Carroll, John Haydock was born on June 27, 1857 in in Erie County, New York, United States. Son of Michael and Margaret (Doolin) Carroll.
Educated in Quaker schools in Indiana.
December 17, 1880. Admitted to Ohio bar, 1880, Missouri bar, 1881. Prosecuting attorney, Putnam County, Missouri, 1883-1889. Practiced in St. Louis, since 1889.
General attorney C.,B.&Q. Railroad Company, N.P. Railway Company. And G.N. Railway; president Vinsonhaler Shoe Company Was colonel on staff Governor D. R. Francis. Delegate Democratic national convs., 1888, 1900, alternate-at-large, 1892.