Union troops were headquartered at a ranch on the eastern end of the pass that was owned by a Polish immigrant named Kozlowski. You can read more about him and his ranch here.
The Confederate base was at Johnson's ranch, located at the western mouth of the canyon.
Pigeon's ranch was owed by a French immigrant whose very name is a matter of speculation. Some records list him as Alexander Pigeon. Some sources, however, say that Pigeon was a nickname he received because he strutted and flapped his elbows when he danced, making him look rather like a pigeon. On some documents, he is named Alexander Valle. Some historians suggest that Valle is less a surname as a placename given to him because his establishment was in the center of the valley. Both Pigeon and Valle are names that can be found in France, so either may be the man's actual name.
The Worst Enemy i is scheduled to be published by Kinkajou Press on August 15, 2023 but can be preordered at Bookshop.org.