Thomas Mcdonald — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Montgomery-County, Ohio

Our Model Tree links this Thomas Mcdonald across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Ohio (XGBoost, ~Confirmed), with identified parents Thurman & Elizabeth — first a head (b.~1913), then head of a 5-person household.

Age 27 b. ~1913 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Montgomery-County, Ohio
Surname	McDonald
Given Name	Thomas
Relationship to Head	Head
Sex	M
Color / Race	White
Age	27
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Dayton
1935 Residence (County)	Montgomery
Additional Details
Occupation	City Clerk
Industry	City Engineer Office
Class of Worker	GW
Hours Worked	40
Income (1939)	266
Highest Grade	H-4
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	City Clerk
Township / Ward	Dayton
Est. Birth Year	~1913

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.

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

Name	Relation to head	Relative to Thomas	Age	Birth yr
Thomas Mcdonald	Head	—	27	~1913
Valerie Mcdonald	Daughter	—	1	~1939
Barbara Mcdonald	Daughter	—	3	~1937
Dale Mcdonald	Son	—	5	~1935
Nealy Mcdonald	Spouse	—	26	~1914

Census Appearances

1920

Montgomery, Ohio

Son, age 7

Montgomery, Ohio · implied b. ~1913 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McDonald
Given Name	Thomas
Relationship to Head	Son
Sex	M
Color / Race	White
Age	7
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Montgomery, Ohio

Son, age 17

Montgomery, Ohio · implied b. ~1913 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McDonald
Given Name	Thomas
Relationship to Head	Son
Sex	M
Color / Race	White
Age	17
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Montgomery-County, Ohio

Head, age 27

Montgomery-County, Ohio · implied b. ~1913 — 5 household members

Surname	McDonald
Given Name	Thomas
Relationship to Head	Head
Sex	M
Color / Race	White
Age	27
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Dayton
1935 Residence (County)	Montgomery
Occupation	City Clerk
Industry	City Engineer Office
Class of Worker	GW
Hours Worked	40
Income (1939)	266
Highest Grade	H-4
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Thurman Mcdonald

b. ~1871

Source father

● Household · direct · ~0.92

Mother

Elizabeth Mcdonald

b. ~1875

Source mother

● Household · direct · ~0.92

This person

Anchor record

Thomas Mcdonald

Head · 1940 · age 27 · b. ~1913 · Ohio

★ 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 — Montgomery-County, Ohio Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-03256-00772)

Line	Name	Age	Relation	Occupation	Birthplace
41	Mis Crow	None	—	—	—
44	Fred P. Sweeney	47	Head	Automobile Repair Man	Kentucky
45	Emma Sweeney	46	Wife	—	Kentucky
46	Cleatus M. Sweeney	21	Son	Truck Driver	Kentucky
47	Jennings Borders	27	Head	Machinist	Ohio
48	Helen Borders	28	Wife	—	Ohio
49	Lalele Borders	3	Daughter	—	Ohio
50	Lowell Borders	2	Son	—	Ohio
51	Walter Gatty	34	Head	Clerk	Indiana
52	Sebastian Eileen Gatty	19	Daughter	New Worker	Indiana
53	Barbara J. Gatty	1	Daughter	—	Ohio
54	John J. Smith	68	Head	Medical Doctor	Missouri
55	Ella A. Smith	64	Wife	Receptionist	Ohio
56	Elsie D. Smith	38	Daughter	Writer	Ohio
57	Thomas Mcdonald THIS PERSON	27	Head	City Clerk	Ohio
58	Nealy Mcdonald	26	Wife	—	Ohio
59	Dale Mcdonald	5	Son	—	Ohio
60	Barbara Mcdonald	3	Daughter	—	Ohio
61	Valerie Mcdonald	1	Daughter	—	Ohio
62	Thomas Mcdonald	69	Head	—	Ohio
63	Elizabeth Mcdonald	65	Wife	—	Ohio
64	Joseph Jones	45	Head	Grinder	Virginia
65	May C. Jones	41	Wife	—	Ohio
66	Carl Jones	19	Son	Laborer	Ohio
67	Cleo R. Jones	12	Son	—	Ohio
68	Fred E. Anderson	51	Head	Printer	Indiana
69	Essie Anderson	48	Wife	—	Ohio
70	Carl J. Bruner	25	Head	Automobile Washing	Indiana
71	Mary J. Bruner	20	Wife	Sales Lady	Kentucky
72	Mary A. Weber	83	Head	—	Ohio
73	Catherine Hundback	70	Sister	—	Ohio
74	James Morris	74	Head	—	Ireland
75	Irene Morris	42	Daughter	Book Keeper	Ohio
76	John Morris	40	Son	—	Ohio
77	Nellie Wells	69	Roomer	—	Ireland
78	Balance Daniel	42	Roomer	Spot Welder	New York
79	William Mcdaniel	40	Head	Maker	Indiana
80	Gertrude Mcdaniel	34	Wife	—	Missouri

Search for Thomas Mcdonald

All Thomas Mcdonald Census Records Discover Mcdonald Family Tree

Pedigree Summary

Thomas

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)

Report inaccurate data