At first it was just in the land records that he was acting as trustee for someone in a land deal. Then as I went through the newspaper abstracts I started to learn more about him.
Here's what I have found out so far (from the University of Maryland Library website), with more research to come: Frederick Stone was born February 7, 1820, in Charles County, Maryland. He was the only son of Frederick D. and Eliza Stone. His paternal grandfather was the Maryland judge and lawyer Michael Jenifer Stone. Frederick Stone began his career in Charles County as a lawyer; he was later elected to Congress in 1868 and reelected in 1870. He served as senior defense counsel in the trial of Dr. Samuel A. Mudd, who was convicted as a member of the John Wilkes Booth conspiracy to assassinate President Abraham Lincoln. Stone was a member of the defense team of David E. Harold, another convicted co-conspirator. Stone also served in the Maryland State Legislature from 1864 to 1865 and from 1871 to 1873 as well as a judge on the Maryland Court of Appeals from 1881 to 1890. When not in a position of public service, he continued to practice law at Port Tobacco in Charles County. Maryland law in 1890 stated that judges could not serve past seventy years old, but Stone was a sufficiently well-respected judge that a number of people lobbied on his behalf in the Maryland legislature to have the law changed to allow him to continue to serve. This measure was defeated, and Stone was forced to retire.
The University of Maryland Library has a collection of papers belonging to Frederick Stone, mostly to his wife, Jennie, and his daughters.
There is also a copy of an oral history interview between John Wearmouth and Colonel Frederick Stone Matthews, the grandson of Frederick Stone and son of his daughter Jennie Stone Matthews. It contains information about Stone family genealogy and life in Charles County and Port Tobacco in the early nineteenth century. Also included is a discussion of Frederick Stone's involvement in the Lincoln assassination trials and race relations in Charles County.
At some point, we will be producing more detailed 'biographies' of the citizens of Port Tobacco, which will lead us to reading and sorting through collections of papers and oral histories such as this one and others.