Yes, no issues here

Yes, an elevator is available

Yes! And Association of Retired People and Triple A.

There are a tremendous number of mounts in both the marine and mammal museums and I imagine most people (other than maybe locals) pay very little attention to the taxidermist name and simply focus their attention on the mount itself. It has been some time now since I visited the Buckhorn, but, I do remember some of the more outstanding and unusual mounts and photographed a few. Unless you can be more specific in your description, I doubt any visitor will be able to assist you. However, I would think the curator of the museums would have records of from who and what they received and placed on display. May I suggest you contact the Buckhorn Saloon and speak with the curator, giving as much detail as possible, such as your grandfather's name, his company's name, his address at the time. You say you visited the museum when you were a kid, so, make a close a guess as to your age when you visited, thereby determining the calendar year of your visit. Then create a bracket of time, say five years prior and five years post visit and provide this time frame to the curator as well. Remember, he/she is not required to provide this information, so, be very polite and offer to do your best to provide any additional information he/she may indicate that would help him/her locate the information you desire. SECOND. I have no idea as to your age, so, I will consider that you have older relatives, friends and or business associates of your grandfather that you know and or can discover. Search them out and ask them, check old newspaper archives for articles and advertisements for reference to the exhibit. It would be highly unusual for someone to have their work exhibited in the Buckhorn Saloon Museum and not brag about it to his friends, business associates, customers, as well as, use it in advertising his business. I sure hope this helps you. I would love it if you could see fit to let me know the results of your search. If I can assist further, please let me know.