Occupation: Retail Merchant -- Grocery

Father: Arthur Bartlett Stewart Sr. b. 1812-24 Scotland
Mother: Delilah Sheff b. 1820-27 VA

Spouse: Margaret E "Maggie" Robinson
Married 16 Oct 1899 Hamilton Co., Tennessee

Margaret's Parents:
Father: Joseph Robinson b. Cork. Ireland
Mother: Mary McMahon b. Georgia

It looks like William & Margaret never had any children, unless they had some that died as babies.
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1880 census possibly : https://www.familysearch.org/ark:/61903/1:1:MDQB-W29
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William Stewart / United States Census, 1900
Event Place: Chattanooga city Ward 3, Hamilton, Tennessee
Gender: Male
Age: 39
Marital Status: Married
Race: W
Relationship to Head of Household: Boarder
Years Married: 0
Birth Date: Dec 1861
Birthplace: Tennessee
Marriage Year (Estimated): 1900
Father's Birthplace: Tennessee
Mother's Birthplace: Tennessee

Household Role Sex Age Birthplace
Mary Robinson Head Female 45 Georgia
Thomas A Robinson Son Male 21 Georgia
Cornelius Robinson Son Male 20 Georgia
Rebecca Robinson Daughter Female 20 Georgia
Joseph Robinson Son Male 16 Georgia
Mathew Robinson Son Male 14 Georgia
Mary Robinson Daughter Female 12 Georgia
Mark Robinson Son Male 9 Georgia
Paul Robinson Son Male 7 Georgia
William Stewart Boarder Male 39 Tennessee
Maggie Stewart Boarder Female 22 Georgia
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Wm A Stewart / United States Census, 1910
Event Place: Anaheim, Orange, California
Gender: Male
Age: 49
Marital Status: Married
Race: W
Relationship to Head of Household: Head
Birth Year (Estimated): 1861
Birthplace: Tennessee
Father's Birthplace: Scotlaned
Mother's Birthplace: Virginia

Household Role Sex Age Birthplace
Wm A Stewart Head Male 49 Tennessee
Maggie E Stewart Wife Female 32 Georgia
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William Stewart / United States Census, 1920
Event Place: Los Angeles Assembly District 63, Los Angeles,California
Gender: Male
Age: 59
Marital Status: Married
Race: W
Can Read: Yes
Can Write: Yes
Relationship to Head of Household: Head
Own or Rent: Own
Birth Year (Estimated): 1861
Birthplace: Tennessee
Father's Birthplace: Scotland
Mother's Birthplace: Virginia

Household Role Sex Age Birthplace
William Stewart Head Male 59 Tennessee
Margaret Stewart Wife Female 42 Georgia
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William A Stewart / United States Census, 1930
Event Place: Los Angeles (Districts 0251-0500), Los Angeles, California
Gender: Male
Age: 69
Marital Status: Married
Race: W
Relationship to Head of Household: Head
Birth Year (Estimated): 1861
Birthplace: Tennessee
Father's Birthplace: Scotland
Mother's Birthplace: Virginia

Household Role Sex Age Birthplace
William A Stewart Head Male 69 Tennessee
Margaret E Stewart Wife Female 52 Georgia
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NOTE: I have no idea why William & Margaret gave their place of birth as Iowa.

William A Stewart / United States Census, 1940
Event Place: Councilmanic District 4, Los Angeles, Los Angeles Township, Los Angeles, California
Gender: Male
Age: 79
Marital Status: Married
Race: W
Relationship to Head of Household: Head
Birthplace: Iowa
Birth Year (Estimated): 1861
Last Place of Residence: Same House

Household Role Sex Age Birthplace
William A Stewart Head Male 79 Iowa
Margaret Stewart Wife Female 62 Iowa
George Paling Lodger Male 40 New York
Flora Paling Lodger's wife Female 37 Oklahoma
Dora Gilbert Lodger Female 57 Canada
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