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John Clifford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Clifford across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Clifford |
| Given Name | John J |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Clifford | Son | — | 14 | ~1926 |
| John Clifford | Son | — | 11 | ~1929 |
| Mary Clifford | Daughter | — | 8 | ~1932 |
| William Clifford | Head | — | 44 | ~1896 |
| Dennis Clifford | Son | — | 13 | ~1927 |
| Bridget Clifford | Spouse | — | 40 | ~1900 |
| Eileen Clifford | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clifford |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 11
Suffolk-County, Massachusetts · implied b. ~1929 — 7 household members
| Surname | Clifford |
| Given Name | John J |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 5 |
| 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 Clifford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Clifford
Son · 1940 · age 11 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
Dennis Clifford
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Clifford
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Clifford
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Clifford
Sibling · 1940 · age 8
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-t0627-01668-00322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Smith | 17 | daughter | — | Massachusetts |
| 2 | Anna M Hennessy | 47 | sister in law | — | Irish Free State |
| 3 | Julia Hennessy | 47 | sister in law | Cook | Irish Free State |
| 4 | Charles Lewis | 37 | head | Chauffeur | Massachusetts |
| 5 | Madeline Lewis | 37 | wife | Clerk | Massachusetts |
| 6 | Ellen Cronin | 74 | mother in law | — | Irish Free State |
| 7 | Henry Foran | 36 | head | Store Keeper | Russia |
| 8 | Sarah Foran | 33 | wife | — | New York |
| 9 | Cynthia Foran | 7 | daughter | — | Massachusetts |
| 10 | Judith Foran | 5 | daughter | — | Massachusetts |
| 11 | Esther Munder | 48 | mother in law | — | Russia |
| 12 | Joseph O'Halloran | 47 | head | Truck Driver | Scotland |
| 13 | Mary O'Halloran | 46 | wife | — | Canada French |
| 14 | James O'Halloran | 17 | son | — | Massachusetts |
| 15 | Maria O'Halloran | 16 | daughter | — | Massachusetts |
| 16 | Louis O'Halloran | 14 | son | — | Massachusetts |
| 17 | Gerard O'Halloran | 12 | son | — | Massachusetts |
| 18 | Jacob Shampolly | 29 | head | Helper On Truck | Massachusetts |
| 19 | Mary Shampolly | 28 | wife | — | Massachusetts |
| 20 | John Shampolly | 5 | son | — | Massachusetts |
| 21 | Eleanor Shampolly | 4 | daughter | — | Massachusetts |
| 22 | Ellen Leonard | 66 | mother in law | — | Irish Free State |
| 23 | William H Thompson | 39 | head | Mechanic | Massachusetts |
| 24 | Anna M Thompson | 35 | wife | — | Massachusetts |
| 25 | Anna M Thompson | 9 | daughter | — | Massachusetts |
| 26 | Marion F Thompson | 5 | daughter | — | Massachusetts |
| 27 | Hugh Halliday | 72 | father in law | Brass Finisher | Scotland |
| 28 | Arthur R Varnas | 63 | head | — | Massachusetts |
| 29 | Lena M Varnas | 54 | wife | — | New Hampshire |
| 30 | William J Clifford | 44 | head | Mason | Irish Free State |
| 31 | Bridget Clifford | 40 | wife | — | Irish Free State |
| 32 | William J Clifford | 14 | son | — | Massachusetts |
| 33 | Dennis Clifford | 13 | son | — | Massachusetts |
| 34 | John J Clifford THIS PERSON | 11 | son | — | Massachusetts |
| 35 | Mary F Clifford | 8 | daughter | — | Massachusetts |
| 36 | Eileen Clifford | 6 | daughter | — | Massachusetts |
| 37 | Mary J Walsh | 50 | head | — | Irish Free State |
| 38 | John J Walsh | 19 | son | Clerk | Massachusetts |
| 39 | Myles H Walsh | 18 | son | — | Massachusetts |
| 40 | Francis H Walsh | 15 | son | — | 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)