File:Billbrennan cartoon.jpg

After New York won the 1913 pennant, Giant pitcher and cartoonist Al Demaree featured Brennan in one of his nationally syndicated cartoons.

From: http://baseballhistorydaily.com/2013/07/10/bill-brennan-versus-philadelphia/

The two-dimensional work of art depicted in this image is in the public domain in the United States, either because it was first published before 1929, or for the reason described either above or below this template. This photograph of the work is also in the public domain in the United States (see Bridgeman Art Library v. Corel Corp.).
Note: Unless the creator died more than 70 years ago, the work of art is not public domain worldwide.