A traveling circus included side shows. Some of those side shows featured overweight people, such as the individual pictured in this photo.
Originally published in the Chicago Herald & Examiner, this pictures is now part of a collection at the Wisconsin Historical Society, where it is described as follows:
Title: Circus Fat Man
Description: A circus sideshow performer sits outside a tent talking with a young girl and what is most likely a woman who is a dwarf.
Click on the image for a better view.
Image online, courtesy Wisconsin Historical Society. LICENSE: CC BY-SA 3.0.