Mary Chambers — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Multnomah-County, Oregon

Our Model Tree links this Mary Chambers across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 3-person household.

Age 77 b. ~1863 Female Head Born: Massachusetts Widowed

1940 Census Record Details

Census Year	1940
Location	Multnomah-County, Oregon
Surname	Chambers
Given Name	Mary A.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	77
Marital Status	Widowed
Birthplace	Massachusetts
1935 Residence (City)	Portland (city)
1935 Residence (County)	Multnomah
Additional Details
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts
Township / Ward	Portland City
Est. Birth Year	~1863

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 Mary	Age	Birth yr
Anna Chambers	Daughter	—	50	~1890
Agnes Chambers	Daughter	—	48	~1892
Mary Chambers	Head	—	77	~1863

Census Appearances

1920

Multnomah, Oregon

Head, age 57

Multnomah, Oregon · implied b. ~1863 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chambers
Given Name	Mary A.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	57
Marital Status	Widowed
Birthplace	Massachusetts
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1930

Multnomah, Oregon

Head, age 67

Multnomah, Oregon · implied b. ~1863 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chambers
Given Name	Mary A.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	67
Marital Status	Widowed
Birthplace	Massachusetts
Age at First Marriage	22
Father's Birthplace	Irish Free State
Mother's Birthplace	Irish Free State
Occupation	none
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	4000
Radio Set	R
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1940

Multnomah-County, Oregon

Head, age 77

Multnomah-County, Oregon · implied b. ~1863 — 3 household members

Surname	Chambers
Given Name	Mary A.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	77
Marital Status	Widowed
Birthplace	Massachusetts
1935 Residence (City)	Portland (city)
1935 Residence (County)	Multnomah
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Chambers

Head · 1940 · age 77 · b. ~1863 · Oregon

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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 — Multnomah-County, Oregon Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03389-00933)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mary A. Chambers THIS PERSON	77	Head	—	Massachusetts
2	Anna J. Chambers	50	Daughter	Time-Keeper	Michigan
3	Agnes K. Chambers	48	Daughter	Floor-Lady	Michigan
4	August E. Groskey	48	Head	Grocery-Man	Canada English
5	Mable E. Groskey	35	Wife	—	Oregon
6	Glenda Groskey	16	Daughter	—	Oregon
7	Hettie E. Sachia	64	Head	—	Kentucky
8	Lewis Smith	57	Head	Laborer	Ohio
9	Nellie Smith	55	Wife	—	Norway
10	Lorna A. B. Smith	30	Daughter	School Teacher	Dakota
11	Louise Lloyd	53	Head	—	Washington
12	Albert Lloyd	27	Son	Checker	Washington
13	Karl Radmacher	24	Head	Service Man	Oregon
14	Dorothya Radmacher	21	Wife	—	Oregon
15	Jane Radmacher	0	Daughter	—	Oregon
16	Benjamin O. Hadley	25	Head	Truck Driver	Illinois
17	June E. Hadley	22	Wife	—	Washington
18	Benjamin Junior Hadley	0	Son	—	Washington
19	Elmer Stambaugh	20	Lodger	Truck Driver	Oregon
20	Lillian E. Sutton	65	Head	Practical Nurse	Illinois
21	Roy Sutton	33	Son	Chauffer	Illinois
22	Raymond Sutton	25	Son	Salesman	Illinois
23	Roscoe A. Babcock	46	Head	Electric Welder	Wyoming
24	Selma Babcock	35	Wife	Inspector	Idaho
25	Leslie Mcintosh	33	Head	Agent	Oregon
26	Ethel E. Mcintosh	30	Wife	Sales Clerk	Washington
27	Diana Mcintosh	4	Daughter	—	Oregon
28	Ida Shoemaker	50	Mother-in-law	—	Missouri
29	James Barnard	31	Head	Salesman	Idaho
30	Ethel Barnard	31	Wife	Elevator Operator	Oregon
31	Clara Barnard	13	Daughter	—	Oregon
32	Shirley Barnard	9	Daughter	—	Oregon
33	Richard Schultz	52	Head	Salesman	Russia
34	Francis E. Schultz	40	Wife	—	Oregon
35	Russell Schultz	25	Son	Proffession Golf	Oregon
36	Marjorie A. B. Schultz	20	Daughter	—	Oregon
37	Richard Junior Schultz	17	Son	Golf Helper	Oregon
38	William Schultz	12	Son	—	Oregon
39	Harry Newell	48	Head	Florist	Oregon
40	Rose Newell	47	Wife	—	Washington

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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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