Electric nemo saxophone

What would be the best 1st early blues CD to buy? - keb mo suitcase

My husband and I have always wanted to present as the old blues-funk or platinum (we lived in New Orleans). Suggestions on what would be a good CD to start with in terms of ownership? A good best blues CD early? Maybe an album by Blind Willie McTell? Mississippi Fred McDowell? Anyone else? We have an album of Bob Dylan by the Blues in the early figures and a CD Keb 'Mo ..... but we want something from their roots.