Came across these articles from the Washington Post printed in the 1920's. The both cover the exploits of Freddie Fretwell, both as a motorcycle racer and the owner of a 30 lbs monkey which would ride on his motorcycle. Not much historical value, but something humorous to think about...
Freddie Fretwell and his Harley Riding Monkey
Freddie Fretwell and his Harley Riding Monkey