Yes. Marie was my grandfather's sister. My father had only vague recollection of his cousins so I have been trying to piece things together.
My primary area of interest is Richardson's ancestors. From 1880 census, Marie's paternal grandparents seem to be: Edward Richardson/Elizabeth Phipps Children: Frank I., Mead William, Thomas A., and George. Especially interested in any information on this family and its ancestors.
Marie's maternal grandparents, the Andersons, seem well documented on the Internet, some of which I have confirmed from other sources.
As for Pelkey's, I show Mary Jo and Richard as children of Heber and Marie. I have some contact with Mary Jo's branch butknow virtually nothing about any of Richard's branch. Would welcome information you care to share.