OK it is a streatch but bear with me. . . .
No Attakapas wasn't associated with sports, (They did write about UL sports) sports teams didn't have a nickname monicker til 1922. Up to that time the mascots were often rotatiing kids of faculty members.
However, one of the SLII literary societies took it upon themselves to be called the Attakapas. The weekly column in the paper was called the Attakapasian, and was printed for less than a year starting in February of 1903 until The Vermilion came on line in December of 1903. Columns then continued for a while (I think a few years) in the Vemilion.