FS
Frank Simpson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Simpson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Mary — first a head (b.~1892), then head of a 7-person household.
Age 48
b. ~1892
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Simpson |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | City of Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Time keeper |
| Industry | City street |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Time Keeper |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1892 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Francis Simpson | Daughter | — | 14 | ~1926 |
| Mamie Simpson | Other | — | 68 | ~1872 |
| Frank Simpson | Head | — | 48 | ~1892 |
| Rosemary Simpson | Daughter | — | 16 | ~1924 |
| Jane Simpson | Daughter | — | 5 | ~1935 |
| Margaret Simpson | Daughter | — | 12 | ~1928 |
| Mariella Simpson | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Cook, Illinois
Son, age 27
Cook, Illinois · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Germany |
| Occupation | Credit Clerk |
| Industry | Mail Order House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 38
Cook, Illinois · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Frank A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Bremen Germany |
| Occupation | Credit man |
| Industry | Radio Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Veteran | Yes WW |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 48
Cook-County, Illinois · implied b. ~1892 — 7 household members
| Surname | Simpson |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | City of Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Time keeper |
| Industry | City street |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Frank Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Simpson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Simpson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Simpson
Head · 1940 · age 48 · b. ~1892 · 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-t0627-01002-00800)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert, Jr Werling | 37 | Son | Painter | Illinois |
| 2 | Michael Heinsch | 41 | Head | Fireman | Illinois |
| 3 | Mary Heinsch | 36 | Wife | — | Illinois |
| 4 | Rosemary Heinsch | 6 | Daughter | — | Illinois |
| 5 | Patricia Heinsch | 4 | Daughter | — | Illinois |
| 6 | Fred Hempf | 38 | Head | Fireman | Illinois |
| 7 | Helen Hempf | 36 | Wife | — | Illinois |
| 8 | Loraine Hempf | 14 | Daughter | — | Illinois |
| 9 | Donald Hempf | 10 | Son | — | Illinois |
| 10 | Ida Matt | 64 | Head | — | Indiana |
| 11 | Raymond Matt | 33 | Son | Accountant | Illinois |
| 12 | Ester Matt | 33 | Daughter-in-law | — | Illinois |
| 13 | Raymond Matt | 1 | Grandson | — | Illinois |
| 14 | Theoville Matzner | 36 | Head | Electrical Engineer | Indiana |
| 15 | Rose Matzner | 35 | Wife | — | Austria |
| 16 | Frederick Matzner | 10 | Son | — | Illinois |
| 17 | Rosemary Matzner | 9 | Daughter | — | Iowa |
| 18 | Charles Guthrie | 72 | Head | — | Germany |
| 19 | Fred Lange | 53 | Son-in-law | Station Examiner | Illinois |
| 20 | Louise Lange | 50 | Daughter | — | Illinois |
| 21 | Dorothy Lange | 21 | Daughter | Bookkeeper | Illinois |
| 22 | Julius Winter | 48 | Head | — | Germany |
| 23 | Anna Winter | 27 | Wife | Machine Operator | Germany |
| 24 | Elsie Winter | 18 | Daughter | Sales Clerk | Germany |
| 25 | Lottie Winter | 8 | Daughter | — | Illinois |
| 26 | Herman Albrecht | 48 | Lodger | Proprietor | Hungary |
| 27 | Steve Betzeler | 50 | Head | Proprietor | Greece |
| 28 | Peggy Betzeler | 39 | Wife | — | Greece |
| 29 | Anastasia Betzeler | 16 | Son | — | Illinois |
| 30 | Angelo Betzeler | 13 | Daughter | — | Illinois |
| 31 | James Betzeler | 11 | Son | — | Illinois |
| 32 | Elaine Betzeler | 6 | Daughter | — | Illinois |
| 33 | Frank Simpson THIS PERSON | 48 | Head | Time Keeper | Illinois |
| 34 | Mariella Simpson | 41 | Wife | — | Illinois |
| 35 | Rosemary Simpson | 16 | Daughter | — | Illinois |
| 36 | Francis Simpson | 14 | Daughter | — | Illinois |
| 37 | Margaret Simpson | 12 | Daughter | — | California |
| 38 | Jane Simpson | 5 | Daughter | — | Illinois |
| 39 | Mamie Simpson | 68 | Mother | — | Germany |
| 40 | Peter Raden | 73 | Head | — | Illinois |
Pedigree Summary
Frank
Gen 1 · 1 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)