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John Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Kennedy across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Francis & Thomas — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Kennedy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Billing Clerk |
| Industry | Express |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 1352 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Billing Clerk |
| Township / Ward | Medford City |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Kennedy | Daughter | — | 12 | ~1928 |
| Margaret Kennedy | Daughter | — | 20 | ~1920 |
| Thomas Kennedy | Head | — | 52 | ~1888 |
| John Kennedy | Son | — | 22 | ~1918 |
| Catherine Kennedy | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 5 household members
| Surname | Kennedy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Occupation | Billing Clerk |
| Industry | Express |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 1352 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 John Kennedy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Francis Kennedy (~0.92 confidence) and father Thomas Kennedy (~0.92 confidence) and mother Mary Kennedy (~0.92 confidence) and mother Catherine Kennedy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Francis Kennedy
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Thomas Kennedy
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Mary Kennedy
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Catherine Kennedy
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Kennedy
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Mary Kennedy
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Kennedy
Sibling · 1940 · age 20
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 — 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-t0627-01612-00177)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Drauschke | 53 | Head | Supervisor | Germany |
| 42 | Anna Drauschke | 49 | Wife | — | Germany |
| 43 | Paul Jr. Drauschke | 23 | Son | Office Clerk | Massachusetts |
| 44 | Betty Drauschke | 15 | Daughter | — | Massachusetts |
| 45 | Augusta Delander | 57 | Head | — | Massachusetts |
| 46 | Chester Delander | 34 | Son | Salesman | Massachusetts |
| 47 | Alton Delander | 28 | Son | Salesman | Massachusetts |
| 48 | John Delander | 24 | Son | — | Massachusetts |
| 49 | James J. Halpin | 53 | Head | Guard | Pennsylvania |
| 50 | Cora E. Halpin | 20 | Daughter | Waitress | Massachusetts |
| 51 | Donald J. Halpin | 13 | Son | — | Massachusetts |
| 52 | Norman Macleod | 68 | Head | Carpenter | Canada English |
| 53 | Mary Macleod | 70 | Sister | — | Canada English |
| 54 | Irving Paylor | 33 | Head | — | Massachusetts |
| 55 | Mary Paylor | 25 | Wife | — | Eire |
| 56 | Arthur Paylor | 10 | Son | — | Massachusetts |
| 57 | Mary Paylor | 7 | Daughter | — | Massachusetts |
| 58 | Anna Porter | 50 | Head | — | Canada English |
| 59 | Evelyn Porter | 19 | Daughter | — | Massachusetts |
| 60 | James W. Prior | 39 | Head | Adjuster | Massachusetts |
| 61 | Ruth E. Prior | 30 | Wife | — | Massachusetts |
| 62 | Richard Olsen | 62 | Head | Painter | Norway |
| 63 | Marie Olsen | 64 | Wife | — | Denmark |
| 64 | Stanley Lavender | 34 | Head | Sales Solicitor | Massachusetts |
| 65 | Ellen Lavender | 33 | Wife | — | Massachusetts |
| 66 | Patricia Lavender | 4 | Daughter | — | Massachusetts |
| 67 | Jean Lavender | 1 | Daughter | — | Massachusetts |
| 68 | Thomas Kennedy | 52 | Head | Plumber | Massachusetts |
| 69 | Catherine Kennedy | 47 | Wife | — | Massachusetts |
| 70 | John Kennedy THIS PERSON | 22 | Son | Billing Clerk | Massachusetts |
| 71 | Margaret Kennedy | 20 | Daughter | Stenographer | Massachusetts |
| 72 | Mary Kennedy | 12 | Daughter | — | Massachusetts |
| 73 | Thomas Faucette | 32 | Head | Claim Adjuster | Newfoundland |
| 74 | Ethel Faucette | 33 | Wife | — | Newfoundland |
| 75 | Nancy Faucette | 7 | Daughter | — | Massachusetts |
| 76 | Carolyn Faucette | 2 | Daughter | — | Massachusetts |
| 77 | Patrick Faucette | 28 | Head | Steam Engineer | Massachusetts |
| 78 | Dorothea Faucette | 27 | Wife | — | Massachusetts |
| 79 | Patrick Faucette | 1 | Son | — | Massachusetts |
| 80 | Lorne Thomas | 37 | Head | Pharmacist | Nova Scotia |
Pedigree Summary
John + 2 siblings
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)