I Am Looking for My Relatives Whom I Have Never Met My Granfather is R

I am looking for my relatives whom I have never met.My granfather is Robert E. Erwin Sr. married to Mildred E. davis.He was born to Judson Erwin and Effie Mae (Warren)Erwin on about June 28th 1922 in Glen Allen,Alabama his brothers and sisters were Hollace,Judson,Ray,jewel,lucille,and ruby.