HS
Helen Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Helen Smith across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Albert & Mary — first a daughter (b.~1907), then head of a 6-person household.
Age 33
b. ~1907
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Smith |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Clerk |
| Industry | City Treasurer |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 669 |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1907 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Alice Smith | Daughter | — | 33 | ~1907 |
| Mary Smith | Daughter | — | 25 | ~1915 |
| Helen Smith | Daughter | — | 33 | ~1907 |
| Mary Smith | Head | — | 63 | ~1877 |
| Alice Quinn | Other | — | 57 | ~1883 |
| Elizabeth Quinn | Other | — | 67 | ~1873 |
Census Appearances
1920
Worcester, Massachusetts
Daughter, age 13
Worcester, Massachusetts · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Daughter, age 23
Worcester, Massachusetts · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Stenographer |
| Industry | City Hall |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Daughter, age 33
Worcester-County, Massachusetts · implied b. ~1907 — 6 household members
| Surname | Smith |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Occupation | Clerk |
| Industry | City Treasurer |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 669 |
| Highest Grade | C-1 |
| 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 Helen Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence) and mother Hazel Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Smith
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Hazel Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Smith
Daughter · 1940 · age 33 · b. ~1907 · Massachusetts
★ You are viewing this record
Sibling
Mary Smith
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Smith
Sibling · 1940 · age 33
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-t0627-01719-00070)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jane Prescott | 18 | Maid | Maid | Massachusetts |
| 2 | — | None | — | — | — |
| 3 | Walter P. Nadmeau | 61 | Head | — | Massachusetts |
| 4 | Alice M. Nadmeau | 61 | Wife | — | Massachusetts |
| 5 | Alice V. Nadmeau | 29 | Daughter | Teacher | Massachusetts |
| 6 | Elizabeth H. Nadmeau | 26 | Daughter | Clerk | Massachusetts |
| 7 | Richard R. Nadmeau | 24 | Son | Clerk | Massachusetts |
| 8 | Howard R. Hubbs | 5 | Son | Title Examiner | Massachusetts |
| 9 | Ella D. Storey | 63 | Head | — | Massachusetts |
| 10 | Irving F. Storey | 36 | Son | Teacher | Massachusetts |
| 11 | Florence J. Frost | 30 | Maid | Maid | Massachusetts |
| 12 | Sarah E. Tilley | 60 | Roomer | — | Massachusetts |
| 13 | Margaret G. Kittredge | 75 | Head | — | Massachusetts |
| 14 | Margaret Kittredge | 43 | Daughter | Manager | Massachusetts |
| 15 | Francis J. Kittredge | 38 | Son | Asst. Treas. | Massachusetts |
| 16 | Herman L. Mattern | 37 | Head | Physician | New York |
| 17 | Catherine P. Mattern | 36 | Wife | — | Massachusetts |
| 18 | H. Richard Mattern | 12 | Son | — | Massachusetts |
| 19 | Donald F. Mattern | 11 | Son | — | Massachusetts |
| 20 | Walter E. Mattern | 2 | Son | — | Massachusetts |
| 21 | James A. Tremblay | 53 | Head | Dentist | Massachusetts |
| 22 | Agnes M. Tremblay | 55 | Sister | — | Massachusetts |
| 23 | Frank G. Ford | 49 | Head | Proprietor | Connecticut |
| 24 | Agnes C. Ford | 44 | Wife | — | New York |
| 25 | Francis W. Ford | 23 | Son | Repairman | Connecticut |
| 26 | Margaret C. Ford | 21 | Daughter | Clerk | Connecticut |
| 27 | Mary J. Smith | 63 | Head | — | Massachusetts |
| 28 | Alice J. Smith | 33 | Daughter | — | Massachusetts |
| 29 | Helen M. Smith THIS PERSON | 33 | Daughter | Clerk | Massachusetts |
| 30 | Mary E. Smith | 25 | Daughter | Secretary | Massachusetts |
| 31 | Elizabeth G. Quinn | 67 | Sister | Operator | Massachusetts |
| 32 | Alice J. Quinn | 57 | Sister | Bookkeeper | Massachusetts |
| 33 | Charles B. Strome | 41 | Head | Alumni Secretary | Pennsylvania |
| 34 | Ann G. Strome | 38 | Wife | — | Pennsylvania |
| 35 | Charles B. Jr. Strome | 12 | Son | — | Massachusetts |
| 36 | Nancy Strome | 10 | Daughter | — | Massachusetts |
| 37 | Horace W. Putnam | 83 | Head | — | Massachusetts |
| 38 | Eliza Barnes | 65 | Housekeeper | Housekeeper | Massachusetts |
| 39 | William A. Farrell | 40 | Head | Musician | Massachusetts |
| 40 | Agnes Farrell | 76 | Aunt | — | England |
Pedigree Summary
Helen + 2 siblings
Gen 1 · 4 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)