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Sarah Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Sarah Hamilton across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Hamilton |
| Given Name | Sarah E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Thread mill |
| Industry | PW |
| Class of Worker | 475 |
| Highest Grade | Hs 3 |
| 1935 Residence | 40 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Thread Mill |
| Township / Ward | Millbury Town |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| Sarah Hamilton | Daughter | — | 21 | ~1919 |
| John Hamilton | Head | — | 56 | ~1884 |
| Mary Hamilton | Daughter | — | 20 | ~1920 |
| John Hamilton | Son | — | 17 | ~1923 |
| Mary Hamilton | Spouse | — | 53 | ~1887 |
| Ellen Hamilton | Daughter | — | 14 | ~1926 |
| William Hamilton | Son | — | 22 | ~1918 |
Census Appearances
1920
Worcester, Massachusetts
Daughter, age 1
Worcester, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Sarah |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Daughter, age 11
Worcester, Massachusetts · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Sarah |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Daughter, age 21
Worcester-County, Massachusetts · implied b. ~1919 — 7 household members
| Surname | Hamilton |
| Given Name | Sarah E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Worcester |
| Occupation | Thread mill |
| Industry | PW |
| Class of Worker | 475 |
| Highest Grade | Hs 3 |
| 1935 Residence | 40 |
| 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 Sarah Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Hamilton (~0.92 confidence) and father John Hamilton (~0.92 confidence) and mother Mary Hamilton (~0.92 confidence) and mother Mary Hamilton (~0.92 confidence) and mother Mary Hamilton (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hamilton
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Hamilton
b. ~1844
Source father
● Household
· direct · ~0.92
Mother
Mary Hamilton
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Hamilton
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Hamilton
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Sarah Hamilton
Daughter · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
William Hamilton
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Hamilton
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hamilton
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Hamilton
Sibling · 1940 · age 14
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01652-00737)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William S. Jr. Macjewski | 2 | Great grand son | — | Massachusetts |
| 42 | John E. Dunleavy | 66 | Head | — | Massachusetts |
| 43 | Letitia Dunleavy | 63 | Wife | — | Nova Scotia |
| 44 | Frederick W. Dunleavy | 34 | Son | Wire Mill | Massachusetts |
| 45 | Basil Dunleavy | 32 | Son | Woolen Mill | Massachusetts |
| 46 | Raymond M. Geldart | 22 | Son-in-law | 40 | Massachusetts |
| 47 | Dorothy D. Geldart | 26 | Daughter | — | Massachusetts |
| 48 | James J. Maloney | 52 | Head | Town Landscaping | Massachusetts |
| 49 | Ellen H. Maloney | 52 | Wife | — | Scotland |
| 50 | James J. Jr. Maloney | 20 | Son | Dye House | Massachusetts |
| 51 | J. Maurice Maloney | 15 | Son | — | Massachusetts |
| 52 | Thomas H. Maloney | 13 | Son | — | Massachusetts |
| 53 | Clara Ellis | 61 | Head | — | England |
| 54 | Lillian Ellis | 39 | Daughter | Pw | England |
| 55 | Frederick P. Ellis | 21 | Son | Grocery Store | Massachusetts |
| 56 | Rose Nelson | 38 | Daughter | — | England |
| 57 | Barbara E. Nelson | 14 | Grand daughter | — | Massachusetts |
| 58 | Beatrice M. Nelson | 13 | Grand child | — | Massachusetts |
| 59 | Patrick J. Gibson | 51 | Head | Pw | Scotland |
| 60 | Ethel Gibson | 28 | Daughter | — | Massachusetts |
| 61 | William J. Gibson | 24 | Son | Woolen Mill | Massachusetts |
| 62 | C. Anita Cancelled | 22 | Daughter | Sanitarium | Massachusetts |
| 63 | Catherine V. Hamilton | 70 | Sister-in-law | — | Scotland |
| 64 | John J. Hamilton | 56 | Head | Pw | Scotland |
| 65 | Mary E. Hamilton | 53 | Wife | Standard Mill Office | Massachusetts |
| 66 | William J. Hamilton | 22 | Son | Dye House | Massachusetts |
| 67 | Sarah E. Hamilton THIS PERSON | 21 | Daughter | Thread Mill | Massachusetts |
| 68 | Mary C. Hamilton | 20 | Daughter | Thread Mill | Massachusetts |
| 69 | John M. Hamilton | 17 | Son | — | Massachusetts |
| 70 | Ellen A. Hamilton | 14 | Daughter | — | Massachusetts |
| 71 | James A. Mclean | 71 | Head | Pw | Northern Ireland |
| 72 | Edith M. Mclean | 48 | Wife | — | Rhode Island |
| 73 | Raymond J. Mclean | 17 | Son | — | Massachusetts |
| 74 | Beverly E. Mclean | 16 | Daughter | — | Massachusetts |
| 75 | Helen G. Tebeau | 58 | Lodger | Woolen Mill | Massachusetts |
| 76 | John A. Devoe | 39 | Head | Thread Mill | Massachusetts |
| 77 | Marguerite V. Devoe | 38 | Wife | — | Massachusetts |
| 78 | Evelyn M. Devoe | 15 | Daughter | — | Massachusetts |
| 79 | Thomas F. Frazier | 68 | Father-in-law | — | Massachusetts |
| 80 | Evelyn T. Frazier | 58 | Mother-in-law | — | Connecticut |
Pedigree Summary
Sarah + 4 siblings
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)