Alex "Duke" Wellington played in six different leagues during his short career as a professional hockey player. Wellington began playing in his hometown of Port Arthur, Ontario in 1910 and spent two seasons there before moving on to a team on Canada's east coast. Wellington spent the 1912-13 campaign with the Halifax Cresents but he was back playing in Port Arthur the following year. In 1914 Wellington came to the realization that to make money as a professional hockey player, his next stop would require him to move south and play professionally in the United States.
Wellington had stops in Cleveland, Pittsburgh and New York the next three years. After his second season in New York, Wellington's career was put on hold when he missed all of the 1918-19 campaign due to suspension. After a year away he was back on the ice playing in New York when he was contacted by the National Hockey League's Quebec franchise in January of 1920.
The Quebec Bulldogs signed Wellington to a contract on January 9 and he was back in Canada shortly after. "Duke" played just one game in the NHL and was unable to crack the score sheet. Having reached the highest level of his sport, Wellington left hockey at season's end.