I am not a descendant but I do have a different Phillips line in Johnson Co., IL and have been researching the other Southern Illinois Phillips lines to see if there is a connection. I have quite a bit of data on your line. I show only one child for Herman Phillips & Laura Blanche Maples who were evidently your grandparents.
You can contact me at my direct e-mail which is firstname.lastname@example.org
Terry (Phillips) Litvan