Ptior May

I am trying to find information on the famiy of Prior (Pryor) May, born about 1825. He lived in Caldwell Couny NC, and Union Ga. I cannot find him in 1840 census anywhere. He married Mary Bomar/Bowie/Bomie/Bowman. They had 8 children.James, John,Joseph Floyd,Susan Francis,Mary Jane, William Monroe, E Granville,and Thomas. I would like to find out Priors' fathers name, and where Prior was born. Any info appreciated!