Margaret Mcdermott — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Deer-Lodge-County, Montana

Our Model Tree links this Margaret Mcdermott across the 1920, 1930 and 1940 US Censuses in Deer-Lodge-County, Montana (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 5-person household.

Age 52 b. ~1888 Female Spouse Born: Scotland Married

1940 Census Record Details

Census Year	1940
Location	Deer-Lodge-County, Montana
Surname	McDermott
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	52
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Anaconda
1935 Residence (County)	Deer Lodge
Naturalization Status	Naturalized
Additional Details
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Scotland
Birthplace (normalized)	scotland
Township / Ward	Anaconda
Est. Birth Year	~1888

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.

5 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Margaret	Age	Birth yr
Noel Mcdermott	Son	—	22	~1918
Michael Mcdermott	Head	—	52	~1888
Margaret Mcdermott	Spouse	—	52	~1888
Leo Mcdermott	Son	—	21	~1919
Gladys Mcdermott	Other	—	25	~1915

Census Appearances

1920

Deer Lodge, …

Spouse, age 32

Deer Lodge, Montana · implied b. ~1888 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McDermott
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Scotland
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Scotch
Birth Country	Scotland
Birthplace (normalized)	scotland

1930

Deer Lodge, …

Other, age 42

Deer Lodge, Montana · implied b. ~1888 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McDermott
Given Name	Margaret H.
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Scotland
Naturalization Status	Naturalized
Year of Immigration	1891
Age at First Marriage	16
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Occupation	none
Can Read/Write	Yes
Mother Tongue	Scotland
Birth Country	Scotland
Birthplace (normalized)	scotland

1940

Deer-Lodge-County, Montana

Spouse, age 52

Deer-Lodge-County, Montana · implied b. ~1888 — 5 household members

Surname	McDermott
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	52
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Anaconda
1935 Residence (County)	Deer Lodge
Naturalization Status	Naturalized
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Scotland
Birthplace (normalized)	scotland

Model Tree

Linked across censuses

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

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This person

Anchor record

Margaret Mcdermott

Spouse · 1940 · age 52 · b. ~1888 · Montana

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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 — Deer-Lodge-County, Montana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02217-00544)

Line	Name	Age	Relation	Occupation	Birthplace
41	Jane Kroger	50	Sister-in-law	—	England
42	Hannah E. Chrystal	74	Head	—	Canada
43	Michael H. Mcdermott	52	Head	Electrician	Wisconsin
44	Margaret Mcdermott THIS PERSON	52	Wife	—	Scotland
45	Noel (H.) Mcdermott	22	Son	—	Montana
46	Leo Mcdermott	21	Son	Fireman	Montana
47	Gladys Mcdermott	25	Daughter-in-law	—	Montana
48	Anna D. Dorchester	71	Head	—	Iowa
49	Sarah B. Malley	60	Head	—	Pennsylvania
50	Lottie M. Ulrich	52	Head	—	Montana
51	Carl B. Ashlock	64	Head	Machinist	Kansas
52	Elizabeth Ashlock	56	Wife	—	England
53	Stanley Martens	23	Head	Fireman	Washington
54	Johanna R. Martens	25	Wife	—	Montana
55	Jake Kenne	65	Head	City Clerk	Ohio
56	Myrtle Kenne	54	Wife	—	Montana
57	William Brown	55	Head	Clerk	Iowa
58	Dorothy Brown	55	Wife	—	Minnesota
59	Arthur Brown	22	Son	Laborer	Iowa
60	William Jr. Brown	16	Son	—	Iowa
61	Clara Brown	14	Daughter	—	Iowa
62	Pauline Brown	13	Daughter	—	Iowa
63	Evelyn Brown	10	Daughter	—	Montana
64	Margaret B. Leahy	60	Head	—	Irish Free State
65	Thomas Michael Leahy	50	Brother	Laborer	Irish Free State
66	Wallace K. Smith	46	Head	Superintendent	New York
67	Anna M. Smith	48	Wife	—	Montana
68	Elizabeth Smith	18	Daughter	—	Montana
69	Ann Sullivan	75	Head	—	Irish Free State
70	George Sullivan	39	Son	Fireman	Montana
71	David W. Walker	58	Head	Laborer	Montana
72	Laura Walker	55	Wife	—	Illinois
73	David Jr. Walker	14	Son	—	Ohio
74	Dr. Ray O. Brandt	49	Head	Dentist	Iowa
75	Eva T. Brandt	47	Wife	—	Montana
76	Ruth Brandt	16	Daughter	—	Montana
77	Jacob J. Schwartz	65	Head	Merchant	Germany
78	Sarah B. Schwartz	62	Wife	Bookkeeper	Germany
79	Pauline Goodman	27	Daughter	—	Montana
80	John Ahern	84	Head	—	New York

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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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