For MGM they made TARZAN FINDS A SON (1938)
which introduced "Boy" to the series.
"Boy" was played by Johnny Sheffield and was hand picked
Weissmuller himself during casting. Sheffield went on to play
in the "Bomba" series once he was too old to play "Boy" any longer.
MGM also released TARZAN'S SECRET TREASURE (1941)
TARZAN'S NEW YORK ADVENTURE (1942)
with this endearing cast of Weissmuller, O'Sullivan and Sheffield.
Moments before Tarzan dives from the George Washington Bridge,
to avoid capture and begin his search for "Boy".
.. others are concerned .. but Jane is not worried for Tarzan ..
That scary cab ride through Brooklyn, N.Y. (promo)
"All's Well, That Ends Well."
Weissmuller and Sheffied would however carry on without her.