didn't they cease to exist in that year?

1976 was the hottest, driest, longest summer on record. Could suggest that a lot of nobbing occured out doors. 9 months later - b3ta baby boom.
( Enigmatic ™                 Voice No More                  ©, Thu 7 Jul 2005, 22:15, archived)

and there
is our answer
( Hidden Mouse, Sleeping Kitten Gromada? Gromada!, Thu 7 Jul 2005, 22:17, archived)