Lillian Clark — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Delaware-County, Pennsylvania

Our Model Tree links this Lillian Clark across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 3-person household.

Age 53 b. ~1887 Female Spouse Born: Delaware Married

1940 Census Record Details

Census Year	1940
Location	Delaware-County, Pennsylvania
Surname	Clark
Given Name	Lillian (V)
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Delaware
1935 Residence (City)	Prospect Park
1935 Residence (County)	Delaware
Additional Details
Occupation	Helper
Industry	Metal Works
Class of Worker	PW
Hours Worked	40
Income (1939)	1144
Highest Grade	G-3
1935 Residence	Same place
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware
Occupation	Helper
Township / Ward	Prospect Park
Est. Birth Year	~1887

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 Lillian	Age	Birth yr
Virginia Clark	Daughter	—	23	~1917
George Clark	Head	—	53	~1887
Lillian Clark	Spouse	—	53	~1887

Census Appearances

1920

Delaware, Pennsylvania

Spouse, age 31

Delaware, Pennsylvania · implied b. ~1889 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clarke
Given Name	Lillian
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	31
Marital Status	Married
Birthplace	Delaware
Father's Birthplace	Connecticut
Mother's Birthplace	New Jersey
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

1930

Delaware, Pennsylvania

Spouse, age 42

Delaware, Pennsylvania · implied b. ~1888 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Lillian F
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Delaware
Age at First Marriage	24
Father's Birthplace	Connecticut
Mother's Birthplace	New Jersey
Can Read/Write	Yes
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

1940

Delaware-County, Pennsylvania

Spouse, age 53

Delaware-County, Pennsylvania · implied b. ~1887 — 3 household members

Surname	Clark
Given Name	Lillian (V)
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Delaware
1935 Residence (City)	Prospect Park
1935 Residence (County)	Delaware
Occupation	Helper
Industry	Metal Works
Class of Worker	PW
Hours Worked	40
Income (1939)	1144
Highest Grade	G-3
1935 Residence	Same place
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

Model Tree

Linked across censuses

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

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This person

Anchor record

Lillian Clark

Spouse · 1940 · age 53 · b. ~1887 · Pennsylvania

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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 — Delaware-County, Pennsylvania Open full size

Page Contents

29 people indexed on this census page (nara:1940:m-t0627-03494-00547)

Line	Name	Age	Relation	Occupation	Birthplace
41	Katherine (V) Kirk	49	Wife	Executive	Pennsylvania
42	Helen (V) Connors	69	Head	—	Pennsylvania
43	Emma Gideon	66	Sister	—	Pennsylvania
44	Victor Majewski	26	Head	Welder	Pennsylvania
45	Lottie (V) Majewski	24	Wife	—	Pennsylvania
46	William Craig	35	Head	Carpenter	New York
47	Anna (V) Craig	31	Wife	—	Pennsylvania
48	Louise Ann Craig	8	Daughter	—	Pennsylvania
49	Norman Bruce Craig	5	Son	—	New York
50	George S. (V) Miller	84	Head	—	New Jersey
51	Arthur (V) Gerhard	54	Head	Teacher	New York
52	Mary Gerhard	28	Daughter	Teacher	Idaho
53	Howard Gerhard	22	Son	Salesman	Pennsylvania
54	William H. Davis	44	Head	—	Delaware
55	William Jr. Davis	18	Son	Engineer	Pennsylvania
56	Alfred (V) Karpinski	35	Head	Coal Roller	New York
57	Sophia May Karpinski	25	Wife	—	New York
58	George Clark	53	Head	Sander	Pennsylvania
59	Lillian (V) Clark THIS PERSON	53	Wife	Helper	Delaware
60	Virginia Clark	23	Daughter	—	Pennsylvania
61	William Turner	21	Head	—	Pennsylvania
62	Emily (V) Turner	20	Wife	—	Pennsylvania
63	Virginia (V) Anderson	42	Head	Layout Man	Pennsylvania
64	William Anderson	21	Son	Clerk	Pennsylvania
65	Robert Anderson	20	Son	Operator	Pennsylvania
66	Norman Dougherty	23	Head	Nurse	Pennsylvania
67	Ann (V) Dougherty	22	Wife	Sales Mgr.	Pennsylvania
68	Arthur C. Armitage	51	Head	Student	Massachusetts
69	Doreen Elizabeth M. Armitage	23	Wife	—	Ireland

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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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