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John Cleary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Cleary across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1904), then head of a 10-person household.
Age 36
b. ~1904
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Cleary |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | steam shovel |
| Industry | excavating |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 369 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Steam Shovel |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Mary Cleary | Daughter | — | 40 | ~1900 |
| Catherine Kelley | Daughter | — | 43 | ~1897 |
| John Cleary | Son | — | 36 | ~1904 |
| William Cleary | Son | — | 23 | ~1917 |
| Francis Cleary | Son | — | 26 | ~1914 |
| Margaret Kelley | Other | — | 16 | ~1924 |
| Florence Cleary | Daughter | — | 27 | ~1913 |
| H Cleary | Head | — | 77 | ~1863 |
| Margaret Cleary | Spouse | — | 77 | ~1863 |
| Mary Kelley | Other | — | 18 | ~1922 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 26
Middlesex, Massachusetts · implied b. ~1904 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cleary |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 36
Middlesex-County, Massachusetts · implied b. ~1904 — 10 household members
| Surname | Cleary |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Occupation | steam shovel |
| Industry | excavating |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 369 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Cleary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Cleary
Son · 1940 · age 36 · b. ~1904 · Massachusetts
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Sibling
Mary Cleary
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Kelley
Sibling · 1940 · age 43
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Cleary
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Cleary
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Cleary
Sibling · 1940 · age 27
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-t0627-01684-00214)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ben Bessman | 33 | head | Restaurant | Massachusetts |
| 2 | Rose Bessman | 32 | wife | Bookkeeper | Russia |
| 3 | Sara Bessman | 5 | daughter | — | Massachusetts |
| 4 | H Cleary | 77 | head | Ironworker | Massachusetts |
| 5 | Margaret Cleary | 77 | wife | — | Massachusetts |
| 6 | Catherine Kelley | 43 | daughter | Tipper | Massachusetts |
| 7 | John Cleary THIS PERSON | 36 | son | Steam Shovel | Massachusetts |
| 8 | Florence Cleary | 27 | daughter | Nurse | Massachusetts |
| 9 | Francis Cleary | 26 | son | Loader | Massachusetts |
| 10 | William Cleary | 23 | son | Truck Driver | Massachusetts |
| 11 | Mary Kelley | 18 | granddaughter | — | Massachusetts |
| 12 | Margaret Kelley | 16 | granddaughter | — | Massachusetts |
| 13 | Mary Cleary | 40 | daughter | — | Massachusetts |
| 14 | Hillel Glass | 40 | head | Lawyer | Russia |
| 15 | Dorothy B Glass | 38 | wife | Secretary | Massachusetts |
| 16 | Barton Glass | 10 | son | — | Massachusetts |
| 17 | Gerald Glass | 6 | son | — | Massachusetts |
| 18 | Sallie Dardin | 28 | sister-in-law | Clerk | Massachusetts |
| 19 | Francis Millerick | 52 | head | Salesman | Massachusetts |
| 20 | Mary Millerick | 54 | wife | Cashier | Sweden |
| 21 | Mary E Millerick | 30 | daughter | Secretary | Massachusetts |
| 22 | George Millerick | 22 | son | Office Work | Massachusetts |
| 23 | Marion Alonquist | 9 | niece | — | Massachusetts |
| 24 | Daniel Mahoney | 73 | head | Ironworker | Eire |
| 25 | Elizabeth Mahoney | 71 | wife | Houseworker | Eire |
| 26 | Mary Mahoney | 30 | daughter | Clerk | Massachusetts |
| 27 | Margaret Mahoney | 27 | daughter | Clerk | Massachusetts |
| 28 | John Mcnamara | 66 | head | Spreader | Eire |
| 29 | Catherine Mcnamara | 66 | wife | Houseworker | Eire |
| 30 | Manuel Rogers | 54 | head | Laborer | Portugal |
| 31 | Augusta Rogers | 52 | wife | Housewife | Massachusetts |
| 32 | Frank Rogers | 20 | son | Book Binder | Massachusetts |
| 33 | John Henley | 47 | head | Book Binder | Massachusetts |
| 34 | Loretta Henley | 38 | wife | Housewife | Massachusetts |
| 35 | Loretta Henley | 8 | daughter | — | Massachusetts |
| 36 | Constance Henley | 5 | daughter | — | Massachusetts |
| 37 | Fredrick Rumplet | 66 | head | Custom Inspector | New York |
| 38 | Margaret Rumplet | 53 | wife | — | France |
| 39 | Charles Rumplet | 28 | son | Sales Manager | Massachusetts |
| 40 | Barbara Rumplet | 13 | 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)