I found a 10-2129 JOHN FRANCIS born August 12, 1903 married June 16, 1934 at Butler New Jersey Clara Therese Snyder born 1905/6 Butler New Jersey daughter of Adam - Agnes Fritz.

Child
11-1753 Joan Marie born June 1, 1935 Midvale Twp. New Jersey

I hope this helps, the numbers are from the 1964 "The Demarest Family" genealogy book by Voorhees Demarest. If you are on Facebook, come join us at the page "Grandchildren of David and Marie Sohier desMarets", you certainly qualify as being a Demarest.

R/
Bob Demarest