James Mason — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Lucas-County, Ohio

Our Model Tree links this James Mason across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 7-person household.

Age 59 b. ~1881 Male Head Born: Indiana Married

1940 Census Record Details

Census Year	1940
Location	Lucas-County, Ohio
Surname	Mason
Given Name	James W
Relationship to Head	Head
Sex	M
Color / Race	White
Age	59
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Toledo
1935 Residence (County)	Lucas
Additional Details
Occupation	Engineer
Industry	R.R. Steam
Class of Worker	PW
Hours Worked	40
Income (1939)	2500
Highest Grade	H 1
1935 Residence	Same house
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Occupation	Engineer
Township / Ward	Toledo
Est. Birth Year	~1881

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.

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

Name	Relation to head	Relative to James	Age	Birth yr
Janet Ladd	Daughter	—	20	~1920
James Mason	Head	—	59	~1881
Norman Ladd	Other	—	2	~1938
Robert Ladd	Other	—	22	~1918
Norman Mason	Son	—	22	~1918
Robert Mason	Son	—	24	~1916
Eva Mason	Spouse	—	55	~1885

Census Appearances

1920

Lucas, Ohio

Head, age 38

Lucas, Ohio · implied b. ~1882 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mason
Given Name	James W.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Virginia
Mother's Birthplace	Ohio
Occupation	Engineer
Industry	Locomotive
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1930

Lucas, Ohio

Head, age 49

Lucas, Ohio · implied b. ~1881 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mason
Given Name	James W.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Indiana
Age at First Marriage	25
Father's Birthplace	West Virginia
Mother's Birthplace	Indiana
Occupation	Locomotive Eng.
Industry	Rail Road
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	6000
Radio Set	R
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1940

Lucas-County, Ohio

Head, age 59

Lucas-County, Ohio · implied b. ~1881 — 7 household members

Surname	Mason
Given Name	James W
Relationship to Head	Head
Sex	M
Color / Race	White
Age	59
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Toledo
1935 Residence (County)	Lucas
Occupation	Engineer
Industry	R.R. Steam
Class of Worker	PW
Hours Worked	40
Income (1939)	2500
Highest Grade	H 1
1935 Residence	Same house
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

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

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This person

Anchor record

James Mason

Head · 1940 · age 59 · b. ~1881 · Ohio

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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 — Lucas-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03262-00899)

Line	Name	Age	Relation	Occupation	Birthplace
41	John Kosmider	15	Son	—	Ohio
42	Donald Kosmider	14	Son	—	Ohio
43	Arthur Kosmider	12	Son	—	Ohio
44	Patricia Kosmider	10	Daughter	—	Ohio
45	Ethel Kosmider	8	Daughter	—	Ohio
46	Barbara Kosmider	5	Daughter	—	Ohio
47	Steve Boranski	49	Head	Laborer	Poland
48	Stella Boranski	40	Wife	—	Poland
49	Pauline Boranski	22	Daughter	Clerk	Ohio
50	Theodore Boranski	21	Son	Timekeeper	Ohio
51	Chester Boranski	20	Son	Truck Driver	Ohio
52	Edward Boranski	18	Son	Odd Jobs	Ohio
53	Wanda Boranski	14	Daughter	—	Ohio
54	Joe Boranski	12	Son	—	Ohio
55	Emil Blayz	37	Head	Salesman	Ohio
56	Louise Blayz	65	Mother	—	Michigan
57	Sadie Bennett	60	Aunt	Buyer	Michigan
58	William Bowman	67	Head	—	Indiana
59	Bertha Bowman	68	Wife	—	Indiana
60	James W Mason THIS PERSON	59	Head	Engineer	Indiana
61	Eva M Mason	55	Wife	—	Ohio
62	Robert Mason	24	Son	Attendant	Ohio
63	Norman Mason	22	Son	Clerk	Ohio
64	Robert Ladd	22	Son in law	Laborer	Ohio
65	Janet Ladd	20	Daughter	—	Ohio
66	Norman Ladd	2	Grandson	—	Ohio
67	James Hamann	41	Head	—	Ohio
68	Jane Hamann	41	Wife	—	Ohio
69	Carl Raufer	52	Head	Laborer	Ohio
70	Alice Raufer	35	Wife	—	Ohio
71	Julia Bell Raufer	8	Daughter	—	Texas
72	Henrietta Raufer	3	Daughter	—	Ohio
73	Charles Raufer	2	Son	—	Ohio
74	Bedford Atchley	46	Head	Machine Oper	Tennessee
75	Zora Atchley	36	Wife	—	Tennessee
76	Geo Atchley	19	Son	New Worker	Kentucky
77	Melvin Atchley	15	Son	—	Ohio
78	Inell Atchley	12	Daughter	—	Ohio
79	Blanche Adams	41	Head	—	Ohio
80	Lee West Swank	42	Niece	Information Clerk	Georgia

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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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