Hi Folks--thanks for all the suggestions!

I visited Mom and Dad for Mother's day today and brought over some tools,

* I started with a blacklight at 365 nm wavelength and got nothing
* per my cousin's idea, I tried a nightvision security camera--BTW Wyze makes a killer pan/tilt/nightvision and daylight camera for $37 at Homedepot. Cheaper one for $25 without the pan/tilt
Boom--the board came to life, see below:



I had the room dark and was looking at the images it picked up with my blackberry, and gave the phone to The Rib and told her to give it to Dad. Had to tell her 3 times because she was captivated by the images. She gave it to my dad and between him and mom they spent the next 2 hours recounting the family history this unlocked!

Taylor was the name of the man that my great Aunt was married to at the time (died of TB a Loooong time ago) and his two sons were Walter and William. Dad thinks the initials were what was on the shed, so Walter and William Taylor--painted on there by their father Frank Taylor. The sign was painted to advertise the business and everybody knew the business was selling arsenic to kill the boll weevils.

new mystery is this marking, which Dad doesn't know anything about. It seems to be a C, but might be a special symbol. The building was a store for Arsenic to dust on cotton to kill the boll weevils. Not sure the connection. If anyone has an idea, let me know what this symbol might mean.



Thanks for your help and all your ideas!

Phil '83