Missing Son

I had been looking for the Ryan children. I found four daughters but I could not find the son. I could think of three scenarios of where he was. He was married and living elsewhere, he served in the war, and moved. There are many Dainiel Ryans in databases. So I was not having any luck. Then, although not looking for it, I came across his mother's probate record. I was thrilled with the find. As I read it, she mentioned that she was assigning my husband's grandmother and her sister as executors of the estate. She also mentioned the other sisters and "my son, Daniel, who died as a child." And that was the end of my search for Daniel.