Sydney's sub-districts rugby (now known as the New South Wales Suburban Rugby Union or Subbies) gained its first major trophy in 1923, when W. H. Kentwell, then president of Mosman Rugby, presented the Kentwell Cup.
The Sydney suburban rugby team, now referred to as the New South Wales Suburban Rugby Union or Subbies, won its inaugural major prize in 1923, courtesy of a gift from W. H. Kentwell, who was the president of Mosman Rugby at the time, and the trophy was named after him.