To answer my own question I did more searching and found the list I was thinking of... I'm including it here:
Try the Atlantis Rangers of Greenbelt MD. It may be a little far to go for meetings, but they have a website and dive all over the East Coast. They have been around for at least 27 years - I dove with them in 1976 and had a wonderful time
http://www.fred.net/tbrady/rangers/
Here is another list from the Lake Rawlings web site:
Mid-Atlantic Scuba Diving Clubs
Aquatic Explorers
Alexandria Virginia
Atlantis Rangers
Greenbelt, MD
(703) 590-1786
http://www.fred.net/tbrady/rangers
Bottoms Up Divers
Hopewell, VA
Charlotte Scuba Club
Charlotte, NC
Charm City Underwater Explorers
Baltimore, MD
Chester Dive Club
Chester, VA
Chester Dive Club, Central Virginia
Deep Sixers Dive Club
Fort Meade, MD
Delaware Underwater Swim Club
Wilmington, DE
(302) 234-3060
Jacksons Mill Divers
Jacksons Mill, WV
(304) 884-7332
fnfarm@msn.com
James Madison University Scuba Club
Harrisonburg, VA
JMU Scuba Club
Lamda Divers
Washington, DC
Nubian Divers of Charlotte
Charlotte, NC
(704) 623-2720
www.nubiandivers.com
Patowmack Divers Dive Club
Alexandria, VA
(703) 243-4855 x-110
info@dediver.com
Peninsula River Rats
Hampton, VA
(757) 864-3974
Richmond Dive Club
Rum Runner Dive Club
Winterville, NC
(252) 439-4390
rumrun@greenvillenc.com
The Hammerheads
Grafton, VA
(757) 898-4774
cwdiving@commonwealthdiving.net
The Hammerheads
Virginia Beach, VA
(757) 481-7949
ldctrv@idscuba.com
Triangle Dive Club
Research Triangle Park, NC
Tricount Diving & Rescue Club
Bel Air, MD
info@tricount.org
Underwater Adventure Seekers
Washington, DC
Undersea Explorers Club
Richmond, VA
Underwater Explorers Club
Hampton University
Hampton, VA
(757) 727-5725
VA Tech Scuba Club
Blacksburg, VA
(540) 961-2902
West Virginia Divers Association
Princeton, WV
(304) 425-8144