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William Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Nicholson across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1902), then head of a 6-person household.
Age 38
b. ~1902
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Nicholson |
| Given Name | William S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | bank clerk |
| Industry | national bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2900 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bank Clerk |
| Township / Ward | Malden City |
| Est. Birth Year | ~1902 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Nicholson | Daughter | — | 12 | ~1928 |
| William Nicholson | Head | — | 38 | ~1902 |
| Eleanor Nicholson | Daughter | — | 7 | ~1933 |
| George Nicholson | Son | — | 11 | ~1929 |
| Edna Nicholson | Spouse | — | 33 | ~1907 |
| William Nicholson | Son | — | 9 | ~1931 |
Census Appearances
1930
Middlesex, Massachusetts
Head, age 28
Middlesex, Massachusetts · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Occupation | bank clerk |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | no |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 38
Middlesex-County, Massachusetts · implied b. ~1902 — 6 household members
| Surname | Nicholson |
| Given Name | William S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | bank clerk |
| Industry | national bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2900 |
| 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 William Nicholson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Nicholson
Head · 1940 · age 38 · b. ~1902 · 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01609-00089)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roderick M Murray | 44 | Head | Foreman | Massachusetts |
| 2 | Mary C Murray | 39 | Wife | — | Massachusetts |
| 3 | Bernice Murray | 11 | Daughter | — | Massachusetts |
| 4 | Marie Murray | 7 | Daughter | — | Massachusetts |
| 5 | Roderick J Murray | 6 | Son | — | Massachusetts |
| 6 | George Murray | 5 | Son | — | Massachusetts |
| 7 | Patricia A Murray | 3 | Daughter | — | Massachusetts |
| 8 | Carl O Olsson | 53 | Head | Carpenter | Sweden |
| 9 | Ella R Olsson | 45 | Wife | — | Denmark |
| 10 | Nancy Olsson | 7 | Daughter | — | Massachusetts |
| 11 | William H Farrell | 43 | Head | Superintendent | Massachusetts |
| 12 | Esther L Farrell | 42 | Wife | — | Massachusetts |
| 13 | Malcolm Farrell | 14 | Son | — | Massachusetts |
| 14 | William Farrell | 9 | Son | — | Massachusetts |
| 16 | Roy P Clough | 55 | Head | Provisioner | Vermont |
| 17 | Audra M Clough | 44 | Wife | — | Massachusetts |
| 18 | Arved P Clough | 25 | Son | Enamel Mixer | Vermont |
| 19 | William G Strong | 60 | Head | Investigator | England |
| 20 | Florence P Strong | 57 | Wife | — | Canada English |
| 21 | John H Simpson | 80 | Head | — | Massachusetts |
| 22 | Theresa Simpson | 77 | Wife | — | Massachusetts |
| 23 | Martin J Dempsey | 43 | Son-in-law | Fireman | Massachusetts |
| 24 | Anne Dempsey | 25 | Daughter | — | Massachusetts |
| 25 | A. Andrew Swanson | 47 | Head | Superintendent | Sweden |
| 26 | Ida A Swanson | 44 | Wife | — | Sweden |
| 27 | Knute E Lonnberg | 59 | Head | Die Maker | Sweden |
| 28 | Rebecca Lonnberg | 56 | Wife | — | Sweden |
| 29 | Roy Lonnberg | 20 | Son | — | Massachusetts |
| 30 | William S Nicholson THIS PERSON | 38 | Head | Bank Clerk | Massachusetts |
| 31 | Edna Nicholson | 33 | Wife | — | New Hampshire |
| 32 | Dorothy Nicholson | 12 | Daughter | — | Massachusetts |
| 33 | George Nicholson | 11 | Son | — | Massachusetts |
| 34 | William C Nicholson | 9 | Son | — | Massachusetts |
| 35 | Eleanor Nicholson | 7 | Daughter | — | New Hampshire |
| 37 | Hollis E Stiles | 36 | Head | Service Manager | Massachusetts |
| 38 | E. Marie Stiles | 37 | Wife | — | South Carolina |
| 39 | Edwin H Stiles | 8 | Son | — | Massachusetts |
| 40 | Ruth N Stiles | 5 | 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)