George Grenfell migrated from Penzance, England to Boston, Massachusetts.
Col George Grenfell served in the United States Civil War. Enlisted: 1862 Mustered out: 1864 Side: CSA Regiment(s): Florida
George Grenfell is Notable.
George St Leger Grenfell was born in London on May 30 1808 the son of George Bevil Granville Grenfell. He was brought up in Penzance and then sent to the family's business of banking and metal dealing in Holland and France.
Marriage and Children
He married Hortense on the 21st of September 1833 in Paris, France. They had three daughters 
Involvement in the Civil War
He came to America in 1862 and became an officer in the Confederate States Army, serving with cavalryman John Hunt Morgan, General Braxton Bragg, and General J.E.B. Stuart. He resigned from the Confederate Army in 1864 to join a plot to take over the governments of Ohio, Indiana, and Illinois and establish a Northwestern Confederacy. When the plan to take over Chicago was discovered, Grenfell and some 150 others were arrested. In what became known as the "Chicago Conspiracy", Grenfell was tried, convicted, and sentenced to hang.
"London, England, King's Bench and Fleet Prison Discharge Books and Prisoner Lists, 1734-1862," database with images, Ancestry (Prisoner List on Ancestry$ : accessed 2 January 2018), entry for George St Leger Grenfell, 27 Sep 1846; citing King's (Queen's) Bench, Fleet, Marshalsea and Queen's Prisons: Miscellanea. Records of the King's Bench, Fleet, and Marshalsea prisons, Series PRIS 10. The National Archives, Kew, England. TEXT 27 Sep 1846 Committal, George St Leger Grenfell, Room 10"2, 5 May 1860 Dismissal.