JC
John Clancy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this John Clancy across the 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Clancy |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | East Weymouth |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Laborer |
| Industry | Fire House |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 865 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | East Weymouth |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Clancy | Head | — | 64 | ~1876 |
| John Clancy | Son | — | 22 | ~1918 |
| Mary Lindbloom | Daughter | — | 26 | ~1914 |
| Daniel Lindbloom | Son | — | 6 | ~1934 |
| Sylvia Lindbloom | Daughter | — | 4 | ~1936 |
| Sarah Clancy | Spouse | — | 60 | ~1880 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clancy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Norfolk-County, Massachusetts
Son, age 22
Norfolk-County, Massachusetts · implied b. ~1918 — 6 household members
| Surname | Clancy |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | East Weymouth |
| 1935 Residence (County) | Norfolk |
| Occupation | Laborer |
| Industry | Fire House |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 865 |
| Highest Grade | H 1 |
| 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 Clancy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Clancy
Son · 1940 · age 22 · b. ~1918 · Massachusetts
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Sibling
Mary Lindbloom
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvia Lindbloom
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Lindbloom
Sibling · 1940 · age 6
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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01634-00436)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Karstunen | 14 | Daughter | — | Massachusetts |
| 2 | Robert Karstunen | 10 | Son | — | Massachusetts |
| 3 | Donald Karstunen | 8 | Son | — | Massachusetts |
| 4 | Charles Getaz | 55 | Head | Ordnance | Wisconsin |
| 5 | Florence Getaz | 41 | Wife | — | Canada English |
| 6 | Walter S. Getaz | 16 | Son | — | Boston |
| 7 | John Holmes | 46 | Head | Draftsman | England |
| 8 | Hauer | 51 | Head | Owner | — |
| 9 | Wife Hauer | None | F | Tavern | — |
| 10 | Katherine Johnston | 37 | Head | — | Canada English |
| 11 | Eileen Johnston | 10 | Daughter | — | Massachusetts |
| 12 | J. Shirley Johnston | 6 | Daughter | — | Massachusetts |
| 13 | George Brown | 60 | Head | — | Maine |
| 14 | Stanley G. Wheeler | 34 | Head | Soldier | Vermont |
| 15 | Bertha V. Wheeler | 36 | Wife | — | Massachusetts |
| 16 | Marilyn V. Wheeler | 3 | Daughter | — | Massachusetts |
| 17 | Forrest D. Tholt | 32 | Head | Still Operator | Massachusetts |
| 18 | Doris M. Tholt | 31 | Wife | — | Maine |
| 19 | Richard Tholt | 3 | Son | — | Massachusetts |
| 20 | Robert Tholt | 1 | Son | — | Massachusetts |
| 21 | Elizabeth Bennett | 54 | Head | — | Massachusetts |
| 22 | Florence Bailey | 60 | Head | — | England |
| 23 | John Clancy | 64 | Head | Iron Worker | Canada English |
| 24 | Sarah Clancy | 60 | Wife | — | Canada English |
| 25 | John P. Clancy THIS PERSON | 22 | Son | Laborer | Massachusetts |
| 26 | Mary Lindbloom | 26 | Daughter | — | Canada English |
| 27 | Daniel J. Lindbloom | 6 | Son | — | New York |
| 28 | Sylvia A. Lindbloom | 4 | Daughter | — | New York |
| 29 | Clifford Gillespie | 33 | Head | Carpenter | Canada English |
| 30 | Viola Gillespie | 29 | Wife | — | Maine |
| 31 | Freeman Gillespie | 9 | Son | — | Massachusetts |
| 32 | Clifford Gillespie | 7 | Son | — | Massachusetts |
| 33 | John Gillespie | 1 | Son | — | Massachusetts |
| 34 | John E. Johnston | 29 | Head | Accountant | Canada English |
| 35 | Emma Johnston | 30 | Wife | — | Massachusetts |
| 36 | Ian A. Johnston | 3 | Son | — | Massachusetts |
| 37 | Ellen Johnston | 2 | Daughter | — | Massachusetts |
| 38 | Mary Ann Johnston | 0 | Daughter | — | Massachusetts |
| 39 | W. Vincent Johnston | 35 | Brother | Builder | Canada English |
| 40 | Mary Almada | 61 | Head | Practical Nurse | 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)