Thomas Alexander Boyd was a U.S. Representative

United States House of Representatives

The United States House of Representatives is one of the two Houses of the United States Congress, the bicameral legislature which also includes the Senate.The composition and powers of the House are established in Article One of the Constitution...

 from Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

.

Born near Bedford

Bedford, Pennsylvania

Bedford is a borough in Bedford County, Pennsylvania, west of the State Capital, Harrisburg. It is the county seat of Bedford County. Bedford was established in the mid-18th century. Population counts follow: 1890, 2,242; 1900, 2,167; 1910, 2,385. The population was 3,141 at the 2000...

 in Adams County, Pennsylvania

Adams County, Pennsylvania

Adams County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 101,407. It was created on January 22, 1800, from part of York County and named in honor of the second President of the United States, John Adams...

, Boyd attended the public schools.
He was graduated from Marshall College, Mercersburg, Pennsylvania

Mercersburg, Pennsylvania

Mercersburg is a borough in Franklin County, Pennsylvania, southwest of Harrisburg. Originally called Black Town, it was incorporated in 1831. In 1900, 956 people lived here, and in 1910, 1,410 people lived here...

, in 1848.
He studied law in Chambersburg, Pennsylvania

Chambersburg, Pennsylvania

Chambersburg is a borough in the South Central region of Pennsylvania, United States. It is miles north of Maryland and the Mason-Dixon line and southwest of Harrisburg in the Cumberland Valley, which is part of the Great Appalachian Valley. Chambersburg is the county seat of Franklin County...

.
He was admitted to the bar

Admission to the bar in the United States

In the United States, admission to the bar is the granting of permission by a particular court system to a lawyer to practice law in that system. Each U.S. state and similar jurisdiction has its own court system and sets its own rules for bar admission , which can lead to different admission...

 and commenced practice in Bedford, Pennsylvania

Bedford, Pennsylvania

Bedford is a borough in Bedford County, Pennsylvania, west of the State Capital, Harrisburg. It is the county seat of Bedford County. Bedford was established in the mid-18th century. Population counts follow: 1890, 2,242; 1900, 2,167; 1910, 2,385. The population was 3,141 at the 2000...

.
He moved to Lewistown, Illinois

Lewistown, Illinois

Lewistown is a city in Fulton County, Illinois, United States. The population was 2,522 at the 2000 census. It is the county seat of Fulton County. Located in central Illinois, it is southwest of Peoria. It is the source of Spoon River Anthology by Edgar Lee Masters, who lived there...

, in 1856 and engaged in the practice of law until 1861.
During the 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...

 enlisted in the Seventeenth Regiment, Illinois Infantry, in 1861 and obtained the commission of captain.
He served as member of the State senate in 1866 and was reelected in 1870.

Boyd was elected as 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...

 to the Forty-fifth

45th United States Congress

-House of Representatives:-Leadership:-Senate:*President: William A. Wheeler *President pro tempore: Thomas W. Ferry -House of Representatives:*Speaker: Samuel J. Randall -Members:This list is arranged by chamber, then by state...

 and Forty-sixth

46th United States Congress

The Forty-sixth 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, 1879 to March 4, 1881, during the last two years of...

 Congresses (March 4, 1877-March 3, 1881).
He was not a candidate for renomination in 1880.
He resumed the practice of law.
He died in Lewistown, Illinois

Lewistown, Illinois

Lewistown is a city in Fulton County, Illinois, United States. The population was 2,522 at the 2000 census. It is the county seat of Fulton County. Located in central Illinois, it is southwest of Peoria. It is the source of Spoon River Anthology by Edgar Lee Masters, who lived there...

, May 28, 1897.
He was interred in Oak Hill Cemetery.