RK
Robert Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Robert Kennedy across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Alexander & Alice — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Kennedy |
| Given Name | Robert D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | copywriter |
| Industry | advertising |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1820 |
| Highest Grade | C 3 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Copywriter |
| Township / Ward | Watertown Town |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Kennedy | Head | — | 31 | ~1909 |
| Robert Kennedy | Son | — | 1 | ~1939 |
| Catherine Kennedy | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Robert B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 31
Middlesex-County, Massachusetts · implied b. ~1909 — 3 household members
| Surname | Kennedy |
| Given Name | Robert D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Occupation | copywriter |
| Industry | advertising |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1820 |
| Highest Grade | C 3 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alexander Kennedy (~0.92 confidence) and mother Alice Kennedy (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alexander Kennedy
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Alice Kennedy
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Kennedy
Head · 1940 · age 31 · b. ~1909 · Massachusetts
★ 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01621-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary E. Mcguirk | 5 | daughter | — | Massachusetts |
| 42 | Patricia A. Mcguirk | 3 | daughter | — | Massachusetts |
| 43 | Gustaf Svenson | 61 | Head | Ordinary Engineer | Sweden |
| 44 | Ellen E. S. Svenson | 60 | wife | — | Sweden |
| 45 | Helen E. Svenson | 31 | daughter | Teacher | Illinois |
| 46 | Bernard S. Mchugh | 48 | Head | Manager | Massachusetts |
| 47 | Helen R. Mchugh | 50 | wife | — | Canada-English |
| 48 | Joseph R. Mchugh | 19 | son | — | Massachusetts |
| 49 | Nellie M. Mchugh | 15 | daughter | — | Massachusetts |
| 50 | Edward A. Stevens | 37 | Head | Public Accountant | Massachusetts |
| 51 | Ruth M. Stevens | 34 | wife | — | Maine |
| 52 | William H. Fellows | 43 | Head | — | Massachusetts |
| 53 | Margaret C. Fellows | 42 | wife | Auditor | Massachusetts |
| 54 | Jane E. Fellows | 7 | daughter | — | Massachusetts |
| 55 | Harold S. Hunt | 44 | Head | Draftsman | Massachusetts |
| 56 | Ida E. Hunt | 46 | wife | — | Massachusetts |
| 57 | Evelyn R. Hunt | 19 | daughter | — | Massachusetts |
| 58 | Frederick S. Chase | 65 | Head | Foreman Steam Fitter | Maine |
| 59 | Marcia C. Chase | 55 | wife | — | Canada-English |
| 60 | Irving F. Hull | 49 | Head | Sales Manager Used Cars | Massachusetts |
| 61 | Ruth M. Hull | 43 | wife | — | Massachusetts |
| 62 | Virginia B. Hull | 21 | daughter | — | Massachusetts |
| 63 | Florence M. Hull | 19 | daughter | Saleslady | Massachusetts |
| 64 | Matilda E. Ford | 52 | Head | Teacher | Massachusetts |
| 65 | William J. Mccarthy | 43 | brother in law | Electrician | Massachusetts |
| 66 | Catherine F. Mccarthy | 46 | sister | — | Massachusetts |
| 67 | Theodore Friedrichs | 37 | Head | Assistant Superintendent | Pennsylvania |
| 68 | Margaret M. Friedrichs | 37 | wife | — | Pennsylvania |
| 69 | Theodore Jr. Friedrichs | 8 | son | — | Massachusetts |
| 70 | David Friedrichs | 3 | son | — | Massachusetts |
| 71 | Robert D. Kennedy THIS PERSON | 31 | Head | Copywriter | Massachusetts |
| 72 | Catherine R. Kennedy | 31 | wife | — | Massachusetts |
| 73 | Robert J. Kennedy | 1 | son | — | Massachusetts |
| 74 | Thaddeus R. Huttell | 32 | Head | Accountant | Vermont |
| 75 | Phyllis G. Huttell | 27 | wife | — | Scotland |
| 76 | Richard R. Huttell | 3 | son | — | Massachusetts |
| 77 | Douglas R. Huttell | 1 | son | — | Massachusetts |
| 78 | Gordon Lloyd | 47 | Head | Machinist | Vermont |
| 79 | Catherine E. Lloyd | 40 | wife | — | Vermont |
| 80 | Francis E. Lennon | 51 | Head | Machinist | Massachusetts |
Pedigree Summary
Robert
Gen 1 · 2 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)