Why there are a lot of them...
In my direct ancestral line alone, there is
Anderson Smith; 15 children
his son, Vincent T.; 17
his son, George Washington; 14
his son, Elbert Columbus; 5
his son (my grandpa), Odie McBride; 6
And then there are all those great-aunts and uncles of mine, for example, Vincent's brother, John, also had 11 children. How many more SMITHS in that single generation?! It boggles the mind.
It's a fun family to research though, because they have all the best names, Andrew Jackson Smith, Narcissa Rachel, Priscilla Aquilla, Elbert Columbus, George Washington, Solomon, Serilda, Columbus Cornelius, Marcus De le fe, Luticia Oregon, and on and on. They tended toward grand names and to use colorful nicknames. I suppose when you have that many children, you have to get creative about naming them.