1920 - United States Federal Census, District 189, Kansas City Ward 6, Wyandotte, Kansas, 9th & 10th of January 1920
SALTZ, Dee head m w 31 md MO MO OK janitor, packing co
SALTZ, Florence wife f w 25 md MO MO PA
SALTZ, Mildred daughter f w 5 s MO MO MO
SALTZ, Vernon son m w 1 8/12 s MO MO MO
SALTZ, Herbert head m w 19 m MO MO MO, electrician, packing co
SALTZ, Della wife f w 19 MO MO MO

1930 - United States Federal Census: Kansas, Wyandotte, Kansas City, District 58, image 89 (Ancestry.com)
Dee and his son Vernon are lodgers with a family named Lance. Their name has also been recorded as Du Soltz, but what it says is, Dee Saltz, Dee
SALTZ, Dee lodger m w 42, wd md at 21 MO TN TN machinist, packing house
SALTZ, Vernon lodger m w 11 s MO MO MO

1984, 27 November - Vernon can be found in the California Death Index, 1940-1997, but it says his mother’s maiden name was Coslet. I’m confused.