Looking for Bio Mom and Sister

Hi, i am an adoptee from St.Petersburg Florida, pinellas county, i was sent to a foster home in Tampa, and later sent to the Children's Home Society in Jacksonville Florida. Where i was adopted... I have 1 full sister, 3 half sisters and 1 half brother. I have found my 3 half sisters and half brother. I am still looking for my full sisiter.. My sisters name at birth was Lois Bias.... I know her adopted name is Cathy, or Kathy... Our Mom's name is Vicky, or Vicki Hennings, i do not know if this was her first name... Our dads name was Leland Kidd Bias..... He has passed away... My birth name was Leland Kidd Bias Jr. My adoptive name is Robert Dickinson, if you can help... please contact me, Thank You dwwstp@hotmail.com