The legend of the horned rabbit of the West
hcn.org
hcn.org
My sister who was maybe 6 at the time swore up and down that she saw one on the drive. We all just said "Really?!" and laughed on the inside - didn't want to kill the joke.
To this day, some twenty years later, we still like to tease her about seeing a jackalope.
Based on http://brucelarkin.com/about-bruce-larkin/ he seems like a funny guy.
https://www.wilbooks.com is apparently his main site. I bet the address there might match up with the JRI.