James Mason — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Baltimore-City-County, Maryland

Our Model Tree links this James Mason across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 6-person household.

Age 51 b. ~1889 Male Head Born: Maryland Married

1940 Census Record Details

Census Year	1940
Location	Baltimore-City-County, Maryland
Surname	Mason
Given Name	James C.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Additional Details
Occupation	Policeman
Industry	Police Department
Class of Worker	GW
Hours Worked	60
Income (1939)	614
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Occupation	Policeman
Township / Ward	Baltimore City
Est. Birth Year	~1889

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.

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

Name	Relation to head	Relative to James	Age	Birth yr
Ruth Mason	Daughter	—	15	~1925
James Mason	Head	—	51	~1889
Richard Joy	Other	—	29	~1911
William Joy	Other	—	36	~1904
William Joy	Other	—	74	~1866
Jennie Mason	Spouse	—	46	~1894

Census Appearances

1920

Baltimore, Maryland

Other, age 32

Baltimore, Maryland · implied b. ~1888 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mason
Given Name	James
Relationship to Head	Lodger
Sex	M
Color / Race	Black
Age	32
Marital Status	Single
Birthplace	Maryland
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1930

Baltimore, Maryland

Other, age 40

Baltimore, Maryland · implied b. ~1890 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Mason
Given Name	James
Relationship to Head	Roomer
Sex	M
Color / Race	Black
Age	40
Marital Status	Married
Birthplace	Maryland
Age at First Marriage	20
Father's Birthplace	Maryland
Mother's Birthplace	Maryland
Occupation	Laborer
Industry	City Streets
Class of Worker	W
Can Read/Write	Yes
Veteran	No
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Baltimore-City-County, Maryland

Head, age 51

Baltimore-City-County, Maryland · implied b. ~1889 — 6 household members

Surname	Mason
Given Name	James C.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Baltimore City
1935 Residence (County)	Baltimore City
Occupation	Policeman
Industry	Police Department
Class of Worker	GW
Hours Worked	60
Income (1939)	614
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

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.

Show:

This person

Anchor record

James Mason

Head · 1940 · age 51 · b. ~1889 · Maryland

★ 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 — Baltimore-City-County, Maryland Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01539-00037)

Line	Name	Age	Relation	Occupation	Birthplace
1	Nettie Funk	58	Wife	—	Maryland
2	Albert Ward	34	Son	Office Work	Maryland
3	James C. Mason THIS PERSON	51	Head	Policeman	Maryland
4	Jennie R. Mason	46	Wife	—	Maryland
5	Ruth N. Mason	15	Daughter	—	Maryland
6	William J. Joy	74	Father-in-law	—	Virginia
7	William L. Joy	36	Brother-in-law	Undertaker	Maryland
8	Richard W. Joy	29	Brother-in-law	Roofing	Maryland
9	Charles Tracey	63	Head	Blacksmith	Maryland
10	Addie Tracey	67	Wife	—	Maryland
11	Cynthia Tracey	37	Daughter	—	Maryland
12	Gladys Tracey	35	Daughter	Stenographer	Maryland
13	Melchoir Tracey	32	Son	Salesman	Maryland
14	Arthur Prescott	46	Son-in-law	Caretaker	Michigan
15	Mary Prescott	39	Daughter	—	Maryland
16	Charles Prescott	11	Grandson	—	Maryland
17	William Lindner	46	Head	Supervisor	Maryland
18	Betty Lindner	42	Wife	—	Missouri
19	Michael Gutfleisch	40	Head	Mechanic	Germany
20	Marjorie Gutfleisch	33	Wife	—	Maryland
21	Michael Gutfleisch	5	Son	—	Maryland
22	Fritz A. Gutfleisch	2	Son	—	Maryland
23	Elizabeth Gutfleisch	27	Sister	Cook	Germany
24	Albert Diem	29	Head	Plumbing	Maryland
25	Ruth Diem	28	Wife	—	Maryland
26	Ruthie Diem	5	Daughter	—	Maryland
27	James Albert Diem	2	Son	—	Maryland
28	Edith Kraussinger	33	Head	—	Rhode Island
29	Edith Dustman	15	Daughter	—	Maryland
30	George R. Dustman	8	Son	—	Maryland
31	Earl Brehm	28	Head	Crane Operator	Maryland
32	Lena Brehm	29	Wife	—	Pennsylvania
33	Elaine Brehm	3	Daughter	—	Maryland
34	Raymond Brehm	1	Son	—	Maryland
35	Walter Bode	39	Head	Carpenter	Germany
36	Catherine Bode	31	Wife	—	Maryland
37	Janet Bode	11	Daughter	—	Maryland
38	Alexander Herold	65	Head	—	Hungary
39	Mary Herold	58	Wife	—	Hungary
40	James W. Stern	46	Head	Inspector	Maryland

Search for James Mason

All James Mason Census Records Discover Mason Family Tree

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