Charles O'Neill was a Republican

Republican Party (United States)

The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP . The party's platform generally reflects American conservatism in the U.S...

 member of the U.S. House of Representatives from Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

 during the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

 and Reconstruction.

Biography

O'Neill was born in Philadelphia

Philadelphia, Pennsylvania

Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

, Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

. He graduated from Dickinson College

Dickinson College

Dickinson College is a private, residential liberal arts college in Carlisle, Pennsylvania. Originally established as a Grammar School in 1773, Dickinson was chartered September 9, 1783, five days after the signing of the Treaty of Paris, making it the first college to be founded in the newly...

 in Carlisle

Carlisle, Pennsylvania

Carlisle is a borough in and the county seat of Cumberland County, Pennsylvania, United States. The name is traditionally pronounced with emphasis on the second syllable. Carlisle is located within the Cumberland Valley, a highly productive agricultural region. As of the 2010 census, the borough...

 in 1840. He was a member of the Pennsylvania House of Representatives

Pennsylvania House of Representatives

The Pennsylvania House of Representatives is the lower house of the bicameral Pennsylvania General Assembly, the legislature of the U.S. state of Pennsylvania. There are 203 members, elected for two year terms from single member districts....

 from 1850 to 1852 and again in 1860. He served in the Pennsylvania State Senate

Pennsylvania State Senate

The Pennsylvania State Senate has been meeting since 1791. It is the upper house of the Pennsylvania General Assembly, the Pennsylvania state legislature. The State Senate meets in the State Capitol building in Harrisburg. Senators are elected for four year terms, staggered every two years such...

 in 1853.

In 1862

United States House election, 1862

Elections to the United States House of Representatives were held in 1862, mostly in November, in the middle of President Abraham Lincoln's first term...

 during the Civil War, he was elected as a Republican to the 38th

38th United States Congress

-House of Representatives:Before this Congress, the 1860 United States Census and resulting reapportionment changed the size of the House to 241 members...

 and to the three succeeding Congresses. He was an unsuccessful candidate for reelection in 1870

United States House election, 1870

The U.S. House election, 1870 was an election for the United States House of Representatives in 1870 which occurred in the middle of President Ulysses S...

. He was again elected to the 43rd

43rd United States Congress

The Forty-third United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1873 to March 4, 1875, during the fifth and sixth...

Congress and served from until his death.