Thanks Gelstay and welcome to the site. If it was Jim Ashworth who did the appointing, I think it must have been after the end of the 1990/91 season when he retired from the referees list. That being the case, we seem to be limited to 1995 and 2000 when 1st April fell on a Saturday, and certainly those years were the only ones between 1991 and 2000 when Crystal Palace played on 1st April (but accepting that fixtures involving other clubs may well have been played midweek in other years). Sorry, I cannot recall this interesting situation and cannot help further.