Would you please post the approximate date of birth of each of the sisters and post transcriptions of the records mentioned? Also a longer description of your sources and process would be helpful. For example, you know the date of death of one of the sisters. Do you have her death certificate? That should tell the parents' names. Tell us all you can about the facts, your sources, and your process, to bring volunteer researchers up to speed with where you're at. That way you'll help your helpers avoid re-doing work you've already accomplished. Thanks in advance.