This came from my mother-in-laws landscape before the estate sold the house. It was probably bought in Kansas in the mid 50's. Then taken to Missouri and finally to Oklahoma where we dug it up and brought it to Georgia. It is very tall.
You are right that the historic irises stand the test of time. However many of the irises mentioned are very difficult to find with the exception of 'Wabash and 'Sapphire Hills'. I hope that you have the listing of vendors for the older ones, but irises hybridized in the 1970s or 1980s are a good choice.