Here's a transcription of their marriage certificate found in the Wake County Register of Deeds in Raleigh, NC on page 26D:
Date Issued: Oct. 14, 1926
Date Married: Oct. 14, 1926
Husband's Full Name: Vater A. Allen
Bride's Full Name: Ethel Davis
Husband's Residence: Neuse, Rt. 2
Bride's Residence: Youngsville, Rt. 3
Husband's Age: 22
Bride's Age: 21
Name of Title of Person performing marriage: J.G. Davis, Baptist Minister
Place of marriage: New Light Township
Witnesses: Onnie Davis, Bruce Davis, --- Pleasant
Of the witnesses, Bruce DAVIS was Ethel's brother. I don't know who Onnie DAVIS is or the unknown Pleasant.
The minister, yet another DAVIS, was probably a family member but I have no idea which one.
They married in New Light, which isn't really a town. It's a "township" without a town, according to Wikipedia. Really.
The fellow looking so lovingly at Grandma Ethel in the picture to the right isn't her husband. He was - before she married, of course - her beau of one time, Luther Lowery.