MK
Mary Keenan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this Mary Keenan across the 1920, 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 6-person household.
Age 62
b. ~1878
Female
Head
Born: New Jersey
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Keenan |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | South Amboy City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | South Amboy City |
| Est. Birth Year | ~1878 |
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 |
|---|---|---|---|---|
| Joseph Keenan | Son | — | 25 | ~1915 |
| Catherine Keenan | Daughter | — | 35 | ~1905 |
| William Keenan | Son | — | 16 | ~1924 |
| Elizabeth Keenan | Daughter | — | 32 | ~1908 |
| Frank Keenan | Son | — | 21 | ~1919 |
| Mary Keenan | Head | — | 62 | ~1878 |
Census Appearances
1920
Middlesex, New …
Spouse, age 41
Middlesex, New Jersey · implied b. ~1879 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keenan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Middlesex, New …
Spouse, age 51
Middlesex, New Jersey · implied b. ~1879 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keenan |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 22 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Head, age 62
Middlesex-County, New Jersey · implied b. ~1878 — 6 household members
| Surname | Keenan |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | South Amboy City |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Keenan 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 Keenan
Head · 1940 · age 62 · b. ~1878 · New Jersey
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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 — Middlesex-County, New Jersey
Open full size
1940 US Federal Census — Middlesex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02363-00375)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa Wozniak | 16 | Son | — | New Jersey |
| 42 | Frank Wozniak | 13 | Son | — | New Jersey |
| 43 | Margaret Wozniak | 12 | Daughter | — | New Jersey |
| 44 | Anna Wozniak | 11 | Daughter | — | New Jersey |
| 45 | Joseph Ponski | 27 | Head | Mechanic | New Jersey |
| 46 | Clara Ponski | 21 | Daughter | — | New Jersey |
| 47 | Virginia Ponski | 5 | Daughter | — | New Jersey |
| 48 | Rocco Palleroni | 49 | Head | Building Contractor | Italy |
| 49 | William Palleroni | 26 | Son | Operator | New Jersey |
| 50 | Peter Palleroni | 20 | Son | New Worker | New Jersey |
| 51 | Joseph Palleroni | 19 | Son | New Worker | New Jersey |
| 52 | Marie Palleroni | 16 | Daughter | — | New Jersey |
| 53 | Rose Ann Mcneal | 69 | Head | — | New Jersey |
| 54 | Johanna Mcneal | 45 | Daughter | School Teacher | New Jersey |
| 55 | Rose C. Mcneal | 36 | Daughter | Teacher | New Jersey |
| 56 | John J. Casey | 51 | Head | Park Custodian | New Jersey |
| 57 | Teresa Casey | 49 | Wife | — | New Jersey |
| 58 | Catherine Casey | 21 | Daughter | Operator | New Jersey |
| 59 | Charles Casey | 22 | Son | Operator | New Jersey |
| 60 | Alice Casey | 20 | Daughter | Operator | New Jersey |
| 61 | John Casey | 16 | Son | — | New Jersey |
| 62 | Joseph Casey | 13 | Son | — | New Jersey |
| 63 | Bridget Casey | 56 | Sister | — | Ireland |
| 64 | Michael Heeney | 84 | Uncle | — | Ireland |
| 65 | Mary E. Keenan THIS PERSON | 62 | Head | — | New Jersey |
| 66 | Catherine M. Keenan | 35 | Daughter | Stenographer | New Jersey |
| 67 | Elizabeth Keenan | 32 | Daughter | Telephone Clerk | New Jersey |
| 68 | Joseph Keenan | 25 | Son | Chemist | New Jersey |
| 69 | Frank Keenan | 21 | Son | Technician | New Jersey |
| 70 | William Keenan | 16 | Son | Student Mechanic | New Jersey |
| 71 | Casimir Mackiewicz | 57 | Head | Operator | Poland |
| 72 | Teresa Mackiewicz | 47 | Wife | — | Poland |
| 73 | Mary Mackiewicz | 25 | Daughter | Operator | New Jersey |
| 74 | Elsie Mackiewicz | 21 | Daughter | Operator | New Jersey |
| 75 | Thomas Mackiewicz | 15 | Son | — | New Jersey |
| 76 | Raymond Mackiewicz | 11 | Son | — | New Jersey |
| 77 | Rose Mackiewicz | 8 | Daughter | — | New Jersey |
| 78 | John Bogaczyk | 25 | Boarder | Mechanic | Pennsylvania |
| 79 | Alice Bogaczyk | 23 | Daughter | Operator | New Jersey |
| 80 | Louis Nelson | 45 | Head | Clerk | New Jersey |
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)