Leary was elected as a Unionist to the Thirty-seventh Congress, where he served from March 4, 1861, to March 3, 1863.
Timothy Leary | Denis Leary | Cornelius Vanderbilt | Cornelius | Pope Cornelius | Lucius Cornelius Cinna | Cornelius Cardew | Cornelius Vanderbilt Whitney | Cornelius Lanczos | Peter von Cornelius | Dermot O'Leary | Cornelius Grogan | O'Leary | Cornelius Ryan | Cornelius Castoriadis | The Lang and O'Leary Exchange | Publius Cornelius Scipio Nasica Corculum | Kevin O'Leary | Jerry Cornelius | Helen Cornelius | Cornelius Vermuyden | Cornelius, North Carolina | Cornelius (musician) | Cornelius Ludewich Bartels | Cornelius Jansen | Cornelius Bundrage | Catherine O'Leary | Brendan O'Leary | Paul Leary | Michael John O'Leary |