I found a Florence Warne, died 8/13/1943 buried in Woodlawn Cemetery, Sec 58, Lot 119, Syracuse. The only problem being that particular date is not online in the Newspaper Archives. So, what I will do is go to the library tonight after work and see if they have it on microfilm for you.
I believe that Frederick remarried after Florence died as I found an obit for the widow of Frederick Warne. I'll let you know more later tonight.
If you want the addresses and phone numbers for living descendants, e-mail me and I will e-mail them back to you to respect their privacy.