06/15/1899
https://www.presidency.ucsb.edu...
"It is my earnest desire that you shall thoroughly investigate these charges."
"I cannot impress upon you too strongly my wish that your investigation shall be so thorough and complete that your report, when made, shall fix the responsibility for any failure or fault, by reason o..."
"The records of the War Department and the assistance of its officers shall be subject to your call."
"I put upon you no limit to the scope of your investigation."