I came across your post tonight. Funny, because John H. Worster is also my husbands g-g-grandfather. His son Henry Leroy and then my husbands grandmother Gladys, who just celebrated her 100th birthday last week.I have just started working on this line, but I've never heard anything about him changing his name from Wentworth.However....John Henrys son, Henry, married a Wentworth. Namely, Jennie Belle Wentworth. My husbands Aunt has done lots of genealogy work,some on this family, and I never heard about an adoption.Good Luck. And I have John Henrys wife listed as Viola Rhodes.