Jim, I am confused. You listed Ebenezer-2 as being born in 1726 in Woburn, MA.
You said he married #1 Mary Smith date unk with 9 children (including Ebenezer-3 born in Stow in 1763).
Then you said he married #2 Elizabeth Blake in 1729. Was 1729 a typo?
Were all of the Ebenezer and Mary Knight children listed in Stow MA Vital Records (born between 1757-1763) the children of Ebenezer Knight and wife #1 Mary Smith?
Was this Ebenezer Knight in Stoneham MA 1746-1754? There are children listed in Stoneham Vital Records whose parents are listed as being Ebenezer and Mary Knight.
Helen Greenslit Graves