Looking for Curtis of Vermont Quebec

Henry C. Curtis b: 1861 in VT. D: 1898 Island Pond, Essex Co., VT

Father: FREEMAN CURTIS b: 1828 - Quebec
Mother: Amelia b: 1830 - USA
Brother: David b: 1859 - VT
Sisters:
Lucy b: 1863 - VT
Matilda b: 1864 - VT
Melissa b: 1867 - VT
Melinda b: 1869 - VT

Freeman Curtis may have gone by the name of Francis while living in the USA.

1881 Canadian Census - Hatley, Stanstead, Quebec.

Henry married Mary Boutin in Quebec and returned to Vermont in 1892. Henry died in 1898.

1900 census - Island Pond, Essex Co., VT Mary Curtis is living with her children. I can't find Mary after that I'm assuming she died as some of her children were living together in 1910, Island Pond, VT and she isn't listed.

Henry and Mary's children:
Leslie Albert - 1887 Quebec
George Phillip - 1889 Quebec
Olive - 1890 - Quebec
Charles A. - 1894 Vermont
May E. - 1897 Vermont
Henry - 1898 Vermont