Hi, Tom
The easy way to contact a Hall member, if they also maintain membership of this forum, is to send them a PM, or personal message. Go to the HW forum members list, sort it in alphabetical order and see if their forum name is on the list. If so, click on their forum name to go to their profile, then click on "send PM."
Alternatively, when on CCH, check to see if they are online too and available for chat. Click on their name to give them a beep, and type a short message. If they reply, you're in business.
Cheers, Terry