I’m always happy to see pictures of Calvin Coolidge, especially ones showing him with his family. There are several sources of historical pictures, maybe chief among the Library of Congress. The Forbes Library in Northampton, with its Calvin Coolidge Presidential Library & Museum has a choice collection of hi-res pictures, one of which I’m posting here; it shows Coolidge helping his son Calvin Jr. build a go-kart (or is it the other way around?). The picture is dated July of 1920 and was taken at the longtime Coolidge home on Massasoit Street in Northampton, Mass.
(click image to enlarge)