Hybridizer Meyer-M is listed as Michele Meyer, Gemini Garden in Lynchburg, Ohio. The image in the ATP database is noted as taken in the Osman Garden. The date of 7/12 (and the sign in the background) would place this as possibly being seen during or near the time of the 2012 AHS National. You can read a bit about the garden here on Nikki Schmith's blog....
http://www.agirlandhergarden.c...
Nothing concrete about locating the daylily for purchase, but a few leads that might help.