an Entity references as follows:
Stephen Cummings Porter (April 18, 1934 – February 19, 2015) was an American geologist who taught in the department of Geological Sciences (now called the department of Earth and Space Sciences) and directed the Quaternary Research Center at the University of Washington. He was chief editor of the journal Quaternary Research from 1976 until his retirement in 2001. He died in 2015 at the age of 80.