Table:
text: World Sculling Championship
Results
Results
YEAR_ DATE_ CHAMPION BEAT TIME_ COURSE
1831 Sep 9th Charles Campbell John Williams NTT Thames (Westminster to Hammersmith)
1838 Nov 1st Charles Campbell Robert Coombes 42mins Thames (Westminster to Putney)
1846 Aug 19th Robert Coombes Charles Campbell 26mins 15secs Thames (Putney to Mortlake)
1847 Sep 19th Robert Coombes Robert Newell 23 mins 46 sec Thames (Putney to Mortlake)
1851 May 7 Robert Coombes Thomas J MacKinney 27 mins 30 secs Thames (Putney to Mortlake)
1852 May 24 Tom Cole Robert Coombes 25 mins 15 secs Thames (Putney to Mortlake)
1852 Oct 14th Tom Cole Robert Coombes 23 mins 35 secs Thames (Putney to Mortlake)

text: World Sculling Championship
Results
Results
YEAR_ DATE_ CHAMPION BEAT TIME_ COURSE
1932 Sep 5th Ted Phelps (GBR) Major Goodsell (USA) 17 mins 2 secs Long Beach, California
1933 Sep 1st Henry Bobby Pearce (CAN) Ted Phelps (GBR) 19 mins 26 secs Lake Ontario,
1934 Sep 5th Henry Bobby Pearce (CAN) W G Miller (USA) 19 mins 52 secs Toronto
1938 Sep 9th Henry Bobby Pearce (CAN) Evans Paddon (AUS) 20 mins 35 secs Tornoto
1948 Nov 20th Evans Paddon (AUS) Max Fisher (AUS) 17 mins 20 secs Parramatta, Sydney
1949 May 7 George Cook (AUS) Evans Paddon (AUS) 15mins 09 secs Evans River
1950 April 22 Evans Paddon (AUS) George Cook (AUS) 21mins 58 secs Evans River

Question: What year was Robert Coombes champion in the World Sculling Championship on May 7th?