Hi Dave,
Finding info on the Louisiana issue is difficult. Both SGC and PSA have pop reports that are pretty much worthless.
PSA shows "Peoples" as a 1911-16 issue, with 144 cards graded. There isn't a Wagner and none of the back are identified so we don't know if they are Kotton, Mino, or Virginia Extra's.
SGC shows them as 1914. 1 VE, Dooin is graded, along with 3 Mino's. Kotton isn't listed, but 7 Peoples card are graded, so I'm guessing they are Kottons, but who knows?
The Standard Catalog seems to have written the same basic caption, along with the same basic checklist, for all 3 of the People's issues, but no one knows which cards are really in existence for Mino and VE's.
Lew Lipsett gives a pretty good explanation of the set, but once again, Lew doesn't seem to know which cards have been found.
Dave's Vintage Cards has a good selection of Kotton's and Mino's for sale.
https://www.gfg.com/baseball/nuaquire.shtml
BTW, the grading companies haven't done a great job identifying some of the other Louisiana issues, such as Weil Baking and Coupons.
Wish I could be more help!
Rick