The Syracuse library (downtown) has a number of obits indexed on the 5th floor. I am sure there are a few there.
Since I don't make it downtown too often I make use of the Syracuse directories which we have at work (Syracuse University library). Many times they will list a death date for a person and then I can look them up in the newspapers.
I took a quick look thru a couple:
1920 Syracuse directory
Egan, Bertha married Joseph Howard
Egan, George T. died 29FEB1920 age 63
Egan, Alice R. died 23NOV1919 age 25 (town of Onondaga)
1919 Syracuse directory
Egan, Bartholomew died France 29SEP1918 age 22
Egan, Ethel L. married Walter Nolden
Egan, Ettilbert J. moved to Detroit, Mich.
Egan, Laura C. married ??
Do any of these look promising? If so, I can look for their obits or marriage records. I will also take alook thru some others.