MHS Open Access Policy: You are welcome to download and utilize any digital file that the Missouri Historical believes is likely in the public domain or is free of other known restrictions. This content is available free of charge and may be used without seeking permission from the Missouri Historical Society.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.