Bertha Johnson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cumberland-County, Maine

Our Model Tree links this Bertha Johnson across the 1920, 1930 and 1940 US Censuses in Cumberland-County, Maine (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 4-person household.

Age 44 b. ~1896 Female Spouse Born: Maine Married

1940 Census Record Details

Census Year	1940
Location	Cumberland-County, Maine
Surname	Johnson
Given Name	Bertha L.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Maine
1935 Residence (City)	Harpswell
1935 Residence (County)	Cumberland
Additional Details
Highest Grade	No 8
1935 Residence	Same place
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine
Township / Ward	Harpswell
Est. Birth Year	~1896

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.

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

Name	Relation to head	Relative to Bertha	Age	Birth yr
Geraldine Johnson	Daughter	—	21	~1919
Augustus Johnson	Head	—	43	~1897
Augustus Johnson	Son	—	17	~1923
Bertha Johnson	Spouse	—	44	~1896

Census Appearances

1920

Cumberland, Maine

Spouse, age 24

Cumberland, Maine · implied b. ~1896 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Bertha L
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	24
Marital Status	Married
Birthplace	Maine
Father's Birthplace	Maine
Mother's Birthplace	Maine
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

1930

Cumberland, Maine

Spouse, age 34

Cumberland, Maine · implied b. ~1896 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Bertha L.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Maine
Age at First Marriage	22
Father's Birthplace	Maine
Mother's Birthplace	Maine
Can Read/Write	Yes
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

1940

Cumberland-County, Maine

Spouse, age 44

Cumberland-County, Maine · implied b. ~1896 — 4 household members

Surname	Johnson
Given Name	Bertha L.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Maine
1935 Residence (City)	Harpswell
1935 Residence (County)	Cumberland
Highest Grade	No 8
1935 Residence	Same place
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

Model Tree

Linked across censuses

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

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This person

Anchor record

Bertha Johnson

Spouse · 1940 · age 44 · b. ~1896 · Maine

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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 — Cumberland-County, Maine Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-01474-00893)

Line	Name	Age	Relation	Occupation	Birthplace
41	Jessie E. Leeman	22	Daughter	Cook	Maine
42	Arthur E. York	45	Head	Lobster Fisherman	Maine
43	Gladys York	45	Wife	—	Maine
44	Emily G. York	18	Daughter	—	Maine
46	Herbert L. Johnson	81	Head	Boat Builder	Maine
47	Alonzo Doughty	46	Head	Lobster Fisherman	Maine
48	Daughter Doughty	None	F	—	—
49	Chester D. Sinnett	72	Head	Lobster Fisherman	Maine
50	Jennie J. Sinnett	74	Wife	—	Maine
51	Scott L. Freeman	63	Head	Lobster Fisherman	Maine
52	Augustus P. Johnson	43	Head	Caretaker	Maine
53	Bertha L. Johnson THIS PERSON	44	Wife	—	Maine
54	Geraldine L. Johnson	21	Daughter	House Maid	Maine
55	Augustus P. Jr. Johnson	17	Son	New Worker	Maine
56	Claud P. Johnson	61	Head	Lobster Fisherman	Maine
57	Maggie E. Johnson	58	Wife	—	Maine
58	Raymond P. Johnson	20	Son	Fisherman	Maine
59	Charles R. Lord	15	Grandson	—	Maine
60	Earley B. Sinnett	46	Head	Proprietor	Maine
61	Ruth D. Sinnett	30	Wife	—	Maine
62	Jean B. Sinnett	11	Daughter	—	Maine
63	Humphrey S. Sinnett	76	Head	Proprietor	Maine
64	Mary B. Sinnett	71	Wife	—	England
65	Harvey B. Sinnett	46	Son	Clerk	Maine
66	John O. Murray	44	Head	—	Maine
67	John L. Murray	21	Head	Fuel Distributor	Maine
68	Julie M. Murray	21	Wife	—	Maine
69	Sally Lee Murray	1	Daughter	—	Maine
70	Clayton W. Johnson	32	Head	Lobster & Deep Sea Fisherman	Maine
71	Harriet W. Johnson	30	Wife	Cook	Maine
72	Bernard W. Johnson	12	Son	—	Maine
73	Alfred S. Johnson	10	Son	—	Maine
74	Corinne A. Johnson	5	Daughter	—	Maine
75	Edwin P. Black	35	Head	Lobster Dealer	Maine
76	Emma L. Black	29	Wife	—	Maine
77	William Thomas Black	58	Head	Captain	Maine
78	Lura E. Black	56	Wife	—	Maine
79	Wylena Black	30	Daughter	Teacher	Maine
80	Laura P. Mcmakin	33	Daughter	—	Maine

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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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