Appears on the 1850 and 1860 censuses with mother Elizabeth Hagenbuch. Catherine is listed a Miller, 20 years old, in 1850 but as a Hagenbuch in 1860. She has a son, Henry Miller, living with her. He is 1 year old in 1850 and 10 in 1860, meaning he was born in 1849.
It seems that Catherine was married to an unknown Miller who died around the time of their first and only child’s birth. She likely remarried. In 1870 the census shows Henry Miller living with his aunt and uncle, Henry and Matilda Hagenbuch. Catherine is not there.