Here is what I have:

Martha Blanchard, aka Martha Williams , also went by the name Mabel Blanchard. Born about 1875 in Iowa. More than likely she was born in Smithland, Iowa. Maiden name was Williams. Probably married a Blanchard in either, Nebraska or Yankton, South Dakota in the late 1880's.

I have pictures of her when she was in Yankton, South Dakota with her sister, Dora Young, aka Dora Williams in the early 1920's

I know this is a long shot, but in Genealogy, a long shot can sometimes open new doors.