MS
Mary Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Mary Sweeney across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 7-person household.
Age 55
b. ~1885
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Princeton Borough |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Princeton Borough |
| Est. Birth Year | ~1885 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Sweeney | Daughter | — | 26 | ~1914 |
| Luther Wright | Daughter | — | 20 | ~1920 |
| Mary Sweeney | Daughter | — | 31 | ~1909 |
| Michael Sweeney | Head | — | 62 | ~1878 |
| James Sweeney | Son | — | 29 | ~1911 |
| Francis Sweeney | Son | — | 21 | ~1919 |
| Mary Sweeney | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Mercer, New …
Spouse, age 36
Mercer, New Jersey · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1916 |
| Birthplace (normalized) | scotland |
1930
Mercer, New …
Spouse, age 46
Mercer, New Jersey · implied b. ~1884 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Age at First Marriage | 23 |
| Father's Birthplace | N. Ireland |
| Mother's Birthplace | N. Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Mercer-County, New …
Spouse, age 55
Mercer-County, New Jersey · implied b. ~1885 — 7 household members
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Princeton Borough |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Sweeney 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 Sweeney
Spouse · 1940 · age 55 · b. ~1885 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02357-00486)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rebecca Rumney | 35 | Wife | — | Russia |
| 2 | Michael Rumney | 6 | Son | — | England |
| 3 | Frederick Haberman | 31 | Head | Public Speaking Instructor | Pennsylvania |
| 4 | Helen Haberman | 30 | Wife | — | Pennsylvania |
| 5 | Frederick Williams | 28 | Head | — | New York |
| 6 | Alga Williams | 22 | Wife | Physical Ed Teacher | Latvia |
| 7 | Adele Fine | 67 | Head | — | New York |
| 8 | Kurt Gidili | 33 | Head | Scientific Writer | Czechoslovakia |
| 9 | Adele Gidili | 40 | Wife | — | Austria |
| 10 | Elizabeth Godley | 33 | Head | Teacher | Massachusetts |
| 11 | Evelyn Root | 36 | Head | Stenographer | Pennsylvania |
| 12 | George Manner | 70 | Head | Modeler | New York |
| 13 | Ella L. Manner | 67 | Wife | — | New York |
| 14 | Harold M. Manner | 39 | Son | Secretary | New Jersey |
| 15 | George F. Jr. Manner | 35 | Son | Dentist | New Jersey |
| 16 | Audrey T. Manner | 4 | Daughter | — | New Jersey |
| 17 | Joseph G. Skirm | 51 | Head | Sales Manager | New Jersey |
| 18 | Dorothy Skirm | 52 | Wife | — | New York |
| 19 | Barbara Skirm | 20 | Daughter | — | New Jersey |
| 20 | Theodosia Skirm | 14 | Daughter | — | New Jersey |
| 21 | Charles H. Justice | 24 | Head | Auto Mechanic | New Jersey |
| 22 | Louise Justice | 28 | Wife | — | Pennsylvania |
| 23 | Charles Justice | 3 | Son | — | Massachusetts |
| 24 | George Justice | 0 | Son | — | New Jersey |
| 25 | Edna F. Van Schmus | 52 | Head | Stenographer | Illinois |
| 26 | Donald Perrett | 32 | Head | Sales Service | New York |
| 27 | Ethel Perrett | 31 | Wife | — | Pennsylvania |
| 28 | Jewell B. Wright | 45 | Head | Clerk | New Jersey |
| 29 | Estella M. Wright | 44 | Wife | — | New Jersey |
| 30 | David Wright | 18 | Son | — | New Jersey |
| 31 | Jewell B. Jr. Wright | 14 | Son | — | New Jersey |
| 32 | George H. Wright | 11 | Son | — | New Jersey |
| 33 | Stanley E. Wright | 9 | Son | — | New Jersey |
| 34 | Michael Sweeney | 62 | Head | Mason | Eire |
| 35 | Mary Sweeney THIS PERSON | 55 | Wife | — | Scotland |
| 36 | Mary E. Sweeney | 31 | Daughter | Tutor | Scotland |
| 37 | James Sweeney | 29 | Son | — | Scotland |
| 38 | Helen Sweeney | 26 | Daughter | — | New Jersey |
| 39 | Francis Sweeney | 21 | Son | Mason Apprentice | New Jersey |
| 40 | Luther F. Wright | 20 | Daughter | Stenographer | 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)