RK
Robert Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Robert Kennedy across the 1910, 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents William & Mabel — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Kennedy |
| Given Name | Robert L. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Watkins Box Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2500 |
| Highest Grade | C 4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Draftsman |
| Township / Ward | Bloomfield Town |
| Est. Birth Year | ~1910 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Mildred Kennedy | Daughter | — | 28 | ~1912 |
| Mable Kennedy | Head | — | 66 | ~1874 |
| Robert Kennedy | Son | — | 30 | ~1910 |
Census Appearances
1910
Essex, New …
Son, age
Essex, New Jersey · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| 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
Essex, New …
Son, age 10
Essex, New Jersey · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| 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 |
| Mother Tongue | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 20
Essex, New Jersey · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Draftsman |
| Industry | G. Thomas Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Son, age 30
Essex-County, New Jersey · implied b. ~1910 — 3 household members
| Surname | Kennedy |
| Given Name | Robert L. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Occupation | Draftsman |
| Industry | Watkins Box Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2500 |
| Highest Grade | C 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 Robert Kennedy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Kennedy (~0.92 confidence) and mother Mabel Kennedy (~0.92 confidence) and mother Mabel Kennedy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Kennedy
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Mabel Kennedy
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Mabel Kennedy
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Kennedy
Son · 1940 · age 30 · b. ~1910 · New Jersey
★ You are viewing this record
Sibling
Mildred Kennedy
Sibling · 1940 · age 28
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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02329-00667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dillard Marcum | 34 | Head | Tel. Operator | Virginia |
| 2 | Clare Marcum | 34 | Wife | — | Virginia |
| 3 | John Mckinnon | 37 | Head | Machinist | Scotland |
| 4 | Elsa Mckinnon | 31 | Wife | — | New Jersey |
| 5 | Jane Mckinnon | 3 | daughter | — | New Jersey |
| 6 | John Bolland | 41 | Head | Printer | Scotland |
| 7 | Ethel W. Bolland | 32 | Wife | — | Scotland |
| 8 | Ethel Bolland | 8 | daughter | — | Newark |
| 9 | Margaret Bolland | 7 | daughter | — | Kearny |
| 10 | Joseph Massie | 38 | Head | Salesman | Scotland |
| 11 | Margaret Massie | 36 | Wife | — | England |
| 12 | Gladys Massie | 13 | daughter | — | New York |
| 13 | Joyce Massie | 12 | daughter | — | — |
| 14 | Alan Massie | 9 | son | — | — |
| 15 | Mable Kennedy | 66 | Head | — | New Jersey |
| 16 | Robert L. Kennedy THIS PERSON | 30 | son | Draftsman | New Jersey |
| 17 | Mildred Kennedy | 28 | daughter | Office Work | New Jersey |
| 18 | William Staiger | 50 | Head | Bookkeeper | Scotland |
| 19 | Margaret Staiger | 47 | Wife | — | Scotland |
| 20 | Michael Lavisioffy | 31 | Head | Sign Painter | Pennsylvania |
| 21 | Linda Lavisioffy | 31 | Wife | — | Pennsylvania |
| 22 | Delores Lavisioffy | 9 | daughter | — | Orange, N.J. |
| 23 | Lillian Lavisioffy | 7 | daughter | — | New Jersey |
| 24 | Mitchel Lavisioffy | 6 | son | — | New Jersey |
| 25 | Janet Lavisioffy | 4 | daughter | — | New Jersey |
| 26 | Phyllis Lavisioffy | 3 | daughter | — | New Jersey |
| 27 | Russel Kane | 33 | Head | Salesman | New York |
| 28 | Gladys Kane | 27 | Wife | — | Bloomfield |
| 29 | Irene Kane | 10 | daughter | — | New Jersey |
| 30 | Robert Kane | 8 | son | — | New Jersey |
| 31 | Audrey Kane | 5 | daughter | — | New Jersey |
| 32 | Normane Kane | 1 | daughter | — | New Jersey |
| 33 | George Jensen | 68 | Head | Inspection | New Jersey |
| 34 | Theodore Jensen | 66 | Father | — | Denmark |
| 35 | Christine Jensen | 65 | Mother | — | Denmark |
| 36 | Howard Jensen | 30 | Head | Mechanic | New Jersey |
| 37 | Mary Jensen | 29 | Wife | — | New Jersey |
| 38 | Howard Jensen | 5 | son | — | New Jersey |
| 39 | Roland Jensen | 4 | son | — | New Jersey |
| 40 | Lewis Jensen | 34 | Head | Special Guard | New Jersey |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 3 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)