About Another One of John Gray s Family Does Oshawa s former mayor John Gray have brothers or sisters How many siblings does he have anyway How many brothers does John Gray have And how many sisters does John Gray have By the way John Gray s full name is actually John Gray Sr Because his son s name is John Gray too John Gray s son s full name is John Gray Jr John Gray just calls him J J Because J J is another name for John Junior Do you guys even know if John Gray has brothers or sisters