There's a birth record listed in the "Maine, Births and Christenings, 1739-1900" at familysearch: https://familysearch.org/pal:/MM9.1.1/F49Y-QKS
Fred V. DOUCETTE born 24-Sept-1882 in Grand Isle, ME.Father:Vital DOUCETTE.Mother:Susanne THERRIAULT.
I think they might be the family listed in the 1900 census for Grand Isle as DAUSEH: Vital b. Oct 1840 in ME, married 38 yrs, both parents b. ME wife Suzanne b. Oct 1844 in ME, 12 children born, 4 children living, both parents b. ME son Herbert b. May 1881 son Fred b. Sept 1883
There is a birth record for a son, Hubert, b. 24-May-1881 in Grand Isle to Vital DOUCETTE and Susanne THERRIAULT.There was also a daughter named Azethe b. 1-Mar-1876.