Mary Cobb — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cumberland-County, Maine

Our Model Tree links this Mary Cobb across the 1920, 1930 and 1940 US Censuses in Cumberland-County, Maine (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 2-person household.

Age 68 b. ~1872 Female Head Born: Maine Widowed

1940 Census Record Details

Census Year	1940
Location	Cumberland-County, Maine
Surname	Cobb
Given Name	Mary L.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	68
Marital Status	Widowed
Birthplace	Maine
1935 Residence (City)	Gorham (Village)
1935 Residence (County)	Cumberland
Additional Details
Income (1939)	0
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine
Township / Ward	Gorham Village
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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Cobb	Head	—	68	~1872
Mary Cobb	Daughter	—	39	~1901

Census Appearances

1920

Cumberland, Maine

Spouse, age 47

Cumberland, Maine · implied b. ~1873 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cobb
Given Name	Mary E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
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

Other, age 57

Cumberland, Maine · implied b. ~1873 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cobb
Given Name	Mary
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Maine
Age at First Marriage	24
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

Head, age 68

Cumberland-County, Maine · implied b. ~1872 — 2 household members

Surname	Cobb
Given Name	Mary L.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	68
Marital Status	Widowed
Birthplace	Maine
1935 Residence (City)	Gorham (Village)
1935 Residence (County)	Cumberland
Income (1939)	0
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Maine
Birth Country	United States
Birthplace (normalized)	maine

Model Tree

Linked across censuses

Our Model Tree links Mary Cobb 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 Cobb

Head · 1940 · age 68 · b. ~1872 · 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

40 people indexed on this census page (nara:1940:m-t0627-01474-00760)

Line	Name	Age	Relation	Occupation	Birthplace
1	Sara E. Giddings	86	Head	—	Maine
2	Victoria Magnussen	45	Companion	—	Maine
3	Mary E. Carey	57	Head	—	Maine
4	William L. Carey	23	son	—	Maine
5	Mary E. Carey	37	daughter	Stenographer	Maine
6	James B. Ridgeway	63	Head	Carpenter	Maine
7	Edith J. Ridgeway	57	wife	Librarian	Maine
8	Theodore H. Lunt	36	Head	Fireman & Janitor	Colorado
9	Hazel J. Lunt	29	wife	—	Maine
10	Frances P. Lunt	6	daughter	—	Maine
11	Dorothy V. Lunt	4	daughter	—	Maine
12	Elizabeth F. Lunt	2	daughter	—	Maine
13	Mary L. Cobb THIS PERSON	68	Head	—	Maine
14	Mary L. Cobb	39	daughter	Asst. To Postmaster	Maine
15	Roy F. Anderson	75	Head	—	Maine
16	Maude E. Meserve	34	Niece	—	Maine
17	Roy K. Dean	36	Head	Proprietor	Maine
18	Hellen E. Dean	36	wife	—	Maine
19	Cecil S. Dean	14	son	—	Maine
20	Richard L. Dean	10	son	—	Maine
21	Stanley H. Rowe	34	Head	Osteopathic Doctor	Maine
22	Elizabeth A. Rowe	33	wife	—	Mass.
23	Margaret A. Rowe	7	daughter	—	Mass.
24	Paula A. Rowe	4	daughter	—	Conn.
25	Thomas E. Oates	52	Head	Engineer	Maine
26	Eva M. Oates	49	Wife	—	Canada-Eng
27	Donald F. Oates	15	son	—	Maine
28	Richard J. Oates	13	son	—	Maine
29	Thomas E. Sawyer	66	Head	Blacksmith	Maine
30	Eva M. Sawyer	63	wife	—	Maine
31	Ernest R. Brown	69	Cousin	—	Maine
32	James L. Moody	32	Head	Salesman	Maine
33	Evelyn H. Moody	32	wife	—	Maine
34	James L. Jr. Moody	8	son	—	Maine
35	Winship B. Moody	7	son	—	Maine
36	Beverly A. Moody	1	daughter	—	Maine
37	Hattie S. Higgins	67	Head	—	Maine
38	James H. Mitchell	55	Head	Laborer	Maine
39	Herman L. Mitchell	35	son	Book Keeper	Maine
40	Guy D. Mitchell	18	son	New Worker	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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