White, Lorraine Cook, ed. The Barbour Collection of Connecticut Town Vital Records. Vol. 1-55. Baltimore, MD, USA: Genealogical Publishing Co., 1994-2002.
But why was she Alger if she was married to Harris?
This Alger was married to Alger
But this is her again with different parents
Apparently it means former spouse William Harris.
Roger's will mentions 6 sons, and we don't have a mother. Clearly not Harris's widow.
Ancestry thinks Innes was the mother, and Brockway was the 2nd wife. In which case it was presumably Brockway who'd previously been married to Harris. Which doesn't help at all with dates.