John Crawford — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · New-Castle-County, Delaware

Our Model Tree links this John Crawford across the 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 3-person household.

Age 76 b. ~1864 Male Head Born: Delaware Married

1940 Census Record Details

Census Year	1940
Location	New-Castle-County, Delaware
Surname	Crawford
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	76
Marital Status	Married
Birthplace	Delaware
1935 Residence (City)	Elsmere
1935 Residence (County)	New Castle
Additional Details
Occupation	Pattern maker
Industry	Chemical company
Class of Worker	PW
Hours Worked	0
Income (1939)	0
Highest Grade	8
1935 Residence	Same place
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware
Occupation	Pattern Maker
Township / Ward	Elsmere
Est. Birth Year	~1864

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 John	Age	Birth yr
Helen Crawford	Daughter	—	41	~1899
John Crawford	Head	—	76	~1864
Mary Crawford	Spouse	—	73	~1867

Census Appearances

1920

New Castle, …

Head, age 56

New Castle, Delaware · implied b. ~1864 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Crawford
Given Name	John W.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	56
Marital Status	Married
Birthplace	Delaware
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Occupation	Manager
Industry	Hardware Store
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

1930

New Castle, …

Head, age 66

New Castle, Delaware · implied b. ~1864 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Crawford
Given Name	John W.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	66
Marital Status	Married
Birthplace	Delaware
Age at First Marriage	28
Father's Birthplace	Scotland
Mother's Birthplace	Delaware
Occupation	Stationary Engineer
Industry	Machine Shop
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	7000
Home Value / Rent	R
Veteran	O
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

1940

New-Castle-County, Delaware

Head, age 76

New-Castle-County, Delaware · implied b. ~1864 — 3 household members

Surname	Crawford
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	76
Marital Status	Married
Birthplace	Delaware
1935 Residence (City)	Elsmere
1935 Residence (County)	New Castle
Occupation	Pattern maker
Industry	Chemical company
Class of Worker	PW
Hours Worked	0
Income (1939)	0
Highest Grade	8
1935 Residence	Same place
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

Model Tree

Linked across censuses

Our Model Tree links John Crawford 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 Crawford

Head · 1940 · age 76 · b. ~1864 · Delaware

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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 — New-Castle-County, Delaware Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00545-00460)

Line	Name	Age	Relation	Occupation	Birthplace
1	Lydia Hall	33	Wife	Housewife	Delaware
2	Lillian Hall	9	Daughter	—	Delaware
3	Margaret Hall	4	Daughter	—	Delaware
4	Cletus Cantrell	32	Head	Leather Worker	Oklahoma
5	Evelyn Cantrell	27	Wife	Housewife	Delaware
6	Caroline Cantrell	8	Daughter	—	Delaware
7	Albert Demers	52	Head	Signalman	Penna.
8	Grace Demers	50	Wife	Housewife	Penna.
9	Edward Thompson	69	Head	Grocery Store	Delaware
10	Anna Thompson	73	Wife	Housewife	Delaware
11	Evelyn Derrickson	72	Head	Housewife	Delaware
12	Miriam R. Derrickson	41	Daughter	Stenographer	Delaware
13	James R. Gillis	50	Head	Housewife	Delaware
14	Doris Gillis	22	Daughter	Tabulator	Delaware
15	Norman E. Kelly	29	Head	Clerk	Penna.
16	Effie Mae Kelly	29	Wife	Stenographer	Penna.
17	Charles Hastings	55	Head	Contractor	Maryland
18	Grace Hastings	50	Wife	Housewife	Penna.
19	Jane Clarissa Hastings	77	Aunt	—	Penna.
20	William Moore	45	Head	Meat Cutter	Delaware
21	Lillian Moore	41	Wife	Housewife	Delaware
22	Virginia Moore	16	Daughter	—	Delaware
23	John J. Crawford THIS PERSON	76	Head	Pattern Maker	Delaware
24	Mary F. Crawford	73	Wife	Housewife	Delaware
25	Helen Crawford	41	Daughter	Computer	Delaware
26	James S. Wilson	53	Head	Clerk	Maryland
27	Mary C. Wilson	54	Wife	Housewife	Penna.
28	Ella L. Wilson	19	Daughter	Bookkeeper	Delaware
29	Franklin S. Wilson	17	Son	—	Delaware
30	Claire Wilson	14	Daughter	—	Delaware
31	Margaret Claycomb	25	Daughter	Housewife	Delaware
32	Lee Justice	28	Lodger	Welder	Virginia
33	Arthur D. Evans	25	Lodger	Welder	Virginia
34	Ellis D. Talley	34	Head	Poultry Dealer	Delaware
35	Edna Talley	22	Wife	Housewife	Delaware
36	Harry Foster	35	Head	Laborer	Delaware
37	Mary Foster	38	Wife	Housewife	Penna.
38	Extra Line	None	—	—	—
39	Jack Jenkins	53	Head	Plumber	Delaware
40	Elizabeth Jenkins	54	Wife	Housewife	Delaware

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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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