AS
Allen Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Allen Smith across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Bertha — first a son (b.~1905), then head of a 2-person household.
Age 35
b. ~1905
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1905 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Allen | Age | Birth yr |
|---|---|---|---|---|
| Bertha Smith | Head | — | 61 | ~1879 |
| Allen Smith | Son | — | 35 | ~1905 |
Census Appearances
1920
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Allen E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Canada |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Cook, Illinois
Son, age 25
Cook, Illinois · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Pennsylvania |
| Occupation | office clerk |
| Industry | Ship yards |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cook-County, Illinois
Son, age 35
Cook-County, Illinois · implied b. ~1905 — 2 household members
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Allen Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Smith (~0.92 confidence) and mother Bertha Smith (~0.92 confidence) and father Charles Smith (~0.92 confidence) and mother Bertha Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Bertha Smith
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Charles Smith
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Bertha Smith
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Allen Smith
Son · 1940 · age 35 · b. ~1905 · Illinois
★ You are viewing this record
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-t0627-00942-00539)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa Mrs Belmore | 47 | Wife | Sales Lady | Michigan |
| 42 | Alfred Gerhardt | 41 | Head | Meat Cutter | Illinois |
| 43 | Helen Mrs Gerhardt | 35 | Wife | — | Illinois |
| 44 | Emil Kaehn | 37 | Head | Tank Fabricator | Illinois |
| 45 | Ruth Mrs Kaehn | 35 | Wife | — | Illinois |
| 46 | Richard Kaehn | 14 | Son | — | Illinois |
| 47 | Kenneth Kaehn | 9 | Son | — | Illinois |
| 48 | Paul Sefcik | 57 | Head | Steel Worker | Austria |
| 49 | Elizabeth Mrs Sefcik | 53 | Wife | — | Austria |
| 50 | Marie Sefcik | 26 | Daughter | New Worker | Illinois |
| 51 | John Janoss | 35 | Head | Stove Man | Illinois |
| 52 | Laverne Mrs Janoss | 25 | Wife | — | Illinois |
| 53 | Susan Mrs Tobias | 52 | Head | — | Germany |
| 54 | Theodore Tobias | 29 | Son | — | Illinois |
| 55 | George Tobias | 22 | Son | New Worker | Illinois |
| 56 | Henry Tobias | 19 | Son | Porter | Illinois |
| 57 | John Tobias | 11 | Son | — | Illinois |
| 58 | George Hand | 30 | Head | Technician | Illinois |
| 59 | Lillian Mrs Hand | 30 | Wife | — | New York |
| 60 | Emil Starevich | 25 | Head | Millwright | Indiana |
| 61 | Rosa Mrs Starevich | 20 | Wife | — | Illinois |
| 62 | Beverly Starevich | 3 | Daughter | — | Illinois |
| 63 | George Starevich | 1 | Son | — | Illinois |
| 64 | Bertha Mrs Smith | 61 | Head | — | Pennsylvania |
| 65 | Allen Smith THIS PERSON | 35 | Son | — | Pennsylvania |
| 66 | Ending | None | Work | — | Beginning |
| 67 | Catherine Mrs Keane | 57 | Head | — | Irish Free State |
| 68 | Michael Keane | 16 | Son | New Worker | Illinois |
| 69 | James Keane | 13 | Son | — | Illinois |
| 70 | Minna Mrs Doerr | 84 | Head | — | Wisconsin |
| 71 | George Doerr | 60 | Son | — | Illinois |
| 72 | Alice Mrs Yungling | 47 | Daughter | — | Illinois |
| 73 | William F Marsh | 40 | Head | Freight Conductor | Wisconsin |
| 74 | Harriett Mrs Marsh | 42 | Wife | Book Keeper | Illinois |
| 75 | Augusta Mrs Andersen | 74 | Mother-in-law | — | Germany |
| 76 | Violet H Sterling | 23 | Niece | Book Keeper | Indiana |
| 77 | Elmer Kloffman | 40 | Head | Receiving Clerk | Nebraska |
| 78 | Mildred Mrs Kloffman | 35 | Wife | — | Illinois |
| 79 | Richard Kloffman | 13 | Son | — | Illinois |
| 80 | William Kloffman | 11 | Son | — | Illinois |
Pedigree Summary
Allen
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)