Extract from the 1920 Census:
Name: William T Marlatt
Age: 1 6/12
Estimated birth year: 1918
Birthplace: Michigan
Race: white
Sex: male
Relationship to head of house: son
Home in 1920: Mount Clemens, Macomb, Michigan
Address: 106 Clinton Street
Marital status: single
Father's birthplace: Michigan
Mother's birthplace: Michigan
Occupation: none
Siblings living at home: none
Census place: Mount Clemens Ward 2, Macomb, Michigan; Roll: T625_782; Page: 4B; Enumeration District: 76; Image: 758
Date: 6 Jan 1920

Extract from the 1930 Census:
Name: William T Marlatt
Age: 11
Estimated birth year: 1919
Birthplace: Michigan
Race: white
Sex: male
Relation to head-of-house: son
Home in 1930: Mount Clemens, Macomb, Michigan
Address: 68 Scott Boulevard
Marital status: single
Education: able to speak English
Education: able to read and write
Father's birthplace: Michigan
Mother's birthplace: Michigan
Occupation: attending school
Sibling living at home: Mary H (age 7 11/12)
Census place: Mount Clemens, Macomb, Michigan; Roll: 1009; Page: ; Enumeration District: 33; Image: 405.0
Date: 1 May 1930

Extract from the 1940 Census:
Name: William Marlatt
Age: 21
Estimated birth year: 1919
Birthplace: Michigan
Race: white
Sex: male
Relation to head-of-house: son
Home in 1940: Mount Clemens, Macomb, Michigan
Address: 223 Euclid Street
Marital status: single
Highest grade of school completed: high school 4 years
Living on farm: no
Place of residence in 1935: same house
Occupation: salesman
Industry: retail furniture
Salary or wage worker: wages
Number of weeks worked in 1939: 26
Amount of money wages or salary: $650
Has other income of more than $50: no
At work during week of March 24-30: yes
Number of hours worked: 40
Siblings living at home: Mary (age 17) and Richard (7)
Census place: Mount Clemens, Macomb, Michigan; Roll: T627_1783; Page: 10A; Enumeration District: 50-38
Date: 11 Apr 1940

Extract from U.S. World War II Army Enlistment Records, 1938-1946:
Name: William T Marlatt
Birth year: 1918
Race: white, citizen
Nativity state or country: Michigan
State: Alaska
Enlistment date: 14 Nov 1941
Enlistment state: Florida
Enlistment city: Jacksonville Army Air Field
Branch: Air Corps
Branch code: Air Corps
Grade code: private
Component: regular army (including officers, nurses, warrant officers, and enlisted men)
Source: selective service within 3 months of discharge 11 punch
Education: 4 years of high school
Civil occupation: geodetic computer
Marital status: single, without dependents
Height: 69
Weight: 146

Extract from Michigan Deaths, 1971-1996:
Name: William T Marlatt
Gender: male
Birth date: 18 Jun 1918
Death date: 17 Dec 1986
Residence: Harbor Beach, Huron, Michigan
Place of death: Bad Axe, Huron, Michigan

Obituary from the "Times" of Harbor Beach, Michigan dated 25 Dec 1986:
William Marlatt
William T. Marlatt, 68, Harbor Beach, died Wednesday, Dec. 17th at Four Seasons Health Care Center, Bad Axe, after a long illness.
He was born June 18, 1918, son of the late Albert and Helen (Tennant) Marlatt.
He married Margaret Malfait in Mt. Clemens in 1950. She preceded him in death in 1981.
Ha was a resident of Harbor Beach the last 10 years; a member of St. Paul's Episcopal Church, Bad Axe; a member of AmVets of Mt. CIemes and a World War II veteran of the Pacific Theater.
Surviving are a brother, Richard Marlatt, Oregon, a sister, Mary Boston of Lexington; and several nieces and nephews
Services were 1 p.m. Friday at Grace Episcopal Church, Mt. CIemens. The Rev. Mark Jenkins, pastor of St. Paul's Episcopal Church, officated with burial in St. Peter's Cemetery, Mt. Clemens.
Local arrangements were by the Champagne Funeral Chapels, Elton and Caseville.

He married Margaret A. Malfait 31 Aug 1950 in Mount Clemens, Macomb, Michigan.