RA
Roy Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Roy Anderson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Augusta & Richard — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Anderson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Machine Operator |
| Industry | Wholesale Supplies |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 318 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Machine Operator |
| Township / Ward | Chicago |
| Est. Birth Year | ~1912 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Clarence Anderson | Head | — | 52 | ~1888 |
| Fred Anderson | Son | — | 23 | ~1917 |
| Roy Anderson | Son | — | 28 | ~1912 |
| Bessie Anderson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Cook, Illinois
Son, age 7
Cook, Illinois · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Roy H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 18
Cook, Illinois · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Salesman |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 28
Cook-County, Illinois · implied b. ~1912 — 4 household members
| Surname | Anderson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Machine Operator |
| Industry | Wholesale Supplies |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 318 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Roy Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Augusta Anderson (~0.92 confidence) and father Richard Anderson (~0.92 confidence) and father Clarence Anderson (~0.92 confidence) and mother Blanche Anderson (~0.92 confidence) and mother Bessie Anderson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Augusta Anderson
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Richard Anderson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Clarence Anderson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Blanche Anderson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Bessie Anderson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Anderson
Son · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Fred Anderson
Sibling · 1940 · age 23
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
27 people indexed on this census page (nara:1940:m-t0627-00995-00712)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | L. Son Russell | 32 | Son | Commercial Business | Illinois |
| 42 | Grandson Russell | None | M | — | — |
| 43 | Thomas Rich | 68 | Head | Janitor | Canada-English |
| 44 | Louise Rich | 62 | Wife | — | Illinois |
| 45 | William T. Rich | 39 | Head | Banking Clerk | Illinois |
| 46 | Helen Rich | 36 | Wife | Stenographer | Illinois |
| 47 | William Rich | 5 | Son | — | Illinois |
| 48 | Anna La Suer | 69 | Mother-in-law | — | Illinois |
| 49 | Arthur Anderson | 49 | Head | Accountant | Minnesota |
| 50 | Margaret Anderson | 49 | Wife | Teacher | Illinois |
| 51 | Arthur Anderson | 26 | Son | Teacher | Illinois |
| 52 | Anne (Ab) Anderson | 19 | Daughter | — | Illinois |
| 53 | Charles Anderson | 57 | Brother | — | Illinois |
| 54 | David Julien | 51 | Head | Assistant Superintendent | Illinois |
| 55 | Emma Julien | 47 | Wife | — | Illinois |
| 56 | Steve Wielhorz | 55 | Servant | Janitor | Poland |
| 57 | Edward Kief | 52 | Head | Truck Driver | Illinois |
| 58 | Mabel Kief | 52 | Wife | — | Wisconsin |
| 59 | Orrin Kief | 22 | Son | Apprentice Butcher | Illinois |
| 60 | Anne Mccluskey | 71 | Head | — | Illinois |
| 61 | William Logan | 52 | Head | Building Manager | Northern Ireland |
| 62 | Rachel Logan | 50 | Wife | — | Illinois |
| 63 | Gretchen Logan | 27 | Daughter | — | Illinois |
| 64 | Clarence Anderson | 52 | Head | Machinist | Illinois |
| 65 | Bessie Anderson | 47 | Wife | — | Illinois |
| 66 | Roy Anderson THIS PERSON | 28 | Son | Machine Operator | Illinois |
| 67 | Fred Anderson | 23 | Son | Stock Boy | Illinois |
Pedigree Summary
Roy + 1 sibling
Gen 1 · 5 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)