Willie Lee Atkyns oil painting "Old Sentinel Tree" Dismal Swamp, VA

I found this painting today at a Savers thrift store for $15. The painting is oil on board and measures 27″ x 19″. The painting is signed ATKYNS, but the artist’s name is on the back as Lee Atkyns. The painting isn’t dated that I see. It had to be painted before 1968. He was also known as Willie Lee Atkyns Jr. Atkyns was born in 1913, in Washington, D.C. and passed away in 1987, in Duncansville, PA. He had his debut as an artist in 1941 in New York. In 1945 he started teaching at a school he established in Washington, DC. He won many awards, and had his artwork displayed in museums, galleries and public buildings. The painting came in a what looks like a pretty old frame.
This painting was apparently exhibited at the Academy Gallery at 102 East Franklin St, Richmond VA, on April 9th (year unknown). Atkyns lists his address as 4712 Wisconsin Ave, Washington D.C.. So it had to have been painted prior to 1968 when he moved to Puzzletown, PA.
Also written on the bottom back of the frame is “Lull Before The Storm”, but I think this may have been from a previous painting.

Exhibit card from Willie Lee Atkyns oil painting "Old Sentinel Tree" Dismal Swamp, VA