Blanchard, Col. Charles, ed. The Progressive Men of the Commonwealth of Pennsylvania. Vol. 2. Logansport, In.: A.W. Bowen & Co., 1900.
ARMSTRONG, William Hepburn, a Representative from Clinton and Lycoming Counties; born, September 7, 1824 in Williamsport, Lycoming County, Pa.; graduated, Princeton College, 1847; lawyer (1848-1898); law clerk, United States Court, Williamsport (1850-1854); charter and board member, Williamsport Gas Company (1856); elected as a Republican to the Pennsylvania House of Representatives for the 1861 and 1862 terms; not a candidate for reelection to the House for the 1863 term; elected, United States Congress (1869-1871); unsuccessful reelection to Congress (1870); elected, delegate-at-large, Pennsylvania Constitutional Convention (1872-1873); presidential appointee, United States Commissioner of Railroads (1882-1885); died, May 14, 1919 in Wilmington, New Castle, Delaware; interred, Wilmington and Brandywine Cemetery, Wilmington, New Castle County, Delaware.
Armstrong, William Hepburn. Commutation of tonnage duties. Harrisburg: Telegraph steam print, 1862.