looking for my birth mother

Originally Posted By MikeI was born Michael Darrell Hart on 02-18-66 in Orange county Hospital in California. Myself and my half sister, Kimberly louise Stacy were taken from our mother on 12-01-75 and placed in the St. Joseph's orphanage in North Little Rock, AR. My birth mother's name is Dianne Wold or Hart and her birthdate is 03-29-49. I don't know if she still lives in Arkansas or not. She possibly has family in California. Any help would be appreciated.