This player's recording debut as a trombonist may have been in 1980 on the second album by the Southroad Connection, an idea that neither connected nor led anywhere commercially. After that, there are credits for his "horn" on funky sessions through the decade, which might just mean someone on the production staff didn't know what a trombone was, or that he could have been playing an alto horn, a French horn, or perhaps a rhinoceros horn. Astute bandleader Lonnie Liston Smith would have known the difference, but perhaps he was not allowed to edit the liner notes on his cosmic edicts from the '80s.
On whatever horn this Louis Barbarin blew, he should not be confused with the drummer of the same name, whose career began prior to the '20s. That Louis Barbarin was still active in 1982, true, but there is no evidence that he switched to brass instruments and went off to record numbers such as "Floating Through Space" and "Give Peace a Chance (Make Love)". From the sound of this, it might have indeed been something the proud, traditional New Orleans Barbarin family might have wanted to cover up. In reality, this younger horn-playing Barbarin doesn't come up at all in any information about the New Orleans family, nor in connection to any of the recording artists he played with. The latter is a strong indication that this was a studio musician who may have other unidentified recording credits still out there.