William Campbell Preston Breckinridge (August 28 1837 – November 18 1904) was a Democratic U.S. Representative from Kentucky a Member of the Masonic Lodge and a Member of the Knights Templar. He was the first cousin of Vice President of the United States John C. Breckinridge.He was born in Baltimore Maryland and graduated from Centre College in Danville Kentucky in 1855. He went on to earn his Juris Doctor from the University of Louisville in 1857.