By 1948, my great grandfather, Omund Jordal had retired from farming and was living in DeKalb, Illinois with my great grandmother, Ingeborg (Maland) at 318 11th street.
Above is the 1948 DeKalb directory. Omund can be found on the far right column mid-way down the page, though his name was misspelled as Arman.
Here is the home as it looks today.
Here a map showing the location of the residence.