George Black — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Jefferson-County, Colorado

Our Model Tree links this George Black across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 3-person household.

Age 75 b. ~1865 Male Head Born: Maine Married

1940 Census Record Details

Census Year	1940
Location	Jefferson-County, Colorado
Surname	Black
Given Name	George
Relationship to Head	Head
Sex	M
Color / Race	White
Age	75
Marital Status	Married
Birthplace	Maine
1935 Residence (City)	Griffith
1935 Residence (County)	Jefferson
Additional Details
Class of Worker	OA
Hours Worked	8
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same House
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine
Township / Ward	Griffith
Est. Birth Year	~1865

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.

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

Name	Relation to head	Relative to George	Age	Birth yr
George Black	Head	—	75	~1865
George Black	Son	—	46	~1894
Lola Black	Spouse	—	63	~1877

Census Appearances

1920

Jefferson, Colorado

Head, age 55

Jefferson, Colorado · implied b. ~1865

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Black
Given Name	George F
Relationship to Head	Head
Sex	M
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Maine
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Farmer
Industry	Farm
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

1930

Jefferson, Colorado

Head, age 64

Jefferson, Colorado · implied b. ~1866 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Black
Given Name	George F.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	64
Marital Status	Married
Birthplace	Maine
Age at First Marriage	27
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	4000
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

1940

Jefferson-County, Colorado

Head, age 75

Jefferson-County, Colorado · implied b. ~1865 — 3 household members

Surname	Black
Given Name	George
Relationship to Head	Head
Sex	M
Color / Race	White
Age	75
Marital Status	Married
Birthplace	Maine
1935 Residence (City)	Griffith
1935 Residence (County)	Jefferson
Class of Worker	OA
Hours Worked	8
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same House
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

Model Tree

Linked across censuses

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

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This person

Anchor record

George Black

Head · 1940 · age 75 · b. ~1865 · Colorado

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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 — Jefferson-County, Colorado Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-00465-00781)

Line	Name	Age	Relation	Occupation	Birthplace
41	James Landis	60	Head	—	Lithuania
42	Helen P. Landis	57	Wife	—	Lithuania
43	Chester Lawrence	24	Head	Switchman	Colorado
44	Marguerite Lawrence	22	Wife	—	Colorado
45	Charlene Lawrence	3	Daughter	—	Colorado
46	Rose S. King	65	Head	Owner	Kentucky
47	Frank W. King	45	Son	Owner	Missouri
48	Clara Mccartney	59	Head	Gen Work	Missouri
49	Lewis Fisher	77	Boarder	Finisher	Colorado
50	Cheney Baker	58	Head	President	Indiana
51	Mary J. Baker	35	Wife	—	Wyoming
52	Jr. Cheney	29	Son	Manager	Colorado
53	Steven Cheney	16	Son	—	Colorado
54	Sam Gourley	38	Head	Carpenter	Iowa
55	Sylvia Gourley	38	Wife	—	Nebraska
56	Robert Gourley	18	Son	—	Nebraska
57	Lucille Gourley	17	Daughter	—	Nebraska
58	Kenneth Gourley	14	Son	—	Nebraska
59	Calvin Gourley	9	Son	—	Nebraska
60	Stanley Gourley	6	Son	—	Nebraska
61	George W. Rogers	50	Head	Watchman	Nebraska
62	Kate Rogers	54	Wife	—	Nebraska
63	Bud Skinner	25	Step-son	Labour	Kansas
64	Charles Skinner	21	Step-son	Labour	Kansas
65	Arthur D. Hurd	60	Head	Watchman	Canada
66	Clinton Hurd	20	Son	At Home	Colorado
68	Jacob E. Shields	65	Head	—	Indiana
69	Lloyd Green	47	Head	—	Iowa
70	Gifford Alley	42	Head	Truck Driver	Oklahoma
71	Caroline Alley	34	Wife	—	Pennsylvania
72	Stella Alley	15	Daughter	—	Colorado
73	Pauline Alley	12	Daughter	—	Colorado
74	Bernice Alley	9	Daughter	—	Colorado
75	Helen Alley	7	Daughter	—	Oklahoma
76	Raymond Alley	6	Son	—	Oklahoma
77	Clell Alley	3	Son	—	Colorado
78	George Black THIS PERSON	75	Head	—	Maine
79	Lola A. Black	63	Wife	—	Colorado
80	George Jr. Black	46	Son	Truck Driver	Colorado

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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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