UPDATE: Thanks to Bud [aka Howard] and Joy for this data below:
1st generation John H. Wilcox and Rosalinda (Babcock) Wilcox [earliest]
2nd generation Elizabeth Wilcox [first] married to Jabez Chambers who was killed in an accident while chopping wood. When he felled a tree, one of the branches got hung up and later fell on him. [second] married Pascal Phineas [P.P.] Hartwell born probably at Rome, New York [NY], 4 March 1844. He married, as her second husband, Elizabeth C. Chambers.
3rd generation [first marriage] Emma Chambers. [second marriage] John H. Hartwell, born 20 May 1880, etc.