As you know, his sister & I spoke on the phone. Unfortunately, I misplaced her information (moving & reorganizing stuff) but her daughter contacted me several weeks ago. Her mom had moved (probably a good thing) and was afraid that I may have shipped a box that got returned.
I mailed a box with some of his stuff but have not heard a word as to whether it was safely received.
Robert's sister told me about his son's family and they live(d) in Charleston SC (which was where I lived till 2000!) - I spoke with Barry's widow back then.
I have just been contacted by his daughter Roberta. She sent me a picture - if you would like me to email it to you, I'd be happy to do so. I'd say it was taken in the 1990's.