William Pratt — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Oakland-County, Michigan

Our Model Tree links this William Pratt across the 1920, 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed), with identified parents Lillian & Walter — first a son (b.~1916), then head of a 2-person household.

Age 24 b. ~1916 Male Son Born: Michigan Single

1940 Census Record Details

Census Year	1940
Location	Oakland-County, Michigan
Surname	Pratt
Given Name	William
Relationship to Head	Son
Sex	M
Color / Race	White
Age	24
Marital Status	Single
Birthplace	Michigan
1935 Residence (City)	Des Moines
1935 Residence (County)	Polk
Additional Details
Class of Worker	0
Hours Worked	0
Highest Grade	C 5
1935 Residence	Iowa
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Township / Ward	Royal Oak City
Est. Birth Year	~1916

Household Members

Census records only state relationship to the household head. Pairwise kinship is derived (~90–95% accurate), not recorded. Step/blended families and boarders can break it.

2 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to William	Age	Birth yr
William Pratt	Son	—	24	~1916
Lillian Pratt	Spouse	—	57	~1883

Census Appearances

1920

Oakland, Michigan

Son, age 4

Oakland, Michigan · implied b. ~1916 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Pratt
Given Name	William B.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	4
Marital Status	Single
Birthplace	Michigan
Father's Birthplace	Michigan
Mother's Birthplace	Iowa
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1930

Oakland, Michigan

Son, age 14

Oakland, Michigan · implied b. ~1916 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Pratt
Given Name	William B.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	14
Marital Status	Single
Birthplace	Michigan
Father's Birthplace	Michigan
Mother's Birthplace	Iowa
Occupation	none
Can Read/Write	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

Oakland-County, Michigan

Son, age 24

Oakland-County, Michigan · implied b. ~1916 — 2 household members

Surname	Pratt
Given Name	William
Relationship to Head	Son
Sex	M
Color / Race	White
Age	24
Marital Status	Single
Birthplace	Michigan
1935 Residence (City)	Des Moines
1935 Residence (County)	Polk
Class of Worker	0
Hours Worked	0
Highest Grade	C 5
1935 Residence	Iowa
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

Model Tree

Model Tree available

Our Model Tree links William Pratt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lillian Pratt (~0.92 confidence) and father Walter Pratt (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Mother

Lillian Pratt

b. ~1883

Source mother

● Household · direct · ~0.92

Father

Walter Pratt

b. ~1884

Source father

● Household · direct · ~0.92

This person

Anchor record

William Pratt

Son · 1940 · age 24 · b. ~1916 · Michigan

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Oakland-County, Michigan Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01802-00307)

Line	Name	Age	Relation	Occupation	Birthplace
41	Lillian Pratt	57	Wife	—	Iowa
42	William Pratt THIS PERSON	24	Son	—	Michigan
43	Walter Chaffee	54	Head	—	Michigan
44	Lottie Chaffee	66	Wife	—	New Jersey
45	William Burr	38	Head	Clerk	Michigan
46	Leona Burr	36	Wife	—	Michigan
47	Janet Burr	6	Daughter	—	Michigan
48	Lucian Brown	41	Head	Salesman	Kentucky
49	Claude Brown	38	Wife	—	Kentucky
50	Marjorie Brown	12	Daughter	—	Michigan
51	Peter Mason	28	Head	Salesman	Michigan
52	Vera Mason	25	Wife	—	Michigan
53	Vernald Horn	39	Head	Gasoline Attd.	Michigan
54	Ethel Horn	35	Wife	—	Michigan
55	Rilla Horn	11	Daughter	—	Michigan
56	George Mehan	27	Head	Store Manager	New York
57	Julia Mehan	26	Wife	—	Michigan
58	Thomas Mehan	2	Son	—	Michigan
59	George Martin	46	Head	Warehouseman	Rhode Island
60	Eliza Martin	47	Wife	Nurse	Ohio
61	George Martin	9	Son	—	Michigan
62	Marilyn Martin	7	Daughter	—	Michigan
63	Ross Hardy	43	Head	Machinist	Michigan
64	Ida Hardy	43	Wife	—	Michigan
65	Norman Hardy	10	Son	—	Michigan
66	Archie Coates	41	Head	Supervisor	Illinois
67	Ruth Coates	42	Wife	—	Michigan
68	Barbara Coates	21	Daughter	Clerk	Michigan
69	Donald Coates	20	Son	—	Michigan
70	Robert Coates	17	Son	—	Michigan
71	Norman Coates	15	Son	—	Michigan
72	Gordon Coates	9	Son	—	Michigan
73	Edmund Burke	47	Head	Projection	Illinois
74	Lucille Burke	40	Wife	—	Indiana
75	Jean Burke	15	Daughter	—	Michigan
76	Stanley Burke	10	Son	—	Michigan
77	Caroline Burke	6	Daughter	—	Michigan
78	Glenn Lawyer	31	Head	Clerical	Indiana
79	O'Jane Lawyer	30	Wife	—	Missouri
80	Thomas Lawyer	4	Son	—	Michigan

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Pedigree Summary

William

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.

Source: National Archives and Records Administration (NARA)

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