Rosemary got most of the birth dates from Elsie Aherns who, with her sister Doris Phelps, traveled to Scotland to research the Rutherford family.
After Elsie passed away, Rosemary was invited by Doris and her sisters to come and help go through Elsie's paperwork on the Saltmarshes. She was given some of the Rutherford paper work to being home, but she had to return it.
Rosemary has also collaborated with Craig Fischer of Harrogate and Ann Cooper of Gummeraca.