Old Hickory Academy (now known as USJ) was a member of the MPSA at one time, as were Tennessee Academy (Brownsville), Rosemark Academy, SBEC, and some others. Of course, Tennessee Academy is no longer in operation, and SBEC's orginal school complex was located in Tennessee. Rossville Christian Academy (located in the southwestern corner of Fayette County) is still a member of the MPSA.
Some of the teams that Fayette played were Marshall Academy (Holly Springs), Magnolia Heights (Senatobia), Lee Academy (Clarksdale), Kirk Academy (Grenada), and others. Travel did become somewhat of a problem, and traveling time and cost was one of the main reasons that F.A. made the decision to join the TSSAA.
Fayette Academy has been existence for 40 years, and has always been called Fayette Academy.
Good luck to both teams tonight.
Some links of possible interest:
MPSA
Fayette Academy