Over the last couple months I have been emailing zoos throughout the country to ask about the breeding status of their elephants. After zoos confirming the following elephant are infertile. They are:
1.0 Groucho (Wild × Wild) 1970-00-00 (Denver Zoo)
1.0 Sneezy (Wild × Wild) 1971-00-00 (Tulsa Zoo)
0.1 Maharani (Bandara × Kamala) 1990-07-14 (Smithsonian National Zoo)
0.1 Kirina (Indy × Romani) 1995-06-20
Also I reached out to an old Ringling Brothers Circus Elephant Trainer who still keeps up with the herd and he informed me that 0.1 Shirley (Vance × Mala) 1995-02-19 passed away I am not sure when though. He unfortunately said that he did not know the four bulls that are currently at White Oak.
That's very interesting, as I don't believe males can actually become infertile. Both Groucho and Sneezy have sired multiple calves before - Groucho last did nine years ago, prior to his transfer to Denver. I also remember they were working with Groucho for AI a few years back, so it's fascinating he's been deemed 'infertile' now. It might be another way for the facility to say they won't be breeding from them going forward.
Maharani makes sense as she hasn't conceived in a decade now; and Kirina hasn't at all, despite being now 27 years of age.