looking for my siblings

I am looking for any siblings that I might have. My mothers' name was Mary Janet Sullivan. She was born in Manchester, NH on 12 August, 1936. Months before she died she called and told me she had to clear her conscience. She said she had given up 6 children. This would have been in the 50's. She traveled from California to the East Coast and worked and had children along the way. She said the journey lasted 5 years. She said that there was one set of twins. She named one of the girls Susan, possible in the Arizona area. It would have been around 1953-1955. Hopefully, someone will see this and contact me. My grandmother took me, but the others weren't so lucky. Thank you.:flower: