Susanna's father, Christian (1748-1820), was one of the ministers who ordained her husband, William in 1815. Christian, and his twin brother, Henry, were both ministers. Apparently Christian was generally considered to be United Brethren, and Henry a Methodist. The two brothers, however, worked together closely as did these two early off-shoots of the German Reformed Church. They would often follow each other to the pulpit; Christian preaching to the German United Brethren, and Henry preaching in English to the Methodists.
Her grandfather, Anthony CRUM, was born in Germany about 1713. An "Anthon Krum" shipped from Rotterdam, Holland, on the ship Edinburgh, on 2 Oct 1753, landing at the Port of Philadelphia. While not confirmed, this appears to be Christian's father. One historian says the family settled first in or near Media, Delaware Co., Pennsylvania. A descendant of Anthony's says they settled by Mauch Chunk, Carbon Co., Pennsylvania.
Either location was temporary for by 1774, Anthony had purchased 600 acres of land from Lord Fairfax, and was settled in Frederick Co., Virginia, where he would remain permanently. It is reported that he paid 1500 English pounds for the property, an extraordinary sum for the time. This would have paid for the labor of 15 men for 8 or 9 years.