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Lloyd Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Lloyd Smith across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Smith |
| Given Name | Lloyd |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laundry |
| Industry | Laundry |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laundry |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lloyd | Age | Birth yr |
|---|---|---|---|---|
| Mercedes Smith | Daughter | — | 26 | ~1914 |
| Lloyd Smith | Head | — | 49 | ~1891 |
| Robert Herrmann | Other | — | 20 | ~1920 |
| James Christoffersen | Other | — | 14 | ~1926 |
| Mercedes Smith | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Cook, Illinois
Head, age 29
Cook, Illinois · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lloyd A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Salesman |
| Industry | Tea + Coffee Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | indiana |
1930
Cook, Illinois
Head, age 40
Cook, Illinois · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Loyd |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Painter |
| Industry | House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20.00 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Cook-County, Illinois
Head, age 49
Cook-County, Illinois · implied b. ~1891 — 5 household members
| Surname | Smith |
| Given Name | Lloyd |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Laundry |
| Industry | Laundry |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Lloyd Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lloyd Smith
Head · 1940 · age 49 · b. ~1891 · 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
38 people indexed on this census page (nara:1940:m-t0627-00936-00299)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | Lloyd Smith THIS PERSON | 49 | Head | Laundry | Indiana |
| 43 | Mercedes Smith | 49 | Wife | — | Illinois |
| 44 | Mercedes L. Smith | 26 | Daughter | Office Work | Illinois |
| 45 | Robert Herrmann | 20 | Nephew | Clerk | Illinois |
| 46 | James Christoffersen | 14 | Nephew | — | Illinois |
| 47 | Andrew Tait | 64 | Head | Tool Temperer | England |
| 48 | Rachel Tait | 62 | Wife | — | England |
| 50 | Juliane Scripp | 33 | Head | Public Library Clerk | Illinois |
| 51 | Evelyn Scripp | 34 | Wife | — | Illinois |
| 52 | George Scripp | 3 | Son | — | Illinois |
| 53 | Rosalie Scripp | 1 | Daughter | — | Illinois |
| 54 | Ida D. Sonneckalb | 49 | Head | Secretary | New Jersey |
| 55 | Ida Sonneckalb | 80 | Mother | — | Germany |
| 56 | Lloyd Wolf | 26 | Head | Auditor | Ohio |
| 57 | Helen Wolf | 24 | Wife | — | Ohio |
| 58 | David Border | 30 | Head | Teacher | Illinois |
| 59 | Bernice Border | 27 | Wife | Secretary | Oklahoma |
| 60 | Charles Caron | 26 | Head | Machinist | Illinois |
| 61 | Leona Caron | 26 | Wife | — | Illinois |
| 62 | Elvin Hughes | 39 | Head | Fireman | Illinois |
| 63 | Rosalie Hughes | 25 | Wife | — | North Carolina |
| 64 | Patricia Hughes | 2 | Daughter | — | Illinois |
| 65 | Alice Hughes | 0 | Daughter | — | Illinois |
| 66 | John Czajkowski | 36 | Head | Janitor | Wisconsin |
| 67 | Jean Czajkowski | 33 | Wife | — | Illinois |
| 68 | Alfred Czajkowski | 11 | Son | — | Illinois |
| 69 | Gerald Czajkowski | 1 | Son | — | Illinois |
| 70 | Andrew Sherky | 40 | Head | Hardware | Illinois |
| 71 | Leona Sherky | 50 | Wife | — | Illinois |
| 72 | Joseph Kozo | 45 | Brother in law | Salesman | Illinois |
| 73 | Paul Sladeck | 61 | Head | Foreman | Germany |
| 74 | Ida Sladeck | 62 | Wife | — | Germany |
| 75 | John Mcmahon | 24 | Head | Mason Helper | New York |
| 76 | Victoria Mcmahon | 28 | Wife | — | Illinois |
| 77 | John Jr Mcmahon | 2 | Son | — | Illinois |
| 78 | Robert Mcmahon | 0 | Son | — | Illinois |
| 79 | James Ball | 53 | Head | Mechanic | Illinois |
| 80 | Elsie Ball | 45 | Wife | — | Illinois |
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)