Margaret Mcmahon — 1920 US Census Record

Linked across censuses

1920 United States Federal Census · Lake, Illinois

Our Model Tree links this Margaret Mcmahon across the 1910 and 1920 US Censuses in Lake, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1872), then head of a 9-person household.

Age 48 b. ~1872 Female Spouse Born: Indiana Married

1920 Census Record Details

Census Year	1920
Location	Lake, Illinois
Surname	McMahon
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Massachusetts
Mother's Birthplace	Ireland
Additional Details
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Township / Ward	City Of Waukegan
Est. Birth Year	~1872

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 1920 census.

Name	Relation to head	Relative to Margaret	Age	Birth yr
Jack Mcmahon	Son	—	18	~1902
Rose Mcmahon	Daughter	—	22	~1898
Margaret Mcmahon	Spouse	—	48	~1872
John Mcmahon	Head	—	58	~1862
Helen Mcmahon	Daughter	—	24	~1896
Florence Mcmahon	Daughter	—	12	~1908
Loretta Mcmahon	Daughter	—	26	~1894
Ruth Mcmahon	Daughter	—	10	~1910
Virginia Mcmahon	Daughter	—	15	~1905

Census Appearances

1910

Lake, Illinois

Spouse, age 38

Lake, Illinois · implied b. ~1872 — 10 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McMahon
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Indiana
Years Married	19
Children Born	9
Children Living	9
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	English
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1920

Lake, Illinois

Spouse, age 48

Lake, Illinois · implied b. ~1872 — 9 household members

Surname	McMahon
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Massachusetts
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

Our Model Tree links Margaret Mcmahon across 2 US Census years (1910 and 1920) in Lake, Illinois, using XGBoost record linkage.

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This person

Anchor record

Margaret Mcmahon

Spouse · 1920 · age 48 · b. ~1872 · Illinois

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

Original Census Page

1920 US Federal Census — Lake, Illinois Open full size

Page Contents

50 people indexed on this census page (ia:1920:14thcensusofpopu382unit:0274)

Line	Name	Age	Relation	Occupation	Birthplace
1	Melvin P. Curtis	68	Head	Bricklayer	New York
2	Flora H. Curtis	63	Wife	—	New York
3	Preston H. Curtis	24	Son	Bookkeeper	Illinois
4	Gertrude A. Curtis	21	Daughter-in-law	—	Ohio
5	John Mcmahon	58	Head	Foreman	Ohio
6	Margaret Mcmahon THIS PERSON	48	Wife	—	Indiana
7	Loretta Mcmahon	26	Daughter	—	Illinois
8	Helen Mcmahon	24	Daughter	Bill Clerk	Illinois
9	Rose Mcmahon	22	Daughter	Nurse	Illinois
10	Jack Mcmahon	18	Son	Driver	Illinois
11	Virginia Mcmahon	15	Daughter	—	Illinois
12	Florence Mcmahon	12	Daughter	—	Illinois
13	Ruth Mcmahon	10	Daughter	—	Illinois
14	Charles H. Mitchell	74	Head	Retired	Vermont
15	Alice E. Mitchell	73	Wife	—	Illinois
16	May G. Mitchell	30	Daughter	Teacher	Wisconsin
17	Floyd Morrison	35	Head	Advertising	Ohio
18	Mabel Morrison	28	Wife	—	Washington
19	Herbert H. Burnett	50	Head	Letter Carrier	Illinois
20	Ella Burnett	41	Wife	—	Wisconsin
21	Mary Burnett	19	Daughter	—	Illinois
22	Earl Dews	37	Brother-in-law	Engineer	Missouri
23	Charles Tornquist	45	Head	Salesman	Indiana
24	Mary Tornquist	46	Wife	—	Illinois
25	Clarence Tornquist	21	Son	Machinist	Illinois
26	Edward Tornquist	18	Son	Clerical Work	Illinois
27	Hazel Tornquist	13	Daughter	—	Michigan
28	Beulah Tornquist	5	Daughter	—	Illinois
29	Phoebe Tornquist	19	Daughter-in-law	—	Rhode Island
30	June Ellen Tornquist	0	Granddaughter	—	Illinois
31	Mary Falkling	85	Mother-in-law	—	New York
32	Catherine Sweeney	62	Head	Keeper	Illinois
33	Margaret Sweeney	60	Sister	Keeper	Illinois
34	Elizabeth Dromby	50	Head	—	Illinois
35	Lucy Schwick	38	Lodger	Stenographer	Illinois
36	Robert Bellinger	51	Head	Merchant	Illinois
37	Agnes R. Bellinger	48	Wife	—	Illinois
38	Edwin J. Bellinger	21	Son	Student	Illinois
39	Lawrence Bellinger	12	Son	—	Illinois
40	Leslie J. Felkos	24	Head	Druggist	Wisconsin
41	Frances Felkos	21	Wife	—	Wisconsin
42	Mary Anderson	42	Head	—	Ireland
43	Elizabeth Anderson	19	Daughter	Clerk	Illinois
44	Adolphine Anderson	17	Daughter	Stenographer	Illinois
45	Anna Anderson	14	Daughter	—	Illinois
46	William Anderson	10	Son	—	Illinois
47	Darell Markley	24	Head	Field Director	Kansas
48	Marie Markley	21	Wife	—	Michigan
49	John D. Schad	40	Head	Merchant	Illinois
50	Minnie N. Schad	35	Wife	—	Illinois

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1920 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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