I have seen several occurrences of records which added "Jr" or "Jun'r" to a person's name, though other evidence indicates the father didn't have the same name. I have seen it most frequently for individuals that had a grand-father, uncle, or other close relative with the same name.
In town records, deeds, census records, etc., it appears that the intent was to distinguish the person named in the record from another person of the same name in the same community.
EDIT: similarly, I've seen "Sr" or similar added to a person's name that didn't have a son of the same name, apparently with the same intent.
EDIT2: IF one of those occurrences is the reason the profile has the suffix "Jr," and lacking any source indicating his parents considered that part of his name, (in my opinion) the removal of the suffix should be considered.