Cornelius Ambrose Logan (August 24, 1832 – January 30, 1899) was an American physician, writer, and diplomat, best known for his two terms as United States Ambassador to Chile (1873-6 and 1882-5[1]) during difficult times.
In 1856 he moved to Kansas to practice medicine and was appointed chairman of the State Board of Medical Examiners at the outbreak of the Civil War.
[2] After the Civil War Logan published works on a variety of subjects - sanitary conditions, climatology, and infectious disease.
He edited a posthumous work on volunteer soldiers by his cousin, General John A. Logan.
[9] Celia (1837–1904) was an actress but also a journalist, novelist and translator; she was for a time the wife of painter Miner Kilbourne Kellogg (1814–1889).