I was left a collection of old vynil records mostly clical, 20' 30's 40' how can I find an appraiser

Just a sampling of these Beethoven Treasury of the worlds most honored musical favorites (Columboa Record) Beethoven 30 piano masterpieces (Columbia Records) Great Fun Songs Down Memory Lane the Golden 20's Clyde McKoy Wabash Blues Sugar Blues etc. I live in a small town in the Delta closest cities to me are Memphis Tenn. and Little Rock Ar. The albums are all very carefullu catalouged on file cards and I really hate to see them ruin sitting in a shed.