There is a Louisville Alumnae Panhellenic, although I don't honestly know how active they are- I don't think they do an event similar to the ones above, but I do know they have business meetings and luncheons. There is an open Facebook group called "Louisville City Panhellenic Alumnae" you may be able to post there and ask. I've reached out to 2 Sigma Kappas that have recently served as our sorority's representative for more information. If I get a response, I'll post it for you, otherwise try that fb group. If you don't get a response, feel free to PM me- I'm happy to help in any way possible!
ETA: I'm told IndianaSigKap may be our current delegate- try sending her a PM!