The Henry USINGER that you refer to was born in Germany in 1809. He married Elizabeth RAUBER in 1843. She was born in 1821 and died in 1877 in Illinois. Henry died in 1871 in Illinois. They had seven children.
Johann Heinrich USINGER was born in Germany in 1820. He married Anna Martha SONTAG in 1848. They died sometime after 1900. They also had seven children.
Heinrich is my great-great-great-grandfather. Heinrich and Johann Heinrich were also brothers. Their parents' names were Johann Andreas and Johanna SCHROETTER USINGER.