MJ
Mary Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lackawanna-County, Pennsylvania
Our Model Tree links this Mary Johnson across the 1920, 1930 and 1940 US Censuses in Lackawanna-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 3-person household.
Age 63
b. ~1877
Female
Spouse
Born: Wales
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lackawanna-County, Pennsylvania |
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Blakely |
| 1935 Residence (County) | Wales |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housewife |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Occupation | Housewife |
| Township / Ward | Blakely |
| Est. Birth Year | ~1877 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Johnson | Daughter | — | 37 | ~1903 |
| James Johnson | Head | — | 65 | ~1875 |
| Mary Johnson | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Lackawanna, Pennsylvania
Spouse, age 42
Lackawanna, Pennsylvania · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1930
Lackawanna, Pennsylvania
Spouse, age 53
Lackawanna, Pennsylvania · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 22 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Lackawanna-County, Pennsylvania
Spouse, age 63
Lackawanna-County, Pennsylvania · implied b. ~1877 — 3 household members
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Blakely |
| 1935 Residence (County) | Wales |
| Naturalization Status | Naturalized |
| Occupation | Housewife |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 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
Mary Johnson
Spouse · 1940 · age 63 · b. ~1877 · Pennsylvania
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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 — Lackawanna-County, Pennsylvania
Open full size
1940 US Federal Census — Lackawanna-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03522-00392)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Betty Macknight | 17 | Daughter | — | Penna |
| 42 | Emma Macknight | 16 | Daughter | — | Illinois |
| 43 | Thomas Macknight | 15 | Son | — | Illinois |
| 44 | Mary Macknight | 10 | Daughter | — | Penna |
| 45 | Kathy Macknight | 7 | Daughter | — | Penna |
| 46 | Sidney Simmons | 43 | Head | Miner | England |
| 47 | Cecelia Simmons | 44 | Wife | Housewife | Penna |
| 48 | Marilyn Simmons | 4 | Daughter | — | Penna |
| 49 | Margaret Lewis | 74 | Mother | — | Wales |
| 50 | Florence Lewis | 34 | Sister | — | Penna |
| 51 | Charles Fisher | 67 | Head | Carpenter | Penna |
| 52 | Merritt Jackson | 31 | Son-in-law | Laborer | England |
| 53 | Mildred Jackson | 33 | Wife | Housewife | Penna |
| 54 | Billy Jackson | 5 | Son | — | Penna |
| 55 | Donny Jackson | 2 | Son | — | Penna |
| 56 | Dorothy Wilson | 31 | Daughter | Teacher | Penna |
| 57 | Teresa Mandelo | 67 | Head | Housewife | Penna |
| 58 | Mary Souchak | 24 | Maid | Maid | Penna |
| 59 | David Johnson | 34 | Head | Engineer | Penna |
| 60 | Mary D. Johnson | 32 | Wife | Housewife | Penna |
| 61 | James Johnson | 5 | Son | — | Penna |
| 62 | Milo Simons | 42 | Head | Chairman | Penna |
| 63 | Millie Simons | 23 | Daughter | Saleslady | Penna |
| 64 | Harold Simons | 16 | Son | — | Penna |
| 65 | Nathan Dodgson | 41 | Head | Laborer | Penna |
| 66 | H. Jean Dodgson | 31 | Wife | Housewife | Penna |
| 67 | Fred Theeling | 41 | Head | Laborer | Penna |
| 68 | Mary Theeling | 41 | Wife | Housewife | Penna |
| 69 | Laverne Theeling | 11 | Daughter | — | Penna |
| 70 | James Johnson | 65 | Head | Superintendent | England |
| 71 | Mary Johnson THIS PERSON | 63 | Wife | Housewife | Wales |
| 72 | Elizabeth Johnson | 37 | Daughter | Teacher | Penna |
| 73 | John Roland | 56 | Head | Unemployed | Penna |
| 74 | Jane Roland | 55 | Daughter | Housekeeper | Penna |
| 75 | Horace Roland | 15 | Son | — | Penna |
| 76 | Charlotte Lloyd | 53 | Head | Laborer | Penna |
| 77 | John Riche | 34 | Head | Laborer | Penna |
| 78 | Anna Riche | 32 | Wife | Dress Maker | Penna |
| 79 | John Riche | 4 | Son | — | Penna |
| 80 | — | None | — | — | — |
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)