"To clarify, the Lawrence on Swallow is important mainly for the later Swallow recordings. His Khoury stuff sounds better on the Cajun Honky Tonk CDs."
I agree. Cajun Honky Tonk 1 and 2 on Arhoolie have the better sounding Lawrence Walker Khoury sides. I think the La Louisianne lp has the best sounding version of Unlucky Waltz on La Louisianne LL-126, A Tribute to the Late, Great Lawrence Walker.
For accordion-minded fans, there's another good Arhoolie compilation, Pioneers of Cajun Accordion 1929-1936, subtitled Louisiana Cajun Music Vol. 9. Has Joe Falcon, Amede Ardoin, Breaux Brothers, Angelas LeJeune, Lawrence Walker, Nathan Abshire with the Happy Fats band, Delin Guillory, Bixy Guidry. OT 128