This direction may have some possibilities:
In the Brooklyn Daily Eagle of Nov 1, 1914 it shows a Miss Rose COURQUIN and Harry BUTLER among the many guests at the wedding of a Clara Johnson and John Olsen
New York City Marriage index
Butler Harry G. and Courguvin Rose E., married Feb 14 1915, cert # 4879, Manhattan
BUTLER, HARRY (1920 U.S. Census)
NEW YORK , NEW YORK, MANHATTAN
Age: 28, Male, Race: WHITE, Born: ENGL
occupation: silver buffer, immigrated 1910
wife: Rose, 28, born England, immigrated 1907
NARA Series: T625 Roll: 1211 Page: 69
ED 1018, sheet # 10A, address: 334 East 67th Street
My note: if this was her, then clearly she was fibbing about her age.
I am not related.