Finding MuM

I haven’t seen my mother since i was eleven years old but she wanted me to leave with her Diane Christine Roberts, aka Purnell, she was a business woman who owns a bar and lives there, a number of years ago i got told that i should contact her, but the person who had the details passed away, I’ve traveled with my partner and children looking at different bars around  the island with numerous times to no avail, I’ll get more details about it soon hopefully from this forum, also my mother used a name Darnell. Please ask around she would be about seventy years years old, thanks in advance, alan