O'Connor & Thomas, P.C. was founded in 1840 under the name of Davis & Crawford. The current firm is the direct descendant of Davis & Crawford and is the oldest law firm in continuous practice west of the Mississippi.
Dubuque, IA
Among the prior partners of the firm are an aide to President Lincoln during the Civil War, an Attorney General of Iowa, Speaker of the United States House of Representatives, an Iowa Supreme Court Justice, and numerous other judges and dignitaries.
O'Connor & Thomas, P.C.