John Correy Mervine 1845-1920 Photos courtesy of James Mervine John Correy Mervine - Civil War He served during the Civil War in Co. E of the 28th Regiment PA Volunteers from 6/18/1863 to 7/28/1863. He then enlisted in the 18th Regiment of the 7th PA Cavalry from 2/17/1864 to 8/23/1865.    Search Family