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Julia Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Julia Smith across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & James — first a daughter (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Female
Daughter
Born: England
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Smith |
| Given Name | Julia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | England |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 2391 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Teacher |
| Township / Ward | Chicago |
| Est. Birth Year | ~1901 |
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 Julia | Age | Birth yr |
|---|---|---|---|---|
| Julia Smith | Daughter | — | 39 | ~1901 |
| Thomas Smith | Head | — | 67 | ~1873 |
| Elena Von Hebe | Other | — | 55 | ~1885 |
| James Smith | Son | — | 30 | ~1910 |
Census Appearances
1920
Cook, Illinois
Daughter, age 19
Cook, Illinois · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Julia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Cook, Illinois
Daughter, age 29
Cook, Illinois · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Julia G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Cook-County, Illinois
Daughter, age 39
Cook-County, Illinois · implied b. ~1901 — 4 household members
| Surname | Smith |
| Given Name | Julia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | England |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 2391 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Julia Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Smith (~0.92 confidence) and father James Smith (~0.92 confidence) and mother Julia Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Father
James Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Julia Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Julia Smith
Daughter · 1940 · age 39 · b. ~1901 · Illinois
★ You are viewing this record
Sibling
James Smith
Sibling · 1940 · age 30
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00958-00444)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine Mahon | 37 | Sister | Stenographer | Illinois |
| 2 | Earl Allen | 50 | Head | Clerk | Illinois |
| 3 | Clara Allen | 52 | Wife | — | Illinois |
| 4 | Dorothy Allen | 19 | Sister | Cellophane Worker | Illinois |
| 5 | May Moran | 45 | Head | Secretary | Illinois |
| 6 | Marion Moran | 21 | Daughter | Office Clerk | Illinois |
| 7 | Robert Moran | 19 | Son | — | Illinois |
| 8 | Richard Moran | 17 | Son | — | Illinois |
| 9 | Patricia Moran | 14 | Daughter | — | Illinois |
| 10 | Catherine Moran | 39 | Sister | Clerk | Illinois |
| 11 | Margaret Moran | 42 | Sister | — | Illinois |
| 12 | Walter Moran | 48 | Brother | Cattleman | Illinois |
| 13 | Frank Cassata | 31 | Head | Order Filler | Illinois |
| 14 | Raymonda Cassata | 27 | Wife | Machine Operator | Illinois |
| 15 | David C. Parks | 50 | Head | Store Keeper | Arkansas |
| 16 | Nellie Parks | 48 | Wife | — | Kentucky |
| 17 | David Parks | 16 | Son | — | Oklahoma |
| 18 | Ruth E. Parks | 13 | Daughter | — | Oklahoma |
| 19 | Oscar Boehm | 35 | Head | Steamfitter | Illinois |
| 20 | Laura Boehm | 34 | Wife | — | Illinois |
| 21 | Loraine Boehm | 3 | Daughter | — | Illinois |
| 22 | Oscar Jr. Boehm | 2 | Son | — | Illinois |
| 23 | Fredericka Boehm | 70 | Mother | — | Germany |
| 24 | Thomas F. Smith | 67 | Head | — | England |
| 25 | Julia Smith THIS PERSON | 39 | Daughter | Teacher | England |
| 26 | James Smith | 30 | Son | Time Keeper | England |
| 27 | Elena Von Hebe | 55 | Aunt | — | England |
| 28 | Otto Huber | 53 | Head | Salesman | Illinois |
| 29 | Emma Huber | 53 | Wife | — | Illinois |
| 30 | Anna Kane | 32 | Daughter | — | Illinois |
| 31 | William Kelly | 56 | Head | Barber | Michigan |
| 32 | Grace Kelly | 49 | Wife | — | Illinois |
| 33 | Florence Kelly | 28 | Daughter | Typist | Illinois |
| 34 | William Jr. Kelly | 18 | Son | Office Work | Illinois |
| 35 | Anna Reiss | 65 | Mother | — | New York |
| 36 | C. Barrett | 46 | Head | Creditman | Illinois |
| 37 | Esther Barrett | 48 | Wife | — | Illinois |
| 38 | Lorain Barrett | 21 | Daughter | Beauty Operator | Illinois |
| 39 | Lois Barrett | 21 | Daughter | Clerk | Illinois |
| 40 | Fred Shimp | 54 | Head | Glazier | Illinois |
Pedigree Summary
Julia + 1 sibling
Gen 1 · 3 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)