There are several sites that might be able of some help, especially this one:
https://utahyouthrugby.sportngin.com/register/form/574416532
By the way, there are two basic forms of Rugby: Rugby 'League' and Rugby 'Union'.
BYU and most of America plays Rugby 'Union'. That might be one of the reasons why you had problems before if you Googled "Rugby League".