Before phones were commonplace, many communities had some sort of directory.
The city of Everett, Washington provided a directory in 1937, which lists the addresses of Rasmus Finnestad and wife Carrie.
Their youngest son Oluf and wife Myrtle are listed as well.
Because Rasmus' wife passed away in 1937, this directory was probably published sometime in 1936. The directory also does not list Rasmus' sister, Mary Bell. It is possible she was living in the same household, though her name is not listed.