Let's add that 1940 census mentioned. If you know the names of the parents of George or Helga, please add those. Parents' names appear on death records, so those names could lead you - and the forum - to a date and place of death for George and Helga. (In fact it could be difficult to identify them without that information.) Basically, add as much as you can about them. Thanks!
Orfordville, Rock, Wisconsin
George Johnson 52 b abt 1888 Wisconsin
Helga Johnson 51 b abt 1889 Norway
Harol Johnson 60 daughter b Wisconsin
[Harol age 60 = Hazol age 20]