You may already know this information but I'll post anyway.
Ellen Murphy married a George H Thomas about 1925. They had one son--Walter G Thomas b 9 Dec 1925--d 1 Nov 2005. They are on the 1930 Census for Schenectady County.

Here is a website to try www.fultonhistory.com Search in quotes--selecting--all of the words--don't check anything below the search line. Search as I have them

"Ralph Garfield"
#53 ?? Maybe connects if Ralph remarried
#55 Public Notice-1922
#56 Birth of Robert
_____________________
"Robert Garfield"
#50 Marriage ?? may connect
_____________________
"Robert O Garfield"
#1 Obit
_______________________
"Robert * Garfield"
#111 Obit for George H Thomas-husband of Ellen Murphy and step-father to Robert
[make sure you put the * between the names]

Kathy