Jacob was in Rowan County in September 1788. He enlisted in the Revolutionary War while living in Rowan County, and moved to Union County, Illinois, in 1825.

Jacob Frick appeared before the Circuit Court of Union County, Illinois, to apply for a Revolutionary War pension. He swore that at the time of entering service he resided in Rowan County, North Carolina, and "that at the commencement of the Revolutionary War, he does not know the month or year, he volunteered under one Captain Wendle Miller and was then marched immediately to join what was then called the South Army then laying at a place named Ninety-Six." [Sworn to and subscribed before W. David, Clerk of Court, 15 October 1832]

Jacob Frick was an administrator of Henry's estate.

1790 Rowan County census - Jacob Frick (entry #1061)
1 free white male 16 or older
2 free white males under 16
1 free white female
0 other free persons
0 slaves