I've seen a number of instances in colonial American records of two men of the same name being called "senior" and "junior" (or "the elder" and "the younger") in local records, simply to avoid confusion between them. The two men might be uncle and nephew, cousins, or unrelated, and sometimes they were very close together in age.
The first time I saw this documented, I thought it was unusual, but since then I've seen quite a few more instances.