MS
Mary Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cumberland-County, Maine
Our Model Tree links this Mary Sullivan across the 1920, 1930 and 1940 US Censuses in Cumberland-County, Maine (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Female
Head
Born: Maine
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Cumberland-County, Maine |
| Surname | Sullivan |
| Given Name | Mary C |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Maine |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Cumberland |
| Additional Details | |
| Occupation | No |
| Industry | No |
| Class of Worker | No |
| Hours Worked | 5 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | Portland City |
| Est. Birth Year | ~1882 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Sullivan | Daughter | — | 20 | ~1920 |
| Thelma Sullivan | Daughter | — | 33 | ~1907 |
| Mary Sullivan | Head | — | 58 | ~1882 |
| Charles Sullivan | Son | — | 29 | ~1911 |
Census Appearances
1920
Cumberland, Maine
Spouse, age 39
Cumberland, Maine · implied b. ~1881 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
Spouse, age 49
Cumberland, Maine · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 16 |
| Father's Birthplace | England |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Cumberland-County, Maine
Head, age 58
Cumberland-County, Maine · implied b. ~1882 — 4 household members
| Surname | Sullivan |
| Given Name | Mary C |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Maine |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Cumberland |
| Occupation | No |
| Industry | No |
| Class of Worker | No |
| Hours Worked | 5 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Sullivan 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 Sullivan
Head · 1940 · age 58 · b. ~1882 · 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
1940 US Federal Census — Cumberland-County, Maine
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01475-00863)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice L Stearns | 33 | wife | No | Massachusetts |
| 42 | Beverly A Stearns | 9 | daughter | — | Maine |
| 43 | Fay D Stearns | 2 | daughter | — | Maine |
| 44 | Mary E Kenney | 62 | head | No | Canada Eng |
| 45 | Helen E Kenney | 31 | daughter | Drug Clerk | Maine |
| 46 | Mary C Sullivan THIS PERSON | 58 | head | No | Maine |
| 47 | Thelma Beatrice E Sullivan | 33 | daughter | Dial Operator | Maine |
| 48 | Charles A Sullivan | 29 | son | Stock Clerk | Maine |
| 49 | Mary F Sullivan | 20 | daughter | New Worker | Maine |
| 50 | Frederick C Penney | 46 | head | Foreman | England |
| 51 | Margaret I Penney | 40 | wife | No | Maine |
| 52 | Margaret R Penney | 18 | daughter | Seamstress | Maine |
| 53 | Robert E Penney | 17 | son | No | Maine |
| 54 | Rosina M Penney | 64 | mother | No | England |
| 55 | Robert A Woodill | 33 | head | Clerk | Maine |
| 56 | Ida E Woodill | 31 | wife | No | Maine |
| 57 | Erland J Libby | 43 | head | Office Clerk | Maine |
| 58 | Hazel M Libby | 40 | wife | No | Maine |
| 59 | Robert Woodill | 76 | father | Upholsterer | Canada Eng |
| 61 | Arthur W Furlong | 73 | head | Commercial Agent | Massachusetts |
| 62 | Frances W Furlong | 75 | wife | No | Massachusetts |
| 63 | Charles T Vose | 73 | head | No | Canada Eng |
| 64 | Charlotte B Vose | 74 | wife | No | Canada Eng |
| 65 | Louis M Wright | 33 | head | Radio Technician | New Hampshire |
| 66 | Elizabeth G Wright | 31 | wife | Librarian | Connecticut |
| 67 | William F Shanahan | 57 | head | Conductor | Massachusetts |
| 68 | Alice M Shanahan | 57 | wife | No | Maine |
| 69 | Katherine E Leo | 50 | head | Operator | Maine |
| 70 | Vincent Leo | 26 | son | Salesman | Maine |
| 72 | Willis B Coombs | 51 | head | Carpenter | Maine |
| 73 | Edith S Coombs | 52 | wife | Agent | Maine |
| 74 | John P Campbell | 37 | head | Baker | Georgia |
| 75 | Ruth G Campbell | 28 | wife | No | Georgia |
| 76 | George M Bowles | 25 | head | Claim Agent | Maine |
| 77 | Kathryn C Bowles | 27 | wife | Clerk | MAINE |
| 78 | David T Woodbury | 65 | head | Janitor | MAINE |
| 79 | Nicholas M Supple | 63 | head | Baggage Handler | Canada Eng |
| 80 | Anne F Supple | 59 | wife | No | Canada Eng |
Related Census Records
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)