John Mcdonald — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Erie-County, New York

Our Model Tree links this John Mcdonald across the 1920, 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 4-person household.

Age 55 b. ~1885 Male Head Born: Scotland Married

1940 Census Record Details

Census Year	1940
Location	Erie-County, New York
Surname	McDonald
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Buffalo city
1935 Residence (County)	Erie
Naturalization Status	Naturalized
Additional Details
Occupation	Body-builder
Industry	Refrigerated Truck Body Plant
Class of Worker	PW
Hours Worked	32
Income (1939)	1000
Highest Grade	No 8
1935 Residence	Same house
Birth Country	Scotland
Birthplace (normalized)	scotland
Occupation	Body-Builder
Township / Ward	Buffalo City
Est. Birth Year	~1885

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
John Mcdonald	Head	—	55	~1885
William Mcdonald	Son	—	19	~1921
Hector Mcdonald	Son	—	25	~1915
Isabella Mcdonald	Spouse	—	53	~1887

Census Appearances

1920

Erie, New …

Other, age 33

Erie, New York · implied b. ~1887 — 50 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McDonald
Given Name	John
Relationship to Head	Roomer
Sex	M
Color / Race	White
Age	33
Marital Status	Single
Birthplace	Scotland
Year of Immigration	1902
Naturalization Status	Alien
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Occupation	Helper
Industry	Building
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Scotch
Birth Country	Scotland
Birthplace (normalized)	scotland

1930

Erie, New …

Head, age 45

Erie, New York · implied b. ~1885 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McDonald
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Scotland
Naturalization Status	First papers filed
Year of Immigration	1903
Age at First Marriage	28
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Occupation	Body Builder
Industry	Motor Bodies
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Home Owned/Rented	O
Home Value / Rent	5000
Birth Country	Scotland
Birthplace (normalized)	scotland

1940

Erie-County, New …

Head, age 55

Erie-County, New York · implied b. ~1885 — 4 household members

Surname	McDonald
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Buffalo city
1935 Residence (County)	Erie
Naturalization Status	Naturalized
Occupation	Body-builder
Industry	Refrigerated Truck Body Plant
Class of Worker	PW
Hours Worked	32
Income (1939)	1000
Highest Grade	No 8
1935 Residence	Same house
Birth Country	Scotland
Birthplace (normalized)	scotland

Model Tree

Linked across censuses

Our Model Tree links John Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Mcdonald

Head · 1940 · age 55 · b. ~1885 · New York

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

Original Census Page

1940 US Federal Census — Erie-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02834-00607)

Line	Name	Age	Relation	Occupation	Birthplace
1	Ronald Smith	8	Son	—	New York
2	George Bonner	39	Head	Tool-Maker	New York
3	Edna Bonner	32	Wife	—	New York
4	Alice Bonner	8	Daughter	—	New York
5	George Jr. Bonner	6	Son	—	New York
6	George Bjerling	35	Head	Painter-Foreman	New York
7	Pauline Bjerling	36	Wife	—	New York
8	George, Jr. Bjerling	13	Son	—	New York
9	Edward Bjerling	10	Son	—	New York
10	Sandra Bjerling	0	Daughter	—	New York
11	John C. Ott	44	Head	Foreman	New York
12	Theresa Ott	47	Wife	—	New York
13	Lorraine Ott	19	Daughter	Servant	New York
14	John Jr. Ott	17	Son	—	New York
15	Gerald Ott	12	Son	—	New York
16	Raymond Ott	9	Son	—	New York
17	Eugene Chamberland	24	Son-in-law	Truck-Driver	New York
18	Muriel Chamberland	22	Daughter	—	New York
19	Joseph W. Schwint	48	Head	Janitor	Pennsylvania
20	Estelle Schwint	45	Wife	Matron	Missouri
21	Thomas Costello	31	Son-in-law	Mechanic	New York
22	Hope Costello	10	Daughter	—	New York
23	John Mcdonald THIS PERSON	55	Head	Body-Builder	Scotland
24	Isabella Mcdonald	53	Wife	—	Scotland
25	Hector J. Mcdonald	25	Son	Salesman	Scotland
26	William A. Mcdonald	19	Son	Clerk	Scotland
27	Joseph Reeb	45	Head	Upholsterer	New York
28	Lillian Reeb	37	Wife	—	New York
29	Dorothy Reeb	17	Daughter	Waitress	New York
30	Joan Reeb	6	Daughter	—	New York
31	Carol Reeb	3	Daughter	—	New York
32	Sharlene Reeb	1	Daughter	—	New York
33	George Chamberlain	51	Head	Switchman	New York
34	George Jr. Chamberlain	24	Son	Salesman	New York
35	Alice Chamberlain	17	Daughter	—	New York
36	Joseph Chamberlain	14	Son	—	New York
37	James Chamberlain	12	Son	—	New York
38	Herbert J. Molser	44	Head	Manager	New York
39	Loretta Molser	44	Wife	Saleslady	New York
40	Irene Molser	18	Daughter	Waitress	New York

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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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