This is a picture that NOOT http://rickynoot.blogspot.com/ posted on his blog.
It states that the fellow in the picture is Fred Hamm of Pasadena, California"The Iron Man" of long distance riding records. 1936 Knucklehead EL (61 cu. in.)1825 miles in 24 hours (record set in 1937).
Thanks Mr.Noot....Checkout his blog lots of neat stuff.