Complex sentence: When the British organisation was consolidated, Hubbard and her husband visited Spain and then moved to Camden, New Jersey to better organize US Scientology, then back to Phoenix where Quentin and then later Suzette were born.
Split into simpler sentences: When the British organization was consolidated, Hubbard and her husband visited Spain and then moved to Camden, New Jersey to better organize U.S. Scientology. Mary Hubbard and her husband later moved back to Phoenix where Quentin and Suzette were born.