Final answer:
Joe Rantz was the other Washington rower who was at Grand Coulee and had been the 2nd person in the varsity boat in 1935.
Step-by-step explanation:
The other Washington rower who was at Grand Coulee and had been the 2nd person in the varsity boat in 1935 was Joe Rantz. Joe Rantz was a member of the University of Washington rowing team, known as the Washington Huskies, that achieved great success during the 1930s, including winning the gold medal in rowing at the 1936 Berlin Olympics.