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William Williamson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this William Williamson across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine & Kathryn — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Williamson |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Beverly City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Clerk |
| Industry | Lamp mfg. co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 351 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Beverly City |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Williamson | Head | — | 43 | ~1897 |
| Robert Williamson | Son | — | 19 | ~1921 |
| William Williamson | Son | — | 21 | ~1919 |
| Kathryn Williamson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Essex, Massachusetts
Son, age
Essex, Massachusetts · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 11
Essex, Massachusetts · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | William J. |
| 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
Essex-County, Massachusetts
Son, age 21
Essex-County, Massachusetts · implied b. ~1919 — 4 household members
| Surname | Williamson |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Beverly City |
| 1935 Residence (County) | Essex |
| Occupation | Clerk |
| Industry | Lamp mfg. co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 351 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| 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 Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Williamson (~0.92 confidence) and mother Kathryn Williamson (~0.92 confidence) and mother Catherine Williamson (~0.92 confidence) and father William Williamson (~0.92 confidence) and father William Williamson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Williamson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Kathryn Williamson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Catherine Williamson
b. ~1897
Source mother
● Household
· direct · ~0.92
Father
William Williamson
b. ~1897
Source father
● Household
· direct · ~0.92
Father
William Williamson
b. ~1897
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Williamson
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Robert Williamson
Sibling · 1940 · age 19
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01577-00860)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bertha Slattery | 24 | Wife | Housework | Massachusetts |
| 2 | Paul Slattery | 4 | Son | — | Massachusetts |
| 3 | William J. Williamson | 43 | Head | Telephone Service Foreman | Massachusetts |
| 4 | Kathryn J. Williamson | 47 | Wife | — | Massachusetts |
| 5 | William D. Williamson THIS PERSON | 21 | Son | Clerk | Massachusetts |
| 6 | Robert J. Williamson | 19 | Son | Apprentice Machinist | Massachusetts |
| 7 | Peter Goudreau | 31 | Head | Machine Operator | Canada-Fr |
| 8 | Anthony Goudreau | 27 | Son | Splitting Machine Operator | Massachusetts |
| 9 | Armand Goudreau | 16 | Son | Kitchen Worker | Massachusetts |
| 10 | Ida Goudreau | 23 | Wife | Housework | Massachusetts |
| 11 | Philip Le Blanc | 28 | Head | Laborer | Massachusetts |
| 12 | Ima Le Blanc | 23 | Wife | — | Massachusetts |
| 13 | Robert Le Blanc | 4 | Son | — | Massachusetts |
| 14 | Joseph Le Blanc | 2 | Son | — | Massachusetts |
| 15 | Albert Dube | 35 | Head | Linotype Operator | Massachusetts |
| 16 | Bessie Dube | 30 | Wife | — | Massachusetts |
| 17 | Sylvia Dube | 4 | Daughter | — | Massachusetts |
| 18 | Elizabeth Dube | 3 | Daughter | — | Massachusetts |
| 19 | Jeanne Dube | 1 | Daughter | — | Massachusetts |
| 20 | Albert Smorgunski | 24 | Head | Shipping Clerk | Massachusetts |
| 21 | Mary Smorgunski | 24 | Wife | — | Massachusetts |
| 22 | David Smorgunski | 1 | Son | — | Massachusetts |
| 23 | Leo Tracey | 35 | Head | Machinist | Massachusetts |
| 24 | Ella Tracey | 34 | Wife | Assembler | Massachusetts |
| 25 | Leo, Jr. Tracey | 15 | Son | News Worker | Massachusetts |
| 26 | Richard Tracey | 13 | Son | — | Massachusetts |
| 27 | Mary P. Smith | 59 | Head | — | Massachusetts |
| 28 | Charles B. Smith | 29 | Son | Truck Driver | Massachusetts |
| 29 | Joseph Tanguay | 42 | Head | Store Crusher Laborer | Massachusetts |
| 30 | Mary Tanguay | 43 | Wife | Laborer | Massachusetts |
| 31 | Mary C. Deering | 42 | Head | Elementary School Teacher | Massachusetts |
| 32 | Annie A. Deering | 62 | Sister | — | Massachusetts |
| 33 | John J. Deering | 60 | Brother | — | Massachusetts |
| 34 | George Wasenius | 51 | Head | — | Finland |
| 35 | Alma Wasenius | 51 | Wife | Housework | Finland |
| 36 | Olvi Wasenius | 29 | Daughter | Elementary School Teacher | Massachusetts |
| 37 | Hanna Bell | 60 | Head | Dressmaker | Finland |
| 38 | Arthur Crandall | 30 | Head | Printer | Massachusetts |
| 39 | Mary Crandall | 29 | Wife | — | Massachusetts |
| 40 | Arthur R. Crandall | 4 | Son | — | Massachusetts |
Pedigree Summary
William + 1 sibling
Gen 1 · 5 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)