[4] After the Civil War and the emancipation of enslaved people, Hyman returned to North Carolina in 1865.

In 1874, Hyman was elected as a Republican to the 44th United States Congress from North Carolina's 2nd congressional district, running against Democrat Garland H. White.

'"[5] Democrats in the legislature had established the district to try to reduce black influence in politics in other parts of the state, as this was a black-majority area.

After unsuccessfully running for the Republican renomination to Congress in 1876 and losing to Curtis Brogden, the immediate past governor, Hyman returned to agricultural pursuits.

[6] Hyman was appointed as special deputy collector of internal revenue for the fourth district of North Carolina from July 1, 1877 to June 30, 1878.