 Henry akashanda muLegislature yeConnecticut muna 1856 uye akanga ari nhume kubva kuConnecticut ku1860 Republican National Convention, iyo yakasarudza Abraham Lincoln, uye ku1868 Republican National Convention, rakapa zita rokuti Ulysses S. Grant. Akanga ari sachigaro weRepublican State Committee yeConnecticut uye nhengo yeNational Republican executive committee. Akagadzwa postmaster weNorwich, Connecticut muna 1861 naAbraham Lincoln, uye akagadzwazve neMutungamiri Andrew Johnson zvakare muna 1865. Akasiya basa muna 1866 uye akasarudzwa kuUS Congress muna 1867 uye akashanda kusvikira afa muhofisi muna 1876. 