Manuscript note on verso indicates that this is from a portrait by Guilbert Stuart. From Dr. Henry Barton Jacobs, September 19, 1935, Pleadwell.
Ridlon, on left, sitting with his arm on the back of his chair, with another man on the right leaning on a small table. On verso "Dr. Ridlon and Dr. Weatherson resting, after the day's work".