Found another LeDuc-related person from the Douglas/Sutton area:
Thaden, Marjorie A.1/21/1922 - 1999. Married to Robert L. Thaden. Daughter of Anthony and Irene (LEDUC).
Marjorie was born in Manchaug, which is a village that runs into both Sutton and Douglas (while more so in Sutton).
She is survived by one brother, George of Douglas (whose wife Helen B passed away in 1981), and five sisters:Antoinette Brisson, Sylvia Horne (both of Douglas); Rita Nedoroscik (of Manchaug); Loretta Walker (of Uxbridge) and Shirley Preston (of Whitinsville).She had a brother who passed away previously, Adelard J. Ouillette.
Maybe this will prove to be of some use to you, if for nothing more than to maybe establish more recent connections.