JW
John Williamson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this John Williamson across the 1920, 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Harry & Sarah — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Randolph |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Machine Operator |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 496 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Machine Operator |
| Township / Ward | Randolph |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Harry Williamson | Head | — | 63 | ~1877 |
| John Williamson | Son | — | 30 | ~1910 |
| Sarah Williamson | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 20
Suffolk, Massachusetts · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Son, age 30
Norfolk-County, Massachusetts · implied b. ~1910 — 3 household members
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Randolph |
| 1935 Residence (County) | Norfolk |
| Occupation | Machine Operator |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 496 |
| Highest Grade | H 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 Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Williamson (~0.92 confidence) and mother Sarah Williamson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Williamson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Sarah Williamson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Williamson
Son · 1940 · age 30 · b. ~1910 · Massachusetts
★ You are viewing this record
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-t0627-01632-00487)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Mullen | 15 | Son | — | Massachusetts |
| 2 | Paul E. Mullen | 11 | Son | — | Massachusetts |
| 3 | Katherine M. Mullen | 7 | Daughter | — | Massachusetts |
| 4 | Andrew J. Emery | 73 | Father-in-law | Stock Clerk | Massachusetts |
| 5 | Alice Hurley | 62 | Head | — | Canada |
| 6 | Julia Coughlin | 20 | Daughter | Saleswoman | England |
| 7 | Michael Shaheen | 45 | Head | — | Syria |
| 8 | Annie Shaheen | 43 | Wife | — | Syria |
| 9 | Sadie Shaheen | 25 | Daughter | — | Massachusetts |
| 10 | Evelyn Shaheen | 21 | Daughter | — | Massachusetts |
| 11 | John Shaheen | 16 | Son | News Worker | Massachusetts |
| 12 | Marshal Shaheen | 9 | Son | — | Massachusetts |
| 13 | Michael Levanda | 47 | Head | Tool + Die Maker | Poland |
| 14 | Isabel Levanda | 33 | Wife | — | Lithuania |
| 15 | Vincent Ray | 35 | Head | Manager | Rhode Island |
| 16 | Stella Ray | 35 | Wife | Assistant | England |
| 17 | James J. Linnon | 36 | Head | Salesman | Massachusetts |
| 18 | Monica J. Linnon | 34 | Wife | — | Massachusetts |
| 19 | Robert J. Linnon | 7 | Son | — | Massachusetts |
| 20 | Priscilla M. Linnon | 3 | Daughter | — | Massachusetts |
| 21 | Dolores U. Linnon | 0 | Daughter | — | Massachusetts |
| 22 | Ernest C. Guslin | 38 | Head | Millwright | Massachusetts |
| 23 | Alice Guslin | 38 | Wife | — | Massachusetts |
| 24 | Ernest Jr. Guslin | 16 | Son | — | Massachusetts |
| 25 | Mildred J. Guslin | 14 | Daughter | — | Massachusetts |
| 26 | Walter W. Guslin | 12 | Son | — | Massachusetts |
| 27 | Barbara A. Guslin | 3 | Daughter | — | Massachusetts |
| 28 | C. Adolph | 66 | Father-in-law | Stitcher | Germany |
| 29 | Margaret E. Adolph | 56 | Mother-in-law | — | Massachusetts |
| 30 | Ethel Kenny | 43 | Head | — | Massachusetts |
| 31 | Barbara Kenny | 13 | Daughter | — | Massachusetts |
| 32 | James Kenny | 11 | Son | — | Massachusetts |
| 33 | Charles Snow | 35 | Head | Salesman | Massachusetts |
| 34 | Catherine Snow | 29 | Wife | — | Massachusetts |
| 35 | Phyllis A. Snow | 4 | Daughter | — | Massachusetts |
| 36 | Charles Jr. Snow | 12 | Son | — | Massachusetts |
| 37 | William H. Kahler | 55 | Head | Manager | Massachusetts |
| 38 | Harry Williamson | 63 | Head | Foreman | England |
| 39 | Sarah Williamson | 62 | Wife | — | England |
| 40 | John Williamson THIS PERSON | 30 | Son | Machine Operator | Massachusetts |
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)