Original description reads: "Century Plant at North Mouth of Green Gulch. Agave scabra." Taken with Harry Linder, park clerk.
Original description simply states "Chisos Mountains." This photograph could be the one mentioned by Freeman Tilden in his 1945 article "Birth of a National Park."
Amblyomma aureum Neumann, 1899; female from original description
Dermacentor rhinocerinus (Denny, 1843), male from original description Public domain scan of drawing of insect, zoological illustration, free to use, no copyright restrictions image - Picryl description