Hi Maria,
I checked Swenson records for Wallace, Michigan. Wallace had a swedish covenant church and a lutheran church in those days but nobody by the name of Anders Nilsson or Ingeborg Eriksdatter Ringsby was listed on the member rolls of either church. Perhaps they had a post office address as Wallace but lived closer to another swedish church? Wallace was on the railway line so possible for them to have traveled south to the chief town, Menominee.
Chuck