 Ricketts retired from active service on January 3, 1867, due to disability from wounds received in battle, and served on various courts-martial until January 1869.He was placed on the retired list as a major general in the regular army, to rank from January 3, 1867, the date of his retirement.Never in good health due to his chest wound suffered while serving in the Shenandoah Valley, after Ricketts retired from the army, he lived in Washington, D.C. for the rest of his life.