JN
John Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Nicholson across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 5-person household.
Age 45
b. ~1895
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Nicholson |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Baker |
| Industry | Private School |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Baker |
| Township / Ward | Boston City |
| Est. Birth Year | ~1895 |
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 |
|---|---|---|---|---|
| Katherine Nicholson | Spouse | — | 47 | ~1893 |
| Roderick Nicholson | Son | — | 11 | ~1929 |
| John Nicholson | Son | — | 21 | ~1919 |
| Dolores Nicholson | Daughter | — | 18 | ~1922 |
| John Nicholson | Head | — | 45 | ~1895 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 25
Middlesex, Massachusetts · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1910 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Baker |
| Industry | Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Suffolk, Massachusetts
Head, age 35
Suffolk, Massachusetts · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1916 |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Suffolk-County, Massachusetts
Head, age 45
Suffolk-County, Massachusetts · implied b. ~1895 — 5 household members
| Surname | Nicholson |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Occupation | Baker |
| Industry | Private School |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Nicholson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Nicholson
Head · 1940 · age 45 · b. ~1895 · Massachusetts
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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
21 people indexed on this census page (nara:1940:m-t0627-01669-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chester A. Simpson | 42 | Head | Driver | Canada-English |
| 2 | Elizabeth Simpson | 38 | Wife | — | Canada-English |
| 3 | Doris Simpson | 15 | Daughter | — | Massachusetts |
| 4 | James Simpson | 17 | Son | — | Massachusetts |
| 5 | John W. Nicholson THIS PERSON | 45 | Head | Baker | Scotland |
| 6 | Katherine Nicholson | 47 | Wife | Cook | Scotland |
| 7 | John W. Jr. Nicholson | 21 | Son | Technician | Massachusetts |
| 8 | Dolores Nicholson | 18 | Daughter | — | Massachusetts |
| 9 | Roderick Nicholson | 11 | Son | — | Massachusetts |
| 10 | Ellen F. Corkery | 52 | Head | Sewer | Massachusetts |
| 11 | Paul Corkery | 20 | Son | Chipper | Massachusetts |
| 12 | Mary Corkery | 18 | Daughter | Box-Maker | Massachusetts |
| 13 | Mary J. Farrell | 27 | Head | Stenographer | Massachusetts |
| 14 | Teresa Farrell | 25 | Sister | Clerk | Massachusetts |
| 15 | Eleanor Farrell | 23 | Sister | Telephone Operator | Massachusetts |
| 16 | John D. Kaufman | 32 | Head | Salesman | New York |
| 17 | Louise Kaufman | 29 | Wife | Secretary | New York |
| 18 | John D. Jr. Kaufman | 3 | Son | — | New York |
| 19 | Joseph Fallon | 59 | Head | Laborer | Massachusetts |
| 20 | Delia Fallon | 52 | Wife | — | Northern Ireland |
| 21 | Margaret Fallon | 19 | Daughter | Salesgirl | 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)