GS
Gertrude Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Gertrude Smith across the 1910, 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & Mary — first a daughter (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | SMITH |
| Given Name | GERTRUDE |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | CHECKING CLERK |
| Industry | INSURANCE |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | Hs 3 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Checking Clerk |
| Township / Ward | Boston City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Loretta Smith | Daughter | — | 37 | ~1903 |
| Gertrude Smith | Daughter | — | 30 | ~1910 |
| Thomas Smith | Head | — | 75 | ~1865 |
| William Smith | Son | — | 45 | ~1895 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age 1
Suffolk, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Daughter, age 10
Suffolk, Massachusetts · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gertrude A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| 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
Suffolk, Massachusetts
Daughter, age 20
Suffolk, Massachusetts · implied b. ~1910 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gertrude A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Stenographer |
| Industry | Paper |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 30
Suffolk-County, Massachusetts · implied b. ~1910 — 4 household members
| Surname | SMITH |
| Given Name | GERTRUDE |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | CHECKING CLERK |
| Industry | INSURANCE |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | Hs 3 |
| 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 Gertrude Smith across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Smith (~0.82 confidence) and mother Mary Smith (~0.82 confidence) and father Thomas Smith (~0.92 confidence) and father James Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Elizabeth Smith (~0.92 confidence) and mother Annie Smith (~0.92 confidence). The pedigree spans 2 generations with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Father
William Smith
b. ~1854
Source mother>father
● Household
· direct · ~0.82
Mother
Mary Smith
b. ~1857
Source mother>mother
● Household
· direct · ~0.82
Father
Thomas Smith
b. ~1865
Source father
● Household
· direct · ~0.92
Father
James Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Smith
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Annie Smith
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Gertrude Smith
Daughter · 1940 · age 30 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
William Smith
Sibling · 1940 · age 45
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Smith
Sibling · 1940 · age 37
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-01659-00716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Brennan | 27 | Wife | — | Massachusetts |
| 42 | Joseph Brennan | 2 | Son | — | Massachusetts |
| 43 | Neil Brennan | 1 | Son | — | Massachusetts |
| 44 | Charles Thompson | 63 | Head | Bartender | Massachusetts |
| 45 | Margaret Thompson | 59 | Wife | — | Massachusetts |
| 46 | Mary E Thompson | 30 | Daughter | Teacher | Massachusetts |
| 47 | Winifred A Thompson | 27 | Daughter | Teacher | Massachusetts |
| 48 | Marguerite Thompson | 21 | Daughter | Typist | Massachusetts |
| 49 | Charlotte Thompson | 21 | Daughter | — | Massachusetts |
| 50 | Annie Collins | 63 | Head | — | Northern Ireland |
| 51 | Patrick Collins | 34 | Son | Laborer | Massachusetts |
| 52 | James Collins | 30 | Son | Clerk | Massachusetts |
| 53 | Mary Collins | 32 | Daughter | Bookkeeper | Massachusetts |
| 54 | Thomas Smith | 75 | Head | — | Northern Ireland |
| 55 | William Smith | 45 | Son | — | Massachusetts |
| 56 | Loretta Smith | 37 | Daughter | Operator | Massachusetts |
| 57 | Gertrude Smith THIS PERSON | 30 | Daughter | Checking Clerk | Massachusetts |
| 58 | Mary Halvey | 50 | Head | Packer | Massachusetts |
| 59 | Marguerite Halvey | 23 | Daughter | Candy-Tier | Rhode Island |
| 60 | John Halvey | 13 | Son | — | Massachusetts |
| 61 | Margaret Kelley | 75 | Mother | — | England |
| 62 | James Burgess | 34 | Head | Laborer | Massachusetts |
| 63 | Alice Burgess | 33 | Wife | — | Massachusetts |
| 64 | Ellen Mccarthy | 70 | Head | — | Eire |
| 65 | William J Mccarthy | 42 | Son | — | Massachusetts |
| 66 | Joseph Mccarthy | 33 | Son | Laborer | Massachusetts |
| 67 | Margaret Mccarthy | 29 | Daughter | — | Massachusetts |
| 68 | Alfred Kirby | 24 | Head | Mechanic | Massachusetts |
| 69 | Emily Kirby | 20 | Wife | — | Massachusetts |
| 70 | Barbara Kirby | 1 | Daughter | — | Massachusetts |
Pedigree Summary
Gertrude + 2 siblings
Gen 1 · 5 parents
~0.92
Gen 2 · 2 grandparents
~0.82
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)