I'm not related to this person.

1930 - William will only appear as a child in the 1930 census. 1930 is the last available census at this time.

1930 -
Name: William Wilde
Home in 1930: Royal Oak, Oakland, Michigan
Age: 7
Estimated Birth Year: abt 1923
Relation to Head of House: Son
Father's Name: Hugo F
Mother's Name: Lillian F
Parents' birthplace: MI/MI

Hugo F Wilde 38, MI - Age at first marriage: 28; millwright
Lillian F Wilde 35, MI - Age at first marriage: 28
William Wilde 7, MI

try -
Social Security Death Index = FREE, Searchable = ALL STATES
DO NOT SEARCH USING A MAIDEN NAME.

http://ssdi.rootsweb.com/