Thank you for contacting History Hub with your inquiry.
We conducted a search in the National Archives online catalog for papers from William Whiting’s service as Solicitor of the War Department. There were two series located relating to your research, both of which concern cases reviewed by Whiting during his tenure from 1863-1865. Both series may be found in Record Group 107: Records of the Office of the Secretary of War, 1791-1948.
The first series, titled “Dockets of Cases Reviewed by Solicitor of the War Department William Whiting, 1863-1865,” consists of lists of cases sent to Whiting for his opinion. Each case is summarized and includes the action taken. If the opinion was relatively short, it is listed in full; otherwise, it is summarized. You can see the catalog listing for this entry here.
The second series is titled “Summaries of Cases Reviewed by Solicitor of the War Department William Whiting, 2/1863-3/1865”. These volumes register cases sent to Whiting for his opinion or advice. As in the first series, each case is briefly summarized and includes action taken. If Whiting entered an opinion on a case, it was usually entered in full. However, in most cases, he forwarded the papers to another official. The catalog entry for this series may be found here.
These records are located at the National Archives Building (Archives 1) in Washington, D.C. You can contact the reference staff at that facility via email at firstname.lastname@example.org.
We hope this information may be of use to you, and we wish you the best in your research. Thank you again for contacting History Hub!
Compiled by Christopher Burroughs, with input from Alan Walker and Michael Chornesky