The list exists in the sipb cell
(/afs/sipb/admin/text/member-addresses/addresses.txt).  Some of the
addresses are from as far back as 1970.  The stuff from the Alumni
Association (as mentioned above) should in most cases supplant what's in
the file (though there are a few exceptions).  The list from the Alumni
Association will be the people they currently have listed under "SIPB",
which may be the 1989 list from the 20th anniversary.  John isn't sure
he'll be able to get the rest of the addresses in time to do us much
good, but those are more recent people who are more likely to be
reachable by email anyway.