I'm researching my father's side of the family (Johnson), and have traced the arrival of Jonas August Johansson (Johnson) and wife Johanna Kristina "Hannah". They had five children, three of which died at a very young age, and Oscar passed away October 6, 1918 due to pneumonia. He had a wife, Irene. I am trying to determine if there were any children between Oscar and Irene. Per the 1920 census, Irene was listed as staying with my ggrandfather as a sister-in-law. Any advice/ assistance would be greatly appreciated.

Geneva