Note: The photo (taken about 1910) of the Ault family in front of the house was put on his dads (William) page first by ksw

1st marriage; Dewey Day Ault married Velta May "Belta" Doggett on September 10, 1923 in Centerville, Iowa.

Ancestry.com. Iowa, U.S., Marriage Records, 1880-1951
Name: Dewey Dav Ault
Gender: Male
Race: White
Age: 25
Birth Date: abt 1898
Birth Place: St Paul Iowa
Residence Place: Kansas City, Missouri
Marriage Date: 10 Sep 1923
Marriage Place: Centerville, Appanoose, Iowa, USA
Father: Wm E Ault
Mother: Marguerite Ehrmann
Spouse: Velta May Doggett

Note: From what I can see from records. This is where I get my information from. I think this is a mistake on this record. It should be a Divorce Record not Marriage Record. Because on the 10 April 1940 census, Dewey Day Ault says he is divorced.

Missouri, U.S., Marriage Records, 1805-2002 (It should say Divorce Record)
Name: Dewey D Ault
Age: 34
Birth Date: 1899
Marriage Date: 11 Sep 1933 (It should say Divorce Date)
Marriage Place: Clay, Missouri, USA
Spouse: Velta M Ault

Ancestry.com. 1940 United States Federal Census Place: Chicago, Cook, Illinois
Name: Dewey Day Ault
Age: 41
Estimated Birth Year: 1899
Gender : Male
Race: White
Birthplace: Iowa
Marital Status: (Divorced)
Relation to Head of House: Guest
Home in 1940: Chicago, Cook, Illinois
Street: Northmere Hotel 4943 Kenmore Avenue
Residence in 1935: Kansas City, Jackson, Missouri
Occupation: Clerk Steno
Highest Grade Completed: College, 2nd year

2nd marriage; Then Dewey Ault married Marie Stack on September 15, 1943 in Cook Co., Illinois.

Ancestry.com. Cook County, Illinois Marriage Index, 1930-1960
Name: Dewey Day Ault
Marriage Date: 15 Sep 1943
Spouse: Marie Vida Stack
Marriage Location: Cook County, IL
Marriage license: {B67A75D4-C4DA-4323-A05E-9EC28117C3F5}
File Number: 1788375
Archive collection name: Cook County Genealogy Records (Marriages)
Archive repository location: Chicago, IL
Archive repository name: Cook County Clerk

Note: According to his obituary he died in the Saint Joseph Hospital in Belvidere, Illinois