I am also related to William Bearden and Hannah Cooley via their son Benjamin J. Bearden.
I don't recall coming across Martha Bearden and John Cooley, but will check my files. It would be quite a coincidence if they were not related.

I'd be happy to share what I have regarding the Bearden's and I know there are a couple of others on this board related to the same line.

Feel free to reach me at cbroch3@comcast.net