In rechecking my later notes---after I posted the original query---I went on to ascertain that Merrit was the son of Alvah Hubbard, Sr and Mary Ann/Polly Dye, of Middletown Springs, Rutland Co, VT found in the 1850 Middletown, Rutland Co, VT census.
According to Fort Ann, Washington Co, NY vitals: Merrit Hubbard died 26 November 1893 in Fort Ann, NY
Just put together, this morning, that Matilda Hubbard is the daughter of Truman Kilburn and Elizabeth Spooner.
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