MS
Margaret Sweeney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Margaret Sweeney across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a daughter (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Attendant |
| Industry | Deaf School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Attendant |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1900 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sweeney | Daughter | — | 40 | ~1900 |
| Mary Sweeney | Head | — | 71 | ~1869 |
| Edward Sweeney | Son | — | 42 | ~1898 |
Census Appearances
1920
Mercer, New …
Daughter, age 20
Mercer, New Jersey · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Operator |
| Industry | Watch Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Daughter, age 30
Mercer, New Jersey · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Proper. |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Daughter, age 40
Mercer-County, New Jersey · implied b. ~1900 — 3 household members
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Attendant |
| Industry | Deaf School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| 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 Margaret Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Sweeney (~0.92 confidence) and father Edward Sweeney (~0.92 confidence) and mother Mary Sweeney (~0.92 confidence) and mother Mary Sweeney (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Sweeney
b. ~1862
Source father
● Household
· direct · ~0.92
Father
Edward Sweeney
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Mary Sweeney
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mary Sweeney
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Sweeney
Daughter · 1940 · age 40 · b. ~1900 · New Jersey
★ You are viewing this record
Sibling
Edward Sweeney
Sibling · 1940 · age 42
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-02435-00933)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary G. Sweeney | 71 | Head | — | New Jersey |
| 2 | Edward Sweeney | 42 | Son | — | New Jersey |
| 3 | Margaret Sweeney THIS PERSON | 40 | Daughter | Attendant | New Jersey |
| 4 | M. Ada Speer | 70 | Head | — | New Jersey |
| 5 | Elizabeth Staff | 67 | Lodger | — | Germany |
| 6 | Hannah M. La Peter | 80 | Lodger | Dress Maker | New Jersey |
| 7 | Fanny B. Moran | 67 | Head | — | New Jersey |
| 8 | Anna Moran | 65 | Sister | Shop Inspector | New Jersey |
| 9 | Anna D. Wheeler | 59 | Head | — | New Jersey |
| 10 | Michael G. Wheeler | 36 | Son | Stock Operator | New Jersey |
| 11 | Panti Gentile | 44 | Head | Wire Drawer | Italy |
| 12 | Clara Gentile | 35 | Wife | — | Italy |
| 13 | Phresa Gentile | 13 | Daughter | — | New Jersey |
| 14 | Bruno Gentile | 11 | Son | — | New Jersey |
| 15 | Doloris Gentile | 5 | Daughter | — | New Jersey |
| 16 | Thomas S. Sr. Rogers | 66 | Head | Metal Contractor | Pennsylvania |
| 17 | Muriel M. Rogers | 65 | Wife | — | New Jersey |
| 18 | Hyman Spivack | 25 | Head | Office Clerk | New York |
| 19 | Ruth Spivack | 21 | Wife | — | Russia |
| 20 | Norma Spivack | 1 | Daughter | — | New Jersey |
| 21 | Frank Graziano | 31 | Head | Salesman | New Jersey |
| 22 | Louise Graziano | 28 | Wife | — | New Jersey |
| 23 | Anthony Graziano | 4 | Son | — | New Jersey |
| 24 | Jermiah Behrens | 75 | Head | — | Irish Free State |
| 25 | Anna Behrens | 72 | Wife | — | Irish Free State |
| 26 | Eugene Morrow | 29 | Head | Waiter | Indiana |
| 27 | Elsie Morrow | 35 | Wife | — | New Jersey |
| 28 | Jean Anne Morrow | 2 | Daughter | — | New Jersey |
| 29 | Clara B. Jones | 70 | Head | — | New Jersey |
| 30 | Lucy Pilders | 54 | Head | — | New Jersey |
| 31 | Anthony Pilders | 34 | Son | Shoe Maker | New Jersey |
| 32 | Catherine Pilders | 27 | Daughter | General Clerk | New Jersey |
| 33 | Daniel Pilders | 23 | Son | Clerk N.Y.A. | New York |
| 34 | Ann Pilders | 19 | Daughter | Clerk | New Jersey |
| 35 | Michael Parzilla | 44 | Head | Barber | Italy |
| 36 | Mary Parzilla | 41 | Wife | — | New Jersey |
| 37 | Frank Parzilla | 19 | Son | Press Machine | New Jersey |
| 38 | William Parzilla | 16 | Son | — | New Jersey |
| 39 | Mary Lorenzo | 75 | Lodger | — | Italy |
| 40 | Katherine De Lang | 58 | Head | — | New Jersey |
Related Census Records
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)