My Catherine Dassance (often mispronounced and spelled as Dawson) died 21 Jul 1878 at Clinton, Rock County, WI. She was buried in the Clinton Cemetery. It is possible that there were no Probate Files for her until 1906. If so, they would have had to have been filed by a grand child.-- her mother Caroline Conely died in 1899 at Clinton.
The only way I could be sure of the identity of the Catherine you mention, would be to see the actual Probate file, which I cannot do from Roswell, Ga.
Thanks for your suggestion. If you can pursue this for me, I would be forever in your debt.