RR
Robert Richardson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Richardson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & Frank — first a son (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Richardson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Salesman |
| Industry | Automobile Industry |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 798 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Chicago |
| Est. Birth Year | ~1911 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Frank Richardson | Head | — | 52 | ~1888 |
| Mary Richardson | Other | — | 78 | ~1862 |
| Estelle Richardson | Other | — | 50 | ~1890 |
| Robert Richardson | Son | — | 29 | ~1911 |
| Mabel Richardson | Spouse | — | 50 | ~1890 |
Census Appearances
1910
Cook, Illinois
Other, age
Cook, Illinois · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Robert F |
| Relationship to Head | Grandchild |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Iowa |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 20
Cook, Illinois · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 29
Cook-County, Illinois · implied b. ~1911 — 5 household members
| Surname | Richardson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Salesman |
| Industry | Automobile Industry |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 798 |
| Highest Grade | H 2 |
| 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 Robert Richardson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Richardson (~0.92 confidence) and father Frank Richardson (~0.92 confidence) and mother Ethel Richardson (~0.92 confidence) and father Frank Richardson (~0.92 confidence) and mother Mabel Richardson (~0.92 confidence) and mother Alice Richardson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Richardson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Frank Richardson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ethel Richardson
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Frank Richardson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mabel Richardson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Alice Richardson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Richardson
Son · 1940 · age 29 · b. ~1911 · 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-t0627-01021-00857)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine M Swanson | 24 | Daughter | — | Illinois |
| 42 | John E Swanson | 1 | Grandson | — | Illinois |
| 43 | William Lynch | 60 | Head | Salesman | Wisconsin |
| 44 | Catherine C Lynch | 53 | Wife | — | Wisconsin |
| 45 | William Joseph Lynch | 13 | Son | — | Illinois |
| 46 | Hazel Tonkin | 43 | Lodger | Clerk | Wisconsin |
| 47 | Ethel E Callender | 51 | Head | Switchboard Operator | Illinois |
| 48 | Gladys Marie Callender | 38 | Sister | Switchboard Operator | Illinois |
| 49 | Christina Callender | 79 | Mother | — | Sweden |
| 50 | Howard J Hanreddy | 43 | Head | Clerk | Illinois |
| 51 | Eleanor Hanreddy | 36 | Wife | — | Illinois |
| 52 | Ida Johnson | 72 | Head | — | Sweden |
| 53 | Florence Hardy | 45 | Lodger | Salesclerk | Ohio |
| 54 | Opal Everett | 61 | Lodger | — | Texas |
| 55 | Frank W Richardson | 52 | Head | Machinist | Michigan |
| 56 | Mabel Richardson | 50 | Wife | Clerk | Iowa |
| 57 | Robert Richardson THIS PERSON | 29 | Son | Salesman | Illinois |
| 58 | Mary E Richardson | 78 | Mother | — | Ireland |
| 59 | Estelle Richardson | 50 | Sister | Secretary | Michigan |
| 60 | Robert Ryan | 42 | Head | Electrician | Illinois |
| 61 | Alvera Ryan | 38 | Wife | — | New York |
| 62 | Robert Ryan | 19 | Son | Clerk | Illinois |
| 63 | Charlotte Ryan | 16 | Daughter | — | Illinois |
| 64 | Jessie Benson | 50 | Head | Typist | Illinois |
| 65 | Herbert Benson | 46 | Brother | Order Clerk | Illinois |
| 66 | Minnie Bengtson | 82 | Mother | — | Sweden |
| 67 | John Hamilton | 53 | Head | Attorney | Nebraska |
| 68 | Emily Hamilton | 52 | Wife | — | Iowa |
| 69 | David T Chindbloom | 54 | Head | Receiving Clerk | Illinois |
| 70 | Alice Chindbloom | 53 | Wife | — | Illinois |
| 71 | Martin Chindbloom | 20 | Son | File Clerk | Illinois |
| 72 | Warren Chindbloom | 15 | Son | — | Illinois |
| 73 | Esther Chindbloom | 15 | Daughter | — | Illinois |
| 74 | Ruth Chindbloom | 15 | Daughter | — | Illinois |
| 75 | William Curley | 51 | Head | Clerk | Illinois |
| 76 | Lillian A Curley | 51 | Wife | — | Illinois |
| 77 | Jeannette Curley | 23 | Daughter | Secretary | Illinois |
| 78 | Alice Hogan | 64 | Head | — | Illinois |
| 79 | Alice Hogan | 28 | Daughter | Stenographer | Utah |
| 80 | Marvin Hogan | 27 | Son | — | Utah |
Pedigree Summary
Robert
Gen 1 · 6 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)