Complex sentence: It was built in 1907 by Robert Roe and Nellie Canfield Blacker and designed by Henry and Charles Greene, of the renowned Pasadena firm of Greene and Greene.
Split into simpler sentences: It was built in 1907 by Robert Roe and Nellie Canfield Blacker. Designed by Henry and Charles Greene, of the renowned Pasadena firm of Greene and Greene.