John Copley (1875-1950) was an artist born in Manchester, England. He was married to French painter, etcher, and lithographer Ethel Gabain.
Resource Cited:
Getty Online - Union List of Artist Names Online
http://www.getty.edu/vow/ULANFullDisplay?find=john+Copley&role=&nation=&prev_page=1&subjectid=500009729
A black and white lithograph titled "Horses Turning into the Canter." Signed by the artist.