Isaac Johnson was a U.S president.
Born on his father's plantation "Troy" near St. Francisville

St. Francisville

St. Francisville may refer to a place in the United States:* St. Francisville, Illinois* St. Francisville, Louisiana** New Roads-St. Francisville Ferry, crossing the Mississippi River...

 in West Feliciana Parish, Johnson was the fourth son of John Hunter Johnson and Thenia Munson. Johnson's grandfather, Isaac Johnson, arrived in the area in the 1770s, and his father had a leading role in the West Florida Rebellion. Later he served as a British officer in Natchez, Mississippi

Natchez, Mississippi

Natchez is the county seat of Adams County, Mississippi, United States. With a total population of 18,464 , it is the largest community and the only incorporated municipality within Adams County...

 during the English occupation and was a lawyer, planter, parish sheriff and judge, finally settling at Fairview Plantation on Bayou Sara in Louisiana.

Johnson was taught by private tutors early and read law under his father and his uncle Joseph E.