Affiliate Marketing Secrets

My name is Jacqueline Lea Annis Cartwright. I was conceived in the summer of 1959. My mother and father were separated at the time. My mother lived in the Piedmont Apartments in Pleasant Grove, TX, a section of Dallas. My mother held this secret about me until I was 49 years old. She claims his name was Leroy Walker, but that he went by the name Jack. She claims he operated a soda fountain inside a Pharmacy across the street from the apartments where she lived. I discovered the name of the pharmacy to be Jack Phillips Drug, and may have been affiliated with World Drug. She also claims he worked for the City of Dallas as a health inspector. She says he was quite a bit older than her and that he was married and had two teenage sons at the time. This tells me that I have two half-brothers. I assume that my birth father is disceased, but I have no information. She says he lived in an area around White Rock Lake in Dallas. I have searched genealogy sites but cannot access much because I cannot afford the fees. Any help would be greatly appreciated because the window is closing, my mother is 78 years old.