Thanks so much for your reply, the Sedgwick tree link that you posted is very extensive.
I'll update what I've found forEdward Russell Sedgewick ( 1880 - 1921) son of Russell and Charlott Abbott:
Edward Russell Sedgwick's wife was Edith Stillwell ( @ 1883 - 1965). Her parents are Daniel Stillwell and Anastasia Whalen. Anastasia died in 1887 Albany , NY - she was born in Ireland @ 1846. Daniel immediately remarried a Mary Layton who would have raised Edith.
Edith remarried a William Ellis and lived in Schenectady NY.
The children of Edward and Edith Sedgwick are :
1) George Sedgwick ( 1904 - 1978) wed Charlotte Dyer. 2) Edward R. Sedgwick Jr. may have wed an Ella ?. 3) Edith May Sedgwick first wed an Evans, then James J. Guinan. Her son was John Evans born @ 1927, Schenectady NY. 4) Charles Harold Sedgwick wed Nina Marie Loud.