Tarzan the Mighty 1928

Synopsis:

Mary and Bobby Trevor are castaways befriended by Tarzan. When Lord arrives, looking for the family heir, Black John tries to fill that role and marry Mary in England. Tarzan shows up and marries her instead.

Directed by: Ray Taylor & Jack Nelson
Written by: Ian McClosky Heath
Cast:
Frank Merrill
Frank Merrill
Tarzan 
Al Ferguson
Al Ferguson
Black John 
Natalie Kingston
Natalie Kingston
Mary Trevor 
Bobby Nelson
Bobby Nelson
Bobby Trevor 
Lorimer Johnston
Lorimer Johnston
Lord Greystoke