Governor William Richards petitions for pardon – Breene, Thomas J., https://drive.google.com/file/d/0B_YiJoTQNoYeWlc5QngwbE4xLTg/view?usp=drive_link&resourcekey=0-phtwh4MJ20_PetshTIhS5Q. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources.

Governor William Richards petitions for pardon – Breene, Thomas J., https://drive.google.com/file/d/0B_YiJoTQNoYeWlc5QngwbE4xLTg/view?usp=drive_link&resourcekey=0-phtwh4MJ20_PetshTIhS5Q. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources. https://wyocomet.wyo.gov/repositories/2/digital_objects/2787 Accessed November 22, 2024.