Scope and Content From the Collection: This collection contains five letters written among brothers James P., T. K. and Calvin S. Gay, of South Auburn (Susquehanna County), Pennsylvania, while all were serving in the Union Army during the American Civil War. The letters are written from camps in Virginia, Pennsylvania, Tennessee, and Maryland. In three letters written to his brother Calvin between February and May, 1864, T. K. Gay, serving in the U. S. Signal Corps, recounts his unit's movement from Washington D. C....