Governor William Richards petitions for pardon – Henderson, Lewis R., https://drive.google.com/file/d/0B_YiJoTQNoYeMHcxb1FxVWFfNEE/view?usp=drive_link&resourcekey=0-AETWY5iJX2e5HArucBuZhw. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources.

Governor William Richards petitions for pardon – Henderson, Lewis R., https://drive.google.com/file/d/0B_YiJoTQNoYeMHcxb1FxVWFfNEE/view?usp=drive_link&resourcekey=0-AETWY5iJX2e5HArucBuZhw. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources. https://wyocomet.wyo.gov/repositories/2/digital_objects/2832 Accessed November 05, 2024.