I checked the NYS index of marriages. In 1942, I found no record for Charles (or Frederick) Roberts. I found a Lillian Carroll, marriage in Suffern, Westchester Co. on Aug. 23, 1942. No record for a Lillian Duley. The index does not include NYC. The 5 counties are Kings, Queens, New York, Richmond (Staten Island) and Bronx. If the bride was from Dannemora, they may have gone to Canada.