MJ
Mary Jackson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cumberland-County, Maine
Our Model Tree links this Mary Jackson across the 1920, 1930 and 1940 US Censuses in Cumberland-County, Maine (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 6-person household.
Age 46
b. ~1894
Female
Spouse
Born: Maine
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cumberland-County, Maine |
| Surname | Jackson |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | South Portland City |
| 1935 Residence (County) | Cumberland |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | South Portland City |
| Est. Birth Year | ~1894 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Jackson | Daughter | — | 18 | ~1922 |
| Carlene Jackson | Daughter | — | 16 | ~1924 |
| William Jackson | Head | — | 44 | ~1896 |
| Charles Skillings | Other | — | 40 | ~1900 |
| Charles Jackson | Son | — | 12 | ~1928 |
| Mary Jackson | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Cumberland, Maine
Spouse, age 26
Cumberland, Maine · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Mary H |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Cumberland, Maine
Spouse, age 36
Cumberland, Maine · implied b. ~1894 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 21 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Tennessee |
| Occupation | salesman |
| Industry | milk dairy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Cumberland-County, Maine
Spouse, age 46
Cumberland-County, Maine · implied b. ~1894 — 6 household members
| Surname | Jackson |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | South Portland City |
| 1935 Residence (County) | Cumberland |
| 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 Jackson 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 Jackson
Spouse · 1940 · age 46 · b. ~1894 · 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
40 people indexed on this census page (nara:1940:m-t0627-01477-00510)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lester J. Hill | 58 | Head | Carpenter | Maine |
| 42 | Alavia|Alania Hill | 54 | Sister | — | Maine |
| 43 | Walter J. Tupper | 71 | Head | — | Maine |
| 44 | Etta E. Tupper | 57 | Wife | — | Maine |
| 45 | Merle W. Cook | 30 | Head | Coach Cleaner | Maine |
| 46 | Geneva R. Cook | 28 | Wife | — | Maine |
| 47 | Marilyn J. Cook | 3 | Daughter | — | Maine |
| 48 | Merle W. Jr. Cook | 0 | Son | — | Maine |
| 49 | Charles R. Dean | 63 | Head | Proprietor | Canada-English |
| 50 | Eva B. Dean | 50 | Wife | — | Canada-English |
| 51 | Bernice Dean | 26 | Daughter | Teacher | Maine |
| 52 | William H. Wright | 69 | Head | — | Maine |
| 53 | Muriel A. Wright | 33 | Daughter | — | Maine |
| 54 | Harold W. Morse | 58 | Head | Proprietor | Maine |
| 55 | Earle M. Haskell | 49 | Head | Bus Operator | Maine |
| 56 | Eleanor Haskell | 30 | Wife | — | Maine |
| 57 | Elizabeth M. Haskell | 7 | Daughter | — | Maine |
| 58 | William E. Haskell | 5 | Son | — | Maine |
| 59 | Russell S. Haskell | 1 | Son | — | Maine |
| 60 | Lillian M. Haskell | 71 | Mother | — | Maine |
| 61 | Vincent Shaw | 25 | Head | Delivery Salesman | Canada-English |
| 62 | Edythe Shaw | 21 | Wife | — | Maine |
| 63 | Richard C. Lewis | 49 | Head | Music Teacher | Pennsylvania |
| 64 | Hazel Lewis | 50 | Wife | — | Maine |
| 65 | Lucille Lewis | 20 | Daughter | Nursemaid | Maine |
| 66 | Carla Lewis | 18 | Daughter | Typist | Maine |
| 67 | William H. Jackson | 44 | Head | Deliveryman | Maine |
| 68 | Mary H. Jackson THIS PERSON | 46 | Wife | — | Maine |
| 69 | Elizabeth Jackson | 18 | Daughter | — | Maine |
| 70 | Carlene Jackson | 16 | Daughter | — | Maine |
| 71 | Charles Jackson | 12 | Son | — | Maine |
| 72 | Charles Skillings | 40 | Brother-in-law | Salesman | Maine |
| 73 | Raymond Tyne | 39 | Head | Salesman | Massachusetts |
| 74 | Vera Tyne | 39 | Wife | — | Massachusetts |
| 75 | Frederick G. Lyons | 41 | Head | Sheet Metal Worker | Massachusetts |
| 76 | Ruth E. Lyons | 39 | Wife | — | Maine |
| 77 | Frederick G. Jr. Lyons | 20 | Son | Clerk | Maine |
| 78 | Albertine Lyons | 18 | Daughter | New Worker | Maine |
| 79 | Betty Lou Lyons | 7 | Daughter | — | Maine |
| 80 | Cora B. Taylor | 70 | Mother-in-law | — | Maine |
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)