Fitz John Porter
Reverdy Johnson (May 21, 1796February 10, 1876) was a statesman and jurist from Maryland. He gained fame as a defense attorney, defending notables such as Sandford of the Dred Scott case, Maj. Gen. Fitz John Porter at his court-martial, and Mary Surratt, alleged conspirator in the assassination of Abraham Lincoln. A former Whig, he was a strong supporter of the Union war effort. At first he opposed wartime efforts to abolish slavery until 1864, and in 1865 supported the 13th Amendment banning slavery.