Complex sentence: In 1948 Douglas served on the Coconut Grove Slum Clearance Committee, with a friend of hers named Elizabeth Virrick, who was horrified to learn that no running water or sewers were connected to the racially segregated part of Coconut Grove that was called "Colored Town".
Split into simpler sentences: In 1948 Douglas served on the Coconut Grove Slum Clearance Committee, with a friend of hers named Elizabeth Virrick. Virrick was horrified to learn that there was no running water or sewers connected to a part of the Coconut Grove that was called "Colored Town".