Mary Simons — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Los Angeles, California

Our Model Tree links this Mary Simons across the 1930 and 1940 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 9-person household.

Age 39 b. ~1891 Female Spouse Born: Utah Married

1930 Census Record Details

Census Year	1930
Location	Los Angeles, California
Surname	Simons
Given Name	Mary R.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Utah
Age at First Marriage	20
Father's Birthplace	Utah
Mother's Birthplace	Utah
Additional Details
Can Read/Write	Yes
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah
Township / Ward	Long Beach City
Est. Birth Year	~1891

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.

9 people recorded at the same address in the 1930 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
George Simons	Son	—	17	~1913
Marjorie Simons	Daughter	—	15	~1915
Martha Langenbacher	Other	—	44	~1886
Mary Simons	Daughter	—	18	~1912
Mary Simons	Spouse	—	39	~1891
Isabel Simons	Daughter	—	13	~1917
George Simons	Head	—	41	~1889
Elaine Simons	Daughter	—	9	~1921
Louise Simons	Daughter	—	13	~1917

Census Appearances

1930

Los Angeles, …

Spouse, age 39

Los Angeles, California · implied b. ~1891 — 9 household members

Surname	Simons
Given Name	Mary R.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Utah
Age at First Marriage	20
Father's Birthplace	Utah
Mother's Birthplace	Utah
Can Read/Write	Yes
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

1940

Los-Angeles-County, California

Other, age 50

Los-Angeles-County, California · implied b. ~1890 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Simmons
Given Name	Mary C.
Relationship to Head	Mother
Sex	F
Color / Race	White
Age	50
Marital Status	Divorced
Birthplace	Utah
1935 Residence (City)	Los Angeles City
1935 Residence (County)	Los Angeles
Occupation	Forelady
Industry	Draperies
Class of Worker	PW
Hours Worked	44
Income (1939)	1040
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Utah
Birth Country	United States
Birthplace (normalized)	utah

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Simons

Spouse · 1930 · age 39 · b. ~1891 · California

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1930 US Federal Census — Los Angeles, California Open full size

Page Contents

50 people indexed on this census page (ia:1930:californiacensus00reel129:0615)

Line	Name	Age	Relation	Occupation	Birthplace
1	Pearl Draton	57	Wife	—	Tennessee
2	Lawrence Schomaker	55	Head	—	Pennsylvania
3	George H. Schomaker	21	Son	Concessions	Pennsylvania
4	Ross E. Walker	32	Head	Proprietor	Nebraska
5	Elsie Walker	31	Wife	—	Wisconsin
6	Edwin Walker	6	Son	—	California
7	Elsie Walker	5	Daughter	—	California
8	Charles Doolie	53	Head	Contractor	Nebraska
9	William Doolie	45	Wife	—	Nebraska
10	Norma Doolie	23	Daughter	—	Nebraska
11	Hubert Doolie	21	Son	Laborer	Nebraska
12	Eloise Doolie	15	Daughter	—	California
13	Clarence E. Denning	54	Head	Laborer	Indiana
14	Marie Denning	31	Wife	—	Pennsylvania
15	Evelyn Denning	10	Daughter	—	North Dakota
16	Claude D. Robertson	50	Head	—	Iowa
17	Edna H. Robertson	54	Wife	—	Iowa
18	Katherine Price	79	Mother-in-law	—	South Dakota
19	Alice Wright	74	Mother-in-law	—	Pennsylvania
20	Sarah E. Stockert	63	Head	—	Michigan
21	Edgar R. Armstrong	59	Head	Buyer	Missouri
22	Ida Armstrong	58	Wife	Stenographer	Pennsylvania
23	Katherine Allen	51	Head	Nurse	Minnesota
24	Edwin H. B. Avery	47	Head	Purchasing Agent	Montana
25	Grace M. Avery	43	Wife	—	Wisconsin
26	Robert Avery	12	Son	—	Arizona
27	Eleanor Avery	10	Daughter	—	California
28	John R. Snively	64	Head	Operator	Illinois
29	Esther L. Snively	60	Wife	—	Indiana
30	Harry Snively	24	Son	—	Indiana
31	Harold Coombs	32	Head	Mechanic	Iowa
32	Helen Coombs	32	Wife	—	Iowa
33	Alfred Coombs	32	Lodger	Laborer	New York
34	Clyde Coombs	7	Lodger	—	Nebraska
35	George W. Simons	41	Head	Salesman	Utah
36	Mary R. Simons THIS PERSON	39	Wife	—	Utah
37	Mary R. Simons	18	Daughter	Nurse	Utah
38	George L. Simons	17	Son	—	Utah
39	Marjorie L. Simons	15	Daughter	—	Utah
40	Louise V. Simons	13	Daughter	—	Utah
41	Isabel J. Simons	13	Daughter	—	Utah
42	Elaine E. Simons	9	Daughter	—	Utah
43	Martha Langenbacher	44	Sister-in-law	Bookkeeper	Utah
44	Leonia Beagles	74	Head	—	Missouri
45	Max Beagles	50	Son	Carpenter	Missouri
46	Beulah Beagles	53	Daughter	—	Missouri
47	Emma Davis	58	Sister-in-law	Carpenter	Missouri
48	Frank Sutphin	23	Head	Cook	Nebraska
49	Frances Sutphin	22	Lodger	Pumper	North Dakota
50	William Ward	72	Head	—	Ireland

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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