I found a marriage notice for an Earl Darley Moncrieff who married Myrtle Elizabeth Vadnais at St. Paul's Episcopal church in Syracuse in February of 1926.
She was the daughter of Mrs. Richard J. Vadnais and he the son of Mr. and Mrs. Robert Moncrieff of Kingston, Ontario, Canada.
There is also a 1930 picture of an Earl Moncrieff in a Syracuse newspaper.
Look at www.fultonhistory.com
and search for Earl Moncrieff, Earl D. Moncrieff, and Earl Darley Moncrieff, E. D. Moncrieff, etc. and you will find articles in Syracuse newspapers.