June 13, 1901 was the birthdate of the first born child. She was named Nina Lorene (and became my grandmother).
Merroll M. was born November 24, 1902. It seems obvious that he was named for his paternal grandfather, George Merroll Smith. I have not pursued the M. of his middle name, but I imagine I will find it to be McLaughlin, the middle name of his maternal grandfather. I will get back to you on that one.