Complex sentence: Edna Kimbro became very interested in preserving examples of early California History, sold The Branciforte Adobe and moved on to restore and study The Castro Adobe, a two story adobe in the Watsonville area which was built in the mid 1800s.
Split into simpler sentences: Edna Kimbro became very interested in preserving examples of early California History. She sold the Branciforte Adobe and moved on to restore the Castro Adobe, a two story adobe in the Watsonville area which was built in the mid 1800s.