The known sons and daughters are: Mary, Anna (or Anne), Sarah, Elizabeth, and Abigail, Joseph and Nathaniel. Who was the son or daughter of Richard Warren who you are descended from? It is WikiTree practice to merge all the Mayflower Richard Warrens together and edit the result. If the person was not on that list, it was probably removed with a comment put in the biography. There are some other Warrens of the right place and time who are NOT Richard Warren of the Mayflower or his children.
You will need to supply some very good documentation if you think someone else is a son or daughter. It would need to be something written the 1600's and kept in an official record book.
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