MK
Margaret Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Passaic-County, New Jersey
Our Model Tree links this Margaret Kennedy across the 1920, 1930 and 1940 US Censuses in Passaic-County, New Jersey (XGBoost, ~Confirmed), with identified parents Leo & Otto — first a daughter (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Passaic-County, New Jersey |
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Clifton |
| 1935 Residence (County) | Passaic |
| Additional Details | |
| Occupation | Clerk-Typist |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Clerk-Typist |
| Township / Ward | Passaic City |
| Est. Birth Year | ~1919 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Anita Kennedy | Daughter | — | 22 | ~1918 |
| Margaret Kennedy | Daughter | — | 21 | ~1919 |
| Eleanor Kennedy | Daughter | — | 16 | ~1924 |
| Mary Kennedy | Daughter | — | 7 | ~1933 |
| Otto Kennedy | Head | — | 52 | ~1888 |
| Thomas Kennedy | Son | — | 12 | ~1928 |
| David Kennedy | Son | — | 10 | ~1930 |
| Raymond Kennedy | Son | — | 5 | ~1935 |
| Clifford Kennedy | Son | — | 18 | ~1922 |
| Thomasine Kennedy | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Passaic, New …
Daughter, age 1
Passaic, New Jersey · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Passaic, New …
Daughter, age 11
Passaic, New Jersey · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Passaic-County, New …
Daughter, age 21
Passaic-County, New Jersey · implied b. ~1919 — 10 household members
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Clifton |
| 1935 Residence (County) | Passaic |
| Occupation | Clerk-Typist |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 1935 Residence | New Jersey |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leo Kennedy (~0.92 confidence) and father Otto Kennedy (~0.92 confidence) and mother Alice Kennedy (~0.92 confidence) and mother Anna Kennedy (~0.92 confidence) and father James Kennedy (~0.92 confidence) and mother Thomasine Kennedy (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leo Kennedy
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Otto Kennedy
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Alice Kennedy
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Anna Kennedy
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
James Kennedy
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Thomasine Kennedy
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Kennedy
Daughter · 1940 · age 21 · b. ~1919 · New Jersey
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Sibling
Raymond Kennedy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anita Kennedy
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clifford Kennedy
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Kennedy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Kennedy
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Kennedy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Kennedy
Sibling · 1940 · age 12
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 — Passaic-County, New Jersey
Open full size
1940 US Federal Census — Passaic-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02378-00077)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter G. Pfeil | 53 | Head | Assistant Treasurer | Illinois |
| 2 | Marjory D. Pfeil | 50 | Wife | — | D. C. |
| 3 | Walter G. Jr. Pfeil | 24 | Son | Electrician | New Jersey |
| 4 | Andrew D. Pfeil | 21 | Son | Machine Operator | New Jersey |
| 5 | John C. Pfeil | 18 | Son | Chemist | New Jersey |
| 6 | William Rupp | 48 | Head | Merchant | New York |
| 7 | Florence B. Rupp | 48 | Wife | — | New York |
| 8 | Jean Elizabeth Rupp | 16 | Daughter | — | New Jersey |
| 9 | William Rupp | 12 | Son | — | New Jersey |
| 10 | David C. Ralison | 55 | Servant | House Man | Massachusetts |
| 11 | Otto Kennedy | 52 | Head | — | Massachusetts |
| 12 | Thomasine Kennedy | 48 | Wife | — | Connecticut |
| 13 | Anita Kennedy | 22 | Daughter | Comptometrist | New Jersey |
| 14 | Margaret Kennedy THIS PERSON | 21 | Daughter | Clerk-Typist | New Jersey |
| 15 | Clifford Kennedy | 18 | Son | — | New Jersey |
| 16 | Eleanor Kennedy | 16 | Daughter | — | New Jersey |
| 17 | Thomas Kennedy | 12 | Son | — | New Jersey |
| 18 | David Kennedy | 10 | Son | — | New Jersey |
| 19 | Mary Elizabeth Kennedy | 7 | Daughter | — | New Jersey |
| 20 | Raymond Kennedy | 5 | Son | — | New Jersey |
| 21 | Henry Speer | 84 | Head | — | New Jersey |
| 22 | Ida Speer | 74 | Wife | — | New Jersey |
| 23 | Lillian Speer | 44 | Daughter | Librarian | New Jersey |
| 24 | Elsa Speer | 37 | Daughter | — | New Jersey |
| 25 | Dora Brandt | 79 | Sister | — | New Jersey |
| 26 | Bert H. Mcilvain | 67 | Head | Merchant | Canada |
| 27 | Rachel Mcilvain | 59 | Wife | — | New York |
| 28 | Edward L. Shepherd | 35 | Son in law | — | New York |
| 29 | Ferrand Walker | 42 | Head | Floor Salesman | New Jersey |
| 30 | Winifred D. Walker | 38 | Wife | — | New York |
| 31 | Virginia Ann Walker | 17 | Daughter | — | New Jersey |
| 32 | Ferrand E. Jr. Walker | 15 | Son | — | New Jersey |
| 33 | Harold B. Cohen | 36 | Head | Lawyer | New Jersey |
| 34 | Sylvia Cohen | 32 | Wife | Teacher | New Jersey |
| 35 | Martin Cohen | 6 | Son | — | New Jersey |
| 36 | Anne Kalyn | 14 | Servant | Maid | Pennsylvania |
| 37 | Sylvan Strauss | 35 | Head | Manufacturer | New York |
| 38 | Clarisse Strauss | 33 | Wife | — | New York |
| 39 | Peter Strauss | 4 | Son | — | New York |
| 40 | Elizabeth Hertzberg | 63 | Mother in law | — | England |
Pedigree Summary
Margaret + 7 siblings
Gen 1 · 6 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)