I got an e-mail in response to my recent post about Levi Overholser from someone who has researched the Effingham, Springfield, & South Eastern Railroad, a line that ran through Palestine, Illinois. He said that the major subcontractor that built the line (ca. 1878-1881) was the firm of Overholser and Schafer, and that one of the partners in that company was one Levi Overholser, also known as Lee. While we can't be sure it's our Lee, there may well be something to it.
I don't know what excites me more: having another piece of the historical puzzle, or knowing that someone actually read the blog!