Have you googled them (+city and state)?

Do you know where they work?

Do you know where they live?

...

Calling directory assistance will let you know if their # is 'unlisted', or just not there.

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/showpost.php?p=831799&postcount=13
http://www.peachparts.com/shopforum/showpost.php?p=831807&postcount=14