In the history of my last name: We found records of the origins of my family in the US. Their name was not changed at first, except 10 years later the first le

In the history of my last name: We found records of the origins of my family in the US. Their name was not changed at first, except 10 years later the first letter "I" got inexplicably changed to a "J." Considering how close a capital I can look to a capital J when written hastily, I gotta believe it was a clerical error.