RA
Roy Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Roy Anderson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Amanda & John — first a son (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Anderson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rockford |
| Est. Birth Year | ~1900 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Mildred Anderson | Daughter | — | 46 | ~1894 |
| John Anderson | Head | — | 77 | ~1863 |
| Oscar Anderson | Son | — | 48 | ~1892 |
| Roy Anderson | Son | — | 40 | ~1900 |
| Amanda Anderson | Spouse | — | 77 | ~1863 |
Census Appearances
1920
Winnebago, Illinois
Son, age 19
Winnebago, Illinois · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ray |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Son, age 29
Winnebago, Illinois · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ray S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Milkman |
| Industry | Dairy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 40
Winnebago-County, Illinois · implied b. ~1900 — 5 household members
| Surname | Anderson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Highest Grade | H 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 Roy Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Amanda Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence) and father John Anderson (~0.92 confidence) and mother Agusta Anderson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Amanda Anderson
b. ~1863
Source mother
● Household
· direct · ~0.92
Father
John Anderson
b. ~1863
Source father
● Household
· direct · ~0.92
Father
John Anderson
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Agusta Anderson
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Anderson
Son · 1940 · age 40 · b. ~1900 · Illinois
★ You are viewing this record
Sibling
Oscar Anderson
Sibling · 1940 · age 48
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Anderson
Sibling · 1940 · age 46
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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00913-00032)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Langkamp | 11 | Daughter | — | Iowa |
| 42 | Donald Langkamp | 8 | Son | — | Iowa |
| 43 | William Langkamp | 7 | Son | — | Iowa |
| 44 | Robert Langkamp | 4 | Son | — | Iowa |
| 45 | John Anderson | 77 | Head | — | Sweden |
| 46 | Amanda Anderson | 77 | Wife | — | Sweden |
| 47 | Oscar Anderson | 48 | Son | — | Illinois |
| 48 | Mildred Anderson | 46 | Daughter | Saleslady | Illinois |
| 49 | Roy Anderson THIS PERSON | 40 | Son | — | Illinois |
| 50 | Jennie Abell | 78 | Head | — | Illinois |
| 51 | Belle Abell | 52 | Daughter | Stenographer | Illinois |
| 52 | Robert Combs | 22 | Head | Mechanic | Illinois |
| 53 | Edna Combs | 19 | Wife | — | Iowa |
| 54 | Robert Combs | 2 | Son | — | Illinois |
| 55 | Paul Combs | 0 | Son | — | Illinois |
| 56 | Elmer Reason | 47 | Head | Foreman | Wisconsin |
| 57 | Alma Reason | 47 | Wife | — | Illinois |
| 58 | Ross Sweeney | 52 | Head | Machinist | Iowa |
| 59 | Emma Sweeney | 46 | Wife | — | Illinois |
| 60 | Roberta Sweeney | 16 | Daughter | — | Illinois |
| 61 | Harry Montanye | 65 | Head | Caretaker | Indiana |
| 62 | Agnes Montanye | 61 | Wife | — | Ohio |
| 63 | George Hildebrandt | 40 | Head | Laborer | Illinois |
| 64 | Pearl Hildebrandt | 34 | Wife | — | California |
| 65 | Grace Hildebrandt | 11 | Daughter | — | Illinois |
| 66 | Robert Hildebrandt | 6 | Son | — | Illinois |
| 67 | Darlene Belleau | 48 | Head | — | Illinois |
| 68 | Clark Whedon | 20 | Son | Laborer | Illinois |
| 69 | Donald Belleau | 15 | Son | — | Illinois |
| 70 | Jessie Belleau | 13 | Daughter | — | Illinois |
| 71 | Frank Bardin | 27 | Head | Truck Driver | Illinois |
| 72 | Arlene Bardin | 22 | Wife | Seamstress | Wisconsin |
| 73 | Sarah Noelzel | 42 | Mother in law | Seamstress | Wisconsin |
| 74 | Hugh Gulling | 51 | Lodger | Auditor | Pennsylvania |
| 75 | Edwin Smith | 56 | Head | Carpenter | Illinois |
| 76 | Flossie Smith | 53 | Wife | — | New York |
| 77 | Edwin Smith | 29 | Son | Carpenter | Illinois |
| 78 | Arthur Smith | 24 | Son | — | Wisconsin |
| 79 | June Smith | 22 | Daughter | Clerk | Wisconsin |
| 80 | Grant Smith | 20 | Son | — | Illinois |
Related Census Records
Pedigree Summary
Roy + 2 siblings
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)