Complex sentence: The Air Force transferred Ellington AFB to Continental Air Command effective 1 April 1958 and navigator training was reassigned to Mather AFB, California and James Connally AFB, Texas.
Split into simpler sentences: The Air Force transferred Ellington AFB to Continental Air Command effective 1 April 1958. Navigator training was reassigned to Mather AFB and to James Connally AFB, Texas.