Hi Christine Sydnor (Hardwicke)! Geni, personally, is not terribly "user-friendly", but it is worth the effort and takes many to make and keep a profile correct.
Thank you for caring about the big tree!
Useful article, which corrects some misinformation in earlier sources
https://www.jstor.org/stable/4244820?seq=1
Not mentioned, but possible, is a firstborn son, called Isham, born say a year after the marriage, didn't live long. Parish register would need checking.