MK
Margaret Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Margaret Kennedy across the 1910, 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed), with identified parents Thomas & Mamie — first a daughter (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Kennedy |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | ELIZABETH CITY |
| 1935 Residence (County) | UNION |
| Additional Details | |
| Occupation | Private Secretary |
| Industry | Textile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1960 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Private Secretary |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1909 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Kennedy | Daughter | — | 31 | ~1909 |
| Mary Kennedy | Head | — | 50 | ~1890 |
| Block Here Ends | Other | — | — | |
| James Kennedy | Son | — | 34 | ~1906 |
Census Appearances
1910
Union, New …
Daughter, age
Union, New Jersey · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Union, New …
Daughter, age 10
Union, New Jersey · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Daughter, age 21
Union, New Jersey · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Salesman |
| Industry | Gas station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Daughter, age 31
Union-County, New Jersey · implied b. ~1909 — 4 household members
| Surname | Kennedy |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | ELIZABETH CITY |
| 1935 Residence (County) | UNION |
| Occupation | Private Secretary |
| Industry | Textile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1960 |
| Highest Grade | Hs 2 |
| 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 Margaret Kennedy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Kennedy (~0.92 confidence) and mother Mamie Kennedy (~0.92 confidence) and mother Mary Kennedy (~0.92 confidence) and mother Mary Kennedy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Kennedy
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mamie Kennedy
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary Kennedy
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Kennedy
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Kennedy
Daughter · 1940 · age 31 · b. ~1909 · New Jersey
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Sibling
James Kennedy
Sibling · 1940 · age 34
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02400-00485)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Woodruff | 10 | Daughter | — | New Jersey |
| 42 | Margaret Woodruff | 7 | Daughter | — | New Jersey |
| 43 | Emily Drake | 44 | Housekeeper | Housekeeper | New Jersey |
| 44 | Marie Kloepher | 75 | Lodger | — | Germany |
| 45 | Charles S. Baines | 57 | Head | Credit Man | Canada |
| 46 | Mabel S. Baines | 54 | Wife | — | New York |
| 47 | Robert S. Baines | 14 | Son | — | New Jersey |
| 48 | William C. Stephens | 74 | Head | — | Germany |
| 49 | Laura S. Stephens | 56 | Wife | — | New Jersey |
| 50 | Edwin Stowell | 42 | Head | Mechanic | Sweden |
| 51 | Florence Stowell | 29 | Wife | Operator | New York |
| 52 | Edwin Stowell | 3 | Son | — | New Jersey |
| 53 | William Harris | 51 | Head | Electrician | New York |
| 54 | Clara Harris | 51 | Wife | — | New Jersey |
| 55 | Mildred Harris | 14 | Daughter | — | New Jersey |
| 56 | Mary Moran | 83 | Mother-in-law | — | New York |
| 57 | Charles Woodall | 59 | Head | Broker | England |
| 58 | Velma Woodall | 44 | Wife | — | New Jersey |
| 59 | Mary Kennedy | 50 | Head | — | New Jersey |
| 60 | James P. Kennedy | 34 | Son | Foreman | New Jersey |
| 61 | Margaret M. Kennedy THIS PERSON | 31 | Daughter | Private Secretary | New Jersey |
| 62 | Block 70 + Begins Here Ends | None | BLOCK 71 | — | — |
| 63 | Anthony Miltenberger | 56 | Head | Shipping Clerk | New York |
| 64 | Julia Miltenberger | 51 | Wife | — | New Jersey |
| 65 | Grace Miltenberger | 20 | Daughter | Stenographer | New Jersey |
| 66 | Louis Archambault | 60 | Head | Inspector | Connecticut |
| 67 | Mary Archambault | 61 | Wife | — | New Jersey |
| 68 | Louis Jr. Archambault | 28 | Son | Installer | New Jersey |
| 69 | Anna E. Donovan | 54 | Sister-in-law | — | New Jersey |
| 70 | Edmund Pillar | 52 | Head | Welder | New Jersey |
| 71 | Ella Pillar | 56 | Wife | — | New Jersey |
| 72 | Joseph A. Delhagen | 55 | Head | Weigher | New Jersey |
| 73 | Josephine Delhagen | 54 | Wife | — | New Jersey |
| 74 | Alfred Hansen | 55 | Lodger | Office Clerk | Norway |
| 75 | William Hunter | 52 | Head | Treater | Massachusetts |
| 76 | Mary Hunter | 48 | Wife | — | Eire |
| 77 | Marie Hunter | 25 | Daughter | Nurse | New Jersey |
| 78 | Dorothy Hunter | 16 | Daughter | — | New Jersey |
| 79 | Joseph Yenney | 50 | Head | Tool Maker | Hungary |
| 80 | Barbara Yenney | 47 | Wife | — | Hungary |
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)