After one day at the Family History Library in Salt Lake City, I've already found the answer to one question "left over" from my Switzer research!
As noted in the post Not One, Not Two, Not Three, but Four of Them! (about half way through the post) there was a question regarding which Jacob Switzer was the owner of 80 acres in the W ½ of the SW ¼ of R2 T12 S16 in Fairfield Township, Columbiana County, Ohio.
The answer came in a deed record (volume 64 page 397 of FHL film 926962) in which Isaac Switzer and Christiana his wife, Benjamin Switzer and Lidia Ann his wife, Levi Switzer and Hannah his wife, Peter Keck and Delia Ann his wife, James Crooks and Eliza his wife, Anna Switzer and Sophia Switzer of the county of Columbiana sold the parcel “containing 72 acres of land owned and lately occupied by Jacob Switzer deceased” to Christian Kiser for $3420 on April 6, 1860.
So now we know that this land belonged to Switzer Family Number 4 :: Jacob G. and Catharina and not to “my” Jacob. In addition, it confirms the names of his heirs and provides the names of the spouses of the married children, which would be nice for anyone researching this particular family!