I'm a cousin of Joe Hittle's--my gggfather was Eliza Boord, brother of Elizabeth Boord Jenkins.
Like you, I am finding the Boords extremely hard to trace, but your suggestion of a connection between Boards in Ohio and George Boord in Illinois is a new thought that is most encouraging.
Like Joe, all I know is that George Boord left the Cheat River Valley at some point for, probably, Ohio, and definitely KY, Indiana, and then Illinois. I've never been able to find any connections between him and earlier Boord/Board/Borde/etc. lines. Now I can poke away at Solomon, son of Henry, and his brother Jeremiah.