He was elected as an Opposition Party candidate to the
Thirty-fourth Congress, and served as United States representative from
Pennsylvania's 3rd congressional district from March 4, 1855, to March 4, 1857. He was an unsuccessful candidate for reelection in
1856, but was elected as a Republican in
1858 and served as U.S. representative from
Pennsylvania's 4th congressional district from March 4, 1859, to March 4, 1861. During that term, he was chairman of the
United States House Committee on Patents. He was involved in the Marshal's sale of the British brig Ariel which was captured by the
Atlantic Blockading Squadron during the
American Civil War and sold at auction. He was appointed Director of the United States Mint in September 1866 by President
Andrew Johnson, however his appointment was not confirmed by the
United States Senate and he served only six months from October 1866 to April 1867. Millward died in
Kirkwood, Delaware, on November 28, 1871 ==References==