When Ray and Donna fly to Emporia, Kansas to attend his dad Amos's (played by William Windom in Season 4) funeral, it's his Aunt Lil who informs him both of his cousin, her delinquent son Mickey, whom she has been having a really hard time controlling, as she allows Ray to take him on as a ranch hand at Southfork, as she also tells him that Jock Ewing is his biological dad, not her brother Amos.