David CorcoranDavid Corcoran is a former Australian rules football umpire who umpired in the Australian Football League.Umpiring careerWAFLCorcoran began his senior umpiring career with the West Australian Football League where he umpired his first league match in 1998. Corcoran umpired 115 WAFL league matches between 1998 and 2004 including four WAFL Grand Finals.AFLCorcoran joined the AFL list in 2001. He umpired 31 AFL matches up to May 2003 when his contract was terminated by the AFL.