Oh, BTW, Carolyn--
I noticed that all the sellers (the few there are) print the same story, that it was introduced in 1927 by the Oriental Seed Co. of San Francisco.
I actually found it in a 1919 catalog from that company. Now, I personally don't care about a difference of a few years, but I figure the folks at SSE are interested in accurate history. And I bet all the other folks selling it got it from someone at SSE at some point, which is probably why everyone quotes the 1927 introduction date.
Link:
1919 Annual catalog of oriental novelties, Oriental Seed Co. Kikuza (and a few other squash) are on page 6.
I figured you might want to know and that, if interested in updating the history, you would know best how to do that/whom to contact.