JL
John Lennon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Lennon across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 10-person household.
Age 28
b. ~1912
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Lennon |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1912 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Edward Lennon | Son | — | 18 | ~1922 |
| George Lennon | Son | — | 15 | ~1925 |
| John Lennon | Head | — | 49 | ~1891 |
| Rita Lennon | Daughter | — | 12 | ~1928 |
| William Lennon | Son | — | 22 | ~1918 |
| Albert Lennon | Son | — | 20 | ~1920 |
| John Lennon | Son | — | 28 | ~1912 |
| Henry Lennon | Son | — | 26 | ~1914 |
| Alice Lennon | Spouse | — | 49 | ~1891 |
| Alice Lennon | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 18
Suffolk, Massachusetts · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lennon |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Salesman |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 28
Suffolk-County, Massachusetts · implied b. ~1912 — 10 household members
| Surname | Lennon |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Industry | 0 |
| 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 Lennon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lennon
Son · 1940 · age 28 · b. ~1912 · Massachusetts
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Sibling
Rita Lennon
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Lennon
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Lennon
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Lennon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lennon
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Lennon
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Lennon
Sibling · 1940 · age 24
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01672-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Shirley Blond | 17 | daughter | — | Massachusetts |
| 42 | George Barrow | 32 | son-in-law | Salesman | Massachusetts |
| 43 | Gertrude Blond | 25 | daughter-in-law | Stenographer | Massachusetts |
| 44 | Joseph Silverman | 56 | Head | Proprietor | Poland |
| 45 | Rose Silverman | 57 | wife | — | Russia |
| 46 | Rose Silverman | 29 | daughter | School Teacher | Massachusetts |
| 47 | Esther Silverman | 23 | daughter | Secretary | Massachusetts |
| 48 | Mary Silverman | 25 | daughter | Solicitor | Massachusetts |
| 49 | Harold Silverman | 20 | daughter | — | Massachusetts |
| 50 | Abraham White | 32 | Head | Salesman | Massachusetts |
| 51 | Lillian White | 30 | wife | Salesgirl | Massachusetts |
| 52 | Philip Cohen | 38 | Head | Salesman | Russia |
| 53 | Lucille Cohen | 36 | wife | — | Massachusetts |
| 54 | Sidney Cohen | 1 | son | — | Massachusetts |
| 55 | John H. Leahy | 72 | Head | — | Nova Scotia |
| 56 | Ronald Leahy | 43 | son | Printer | Canada |
| 57 | Welford Leahy | 42 | son | Linotype Op | Canada |
| 58 | Nora O'Brien | 65 | sister-in-law | — | Canada |
| 59 | Thomas H. O'Neil | 79 | Head | Night Watchman | Ireland |
| 60 | Mary O'Neil | 69 | wife | — | Ireland |
| 61 | Christine O'Neil | 28 | daughter | Typist | Massachusetts |
| 62 | Anna Stuhl | 39 | daughter | — | Massachusetts |
| 63 | Anthony M. Stuhl | 42 | son-in-law | Clerk | Massachusetts |
| 64 | Patrick Curley | 47 | brother-in-law | Store-Room Keeper | Ireland |
| 65 | Louis Fehrenstein | 36 | Head | Cutter | Russia |
| 66 | Gertrude Fehrenstein | 33 | wife | — | Russia |
| 67 | Jason Fehrenstein | 10 | son | — | Massachusetts |
| 68 | Barbara Fehrenstein | 6 | daughter | — | Massachusetts |
| 69 | Anna Fehrenstein | 56 | mother | — | Russia |
| 70 | Elizabeth Fehrenstein | 35 | sister | Clerk | Massachusetts |
| 71 | John J. Lennon | 49 | Head | Fireman | Massachusetts |
| 72 | Alice S. Lennon | 49 | wife | — | Massachusetts |
| 73 | John Lennon THIS PERSON | 28 | son | — | Massachusetts |
| 74 | Henry Lennon | 26 | son | Optician | Massachusetts |
| 75 | Alice Lennon | 24 | daughter | Sales-Girl | Massachusetts |
| 76 | William Lennon | 22 | son | Clerk | Massachusetts |
| 77 | Albert Lennon | 20 | son | Clerk | Massachusetts |
| 78 | Edward Lennon | 18 | son | Delivery Boy | Massachusetts |
| 79 | George Lennon | 15 | son | — | Massachusetts |
| 80 | Rita Lennon | 12 | daughter | — | Massachusetts |
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)