Check out my follow up number 3 to your previous post. It lists all the marriages in Darke co. (not drake) OH. for all Duvall/Devall/Duvalle/Duvoll.
It gives the marriages for all of Daniel and Alice Duvall's children except Lot. I think we might find him married in IN where he settled.
If you go by the birthdates and marriage dates most of the children were married in their early 20s. The Elizabeth Duvall married to Edwin Woodberry, Katherine Duvall married to John Clarke and Lydia Duvall married to Alfred Manuel all marry at a somewhat later date. I believe they are not part of the Daniel Duvall/Alice Hardin marriage. If this Elizabeth was Daniel's daugther she would have been 34 years old at her marriage. A little old in those days for a first marriage. The Elizabeth Duvall married to Robert Murphy fits the time line better.
And John Duvall married in 1848 is Daniel's son. This 1848 marriage was a second one.