I'm not related -
Grace worked for the telephone Co. for over 20 years.
She is an operator in the 1931 Bath Directory
In 1949, she is still an operator for NET&T and living with her mother at 10 King (Blanche is a chef)
In 1953, Grace is a supervisor with NET &T and living with her mother, brother & sister-in-law at 505 High
in 1955, Grace is still a supervisor with NET &T and still living at 505 High
looks like Blanche died by 1955.
Lloyd & Helen are living at 1 Palmer
I do find one possible marriage for a Grace M. Joy to Harold G. Brackett 2/1/1964, Bath. Looks like Harold died 5/8/1967, at age 72, Bath.
Can't find Grace after her 1964 marriage, but she was probably still living, as Harold is listed in SSDI, and back then, if you didn't have a surviving spouse, or minor children, you weren't listed in SSDI, as no death benefit would have been paid.
Grace is always shown as Miss.