Darlene Shawn in the Norman [Oklahoma] Transcript says it better than I can:
Do not miss the opportunity to learn more about your ancestors by searching for their military papers. You never know what you may learn....
My ancestor Solomon L. Beaver (Bever) had remained in Ohio when he was discharged from the Union army and remarried without the benefit of divorcing his first wife who lived in Indiana with his five children. The pension papers were filled with affidavits from two women who were trying to get a pension based on Solomon's military service.
Unfortunately, my female ancestor, Mary Blair Bever had remarried before the death of Solomon so she was not entitled to a pension nor was his second unlawful wife. However, the five children by the first marriage did receive a pension from their father's service.
Someday all these papers will be digitized; meanwhile the price of ordering them recently doubled. They're still a genealogical bargain .