Because if you are the warden of a national park in the 1920s, why not also tame an elk and name it Maud? And have the image of you both distributed as postcards?
For more information on the now-defunct Buffalo National Park (but sadly no more information on Warden Davison and Maud), see:
- Brower, Jennifer. Lost Tracks: Buffalo National Park, 1909-1939. Edmonton: Athabasca University Press, 2008.