I find much of the early half decade of Arlington State College's time as a four-year school fascinating. They entered the College Division (today's Division II) when they transitioned from the Junior College ranks. As much as I have mentioned the 1970's transition to the University Division (today's DI) and the poor execution, the mid-50's and early 1960's set the stage for an optimal transition to the higher level.
The then-Rebels were the Junior College national champions in 1956 and '57. They had an on-campus stadium that consistently sold out. The Arlington community was on board, and they attracted local talent, the only thing that was lacking was a conference home.
There's very little about how the Southland Conference was formed. What I have uncovered was the charter members, Abilene Christian College (now ACU), Arkansas State, Arlington State College, Lamar Tech (Tech has been dropped), and Trinity University met at the now demolished Baker Hotel in downtown Dallas and formed the conference. Texas A&I, now Texas A&M-Kingsville, was invited, but declined to attend.
Arlington State played ACC and Trinity quite often prior to this meeting. ASC first met both teams in 1960 and would play again every year until the conference was formed. Ironically, ASC never played the other two charter members until conference play started. Total from 1959 to disbandment in '85, Arkansas State and Lamar are the most played teams at 22. At least one game from either of those last two teams and there'd be in sole possession.