The origins of this trophy are not known. Before the introduction of Senior Reserve in the late 1970ties, this trophy was for the second highest grade in North Otago, the Junior Grade. Union first won the J Dell cup in 1921-22. All records of winners where lost as the original trophy was lost 5 years ago, so as a result all records on the website are some, possibly not all of the years Union has won the J Dell Cup.(April 2010)