Martha Clark — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Ramsey-County, Minnesota

Our Model Tree links this Martha Clark across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 3-person household.

Age 55 b. ~1885 Female Head Born: Norway Widowed

1940 Census Record Details

Census Year	1940
Location	Ramsey-County, Minnesota
Surname	Clark
Given Name	Martha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	55
Marital Status	Widowed
Birthplace	Norway
1935 Residence (City)	St. Paul
1935 Residence (County)	Ramsey
Naturalization Status	Naturalized
Additional Details
Occupation	milk chairman
Industry	WPA project school
Class of Worker	GW
Income (1939)	30
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway
Occupation	Milk Chairman
Township / Ward	St Paul
Est. Birth Year	~1885

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 Martha	Age	Birth yr
Helen Clark	Daughter	—	18	~1922
Martha Clark	Head	—	55	~1885
Robert Clark	Son	—	21	~1919

Census Appearances

1920

Ramsey, Minnesota

Spouse, age 35

Ramsey, Minnesota · implied b. ~1885 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Norway
Year of Immigration	1885
Naturalization Status	Naturalized
Father's Birthplace	Norway
Mother's Birthplace	Norway
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Norwegian
Birth Country	Norway
Year of Naturalization	1901
Birthplace (normalized)	norway

1930

Ramsey, Minnesota

Other, age 45

Ramsey, Minnesota · implied b. ~1885 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Martha S.
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Norway
Naturalization Status	Naturalized
Year of Immigration	1884
Age at First Marriage	18
Father's Birthplace	Norway
Mother's Birthplace	Norway
Occupation	none
Can Read/Write	Yes
Mother Tongue	Norwegian
Birth Country	Norway
Birthplace (normalized)	norway

1940

Ramsey-County, Minnesota

Head, age 55

Ramsey-County, Minnesota · implied b. ~1885 — 3 household members

Surname	Clark
Given Name	Martha
Relationship to Head	Head
Sex	F
Color / Race	White
Age	55
Marital Status	Widowed
Birthplace	Norway
1935 Residence (City)	St. Paul
1935 Residence (County)	Ramsey
Naturalization Status	Naturalized
Occupation	milk chairman
Industry	WPA project school
Class of Worker	GW
Income (1939)	30
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway

Model Tree

Linked across censuses

Our Model Tree links Martha 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

Martha Clark

Head · 1940 · age 55 · b. ~1885 · Minnesota

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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 — Ramsey-County, Minnesota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02002-00227)

Line	Name	Age	Relation	Occupation	Birthplace
1	Elizabeth Drew	76	mother	—	Germany
2	Elizabeth Bodmann	50	sister	Operator	Minnesota
3	Catherine Bodmann	9	niece	—	California
4	Helen Owen	48	sister	—	Minnesota
5	Huller Owen	17	nephew	—	Minnesota
6	James Blazer	46	Head	Brakeman	Minnesota
7	Anne Blazer	55	wife	—	Minnesota
8	Mary Anne Carlson	8	niece	—	Minnesota
9	Josephine Lemke	58	Head	—	Poland
10	Thaddeus Lemke	30	son	Truck Driver	Minnesota
11	William F. Eckert	43	Head	Interior Decorator	Wisconsin
12	Latona L. Brown	30	niece	Teacher	Minnesota
13	Margaret Noggle	79	aunt	—	Ireland
14	George H. Harrison	40	Head	Interior Decorator	Wisconsin
15	Ida M. Harrison	67	mother	—	Missouri
16	Milton E. Ryan	68	Head	Book Binder	Nebraska
17	Mary Ryan	57	wife	—	Indiana
18	John Flynn	25	Head	Solicitor	Minnesota
19	Eileen Flynn	21	wife	—	Minnesota
20	Patrick Flynn	1	son	—	Minnesota
21	Mccatherine Flynn	67	mother	—	Iowa
22	William Hall	65	Head	Salesman	New Jersey
23	Mary Hall	64	wife	—	Iowa
24	James Ridler	74	Head	Store Manager	England
25	Katherine A. Ridler	74	wife	—	England
26	—	None	—	—	—
27	Martha Clark THIS PERSON	55	Head	Milk Chairman	Norway
28	Robert Clark	21	son	Cab Driver	Wisconsin
29	Helen Clark	18	daughter	Office Clerk	Minnesota
30	Catherine O. Roberts	51	Head	Teacher	Minnesota
31	Matthew Reddy	43	Head	Treasurer	D.C.
32	Louise Reddy	43	wife	—	New York
33	Matthew Jr. Reddy	12	son	—	Louisiana
34	Mary Alice Reddy	10	daughter	—	Buenos Aires
35	Robert Reddy	3	son	—	D.C.
36	Pearl E. G. Phillips	54	Head	Owner Proprietor	Canada English
37	Catherine Phillips	20	daughter	Proprietor	Minnesota
38	Thad Howard	20	House Boy	Servant	D.C.
39	Harry B. Stahler	49	Head	Electrician	Minnesota
40	Margaret A. Stahler	55	wife	—	Minnesota

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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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