Oxford's final season at the Manor Ground was one of the worst in their history.
Horton left the Manor Ground for an even bigger challenge in August 1993.
United moved to the stadium in 2001 after leaving the Manor Ground, their home for 76 years.
Fleming scored two goals in 75 league games during his spell at the Manor Ground.
Simpson is the second player to leave the Manor Ground since the club was put up for sale eleven weeks ago.
The club was previously based at The Manor Ground.
He scored 15 goals in 90 league games during his time at the Manor Ground.
The Manor Ground has since been demolished and a private hospital built on the site.
Purse impressed at the Manor Ground, and scored six goals in 35 games in 1997-98.
These are nervous times down at the Manor Ground.