Watercolor of African American child and watermelon

This Beautiful watercolor is 5.5" x 3.75. It was found in my great aunts home in a closet in Anniston Alabama. Artist initials are very distinct "FM"
I found 2 other of this artists paintings on the Internet where someone was trying to find something about the artist as well. Those paintings were oil and the person posting it said they probably dated from 1890–19 30s. one painting is Hawks Craig on the Boller River and the other paining was a mountain that was not recognized. This person thought the artist was from the West Coast