Dear Ms Kerr,
Thank you for posting your request on History Hub!
Invalid pensions were a type of pension granted to soldiers who were disable because of their military service. The record you have indicates that the soldier received a pension for being an invalid, and that later his widow received a pension.
We suggest that you read the articles “A Reasonable Degree of Promptitude” Civil War Pension Application Processing, 1861–1885; Anatomy of a Union Civil War Pension File; and Union Pension Records.
The majority of Civil War pension files in the Records of the Department of Veterans Affairs (Record Group 15) are in the custody of the National Archives at Washington, DC - Textual Reference (RDT1). For more information about these records, please contact the National Archives at Washington, DC - Textual Reference (RDT1) at firstname.lastname@example.org.
We hope this is helpful.
The Invalid number refers to the individual filing for himself for disability.