Reading the posts and the interchangability of surnames found in the 16 and 1700’s, has anyone found the surnames of De la Garza and Garcia to be interchangeable from one event to another?  Than

Reading the posts and the interchangability of surnames found in the 16 and 1700’s, has anyone found the surnames of De la Garza and Garcia to be interchangeable from one event to another?  Thanks so much,  Alice