AN
Arthur Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Arthur Nelson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Henry & Henry — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Nelson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Henderson Township |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farming |
| Township / Ward | Henderson Township |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Mildred Nelson | Daughter | — | 14 | ~1926 |
| Mary Nelson | Daughter | — | 18 | ~1922 |
| Henry Nelson | Head | — | 60 | ~1880 |
| Arthur Nelson | Son | — | 20 | ~1920 |
| Nels Nelson | Son | — | 27 | ~1913 |
| Lillian Nelson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Knox, Illinois
Son, age
Knox, Illinois · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 10
Knox, Illinois · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Arthur R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Son, age 20
Knox-County, Illinois · implied b. ~1920 — 6 household members
| Surname | Nelson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Henderson Township |
| 1935 Residence (County) | Knox |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Arthur Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Nelson (~0.92 confidence) and father Henry Nelson (~0.92 confidence) and mother Lillian Nelson (~0.92 confidence) and mother Leona Nelson (~0.60 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Henry Nelson
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Henry Nelson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lillian Nelson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Leona Nelson
b. ~1916
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Arthur Nelson
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Mildred Nelson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Nelson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nels Nelson
Sibling · 1940 · age 27
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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00827-00029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | W. S. Junk | 74 | Head | Farming | Illinois |
| 42 | Olive Junk | 35 | Daughter | — | Illinois |
| 43 | Helen Junk | 39 | Daughter | — | Illinois |
| 44 | M. A. Richmond | 52 | Head | Farming | Nebraska |
| 45 | Lottie Richmond | 50 | Wife | — | Nebraska |
| 46 | Dale Richmond | 21 | Son | Farm Hand | Nebraska |
| 47 | Leonard Oberlinshier | 18 | Hand | Farm Hand | Nebraska |
| 48 | Conrad Nelson | 30 | Head | Farming | Illinois |
| 49 | Helen Nelson | 27 | Wife | — | Illinois |
| 50 | Shirley Nelson | 9 | Daughter | — | Illinois |
| 51 | James Swank | 25 | Hired Hand | — | Illinois |
| 52 | Fred Wendtstraus | 50 | Head | Farming | Illinois |
| 53 | Hilda Wendtstraus | 50 | Wife | — | Illinois |
| 54 | Irene Wendtstraus | 16 | Daughter | — | Illinois |
| 55 | Dale Wendtstraus | 14 | Son | Farm Hand | Illinois |
| 56 | Ruth Wendtstraus | 11 | Daughter | — | Illinois |
| 57 | Jean Wendtstraus | 7 | Daughter | — | Illinois |
| 58 | Eleigh Hunt | 41 | Head | Farming | Illinois |
| 59 | Mildred Hunt | 33 | Wife | — | Illinois |
| 60 | George Matterson | 51 | Head | Farm Hand | Illinois |
| 61 | Elizabeth Matterson | 53 | Wife | — | Illinois |
| 62 | Katherine Matterson | 24 | Daughter | — | Illinois |
| 63 | Ray Matterson | 16 | Son | Farm Hand | Illinois |
| 64 | Henry Nelson | 60 | Head | — | Illinois |
| 65 | Lillian Nelson | 52 | Wife | — | Illinois |
| 66 | Nels Nelson | 27 | Son | Farm Hand | Illinois |
| 67 | Arthur Nelson THIS PERSON | 20 | Son | Farming | Illinois |
| 68 | Mary Nelson | 18 | Daughter | — | Illinois |
| 69 | Mildred Nelson | 14 | Daughter | — | Colorado |
| 70 | Artheur Carlson | 51 | Head | Butcher | Illinois |
| 71 | Agda Carlson | 52 | Wife | — | Sweden |
| 72 | J. M. Rice | 56 | Head | Farming | Illinois |
| 73 | Murl Rice | 55 | Wife | — | Illinois |
| 74 | Dale Rice | 19 | Son | Farm Hand | Illinois |
| 75 | Arthur Swanson | 39 | Head | Farming | Illinois |
| 76 | Gladys Swanson | 32 | Wife | — | Illinois |
| 77 | Shirley Swanson | 7 | Daughter | — | Illinois |
| 78 | Evelyn Swanson | 5 | Daughter | — | Illinois |
| 79 | Arthur Jr. Swanson | 7 | Son | — | Illinois |
| 80 | Anna Louise Swanson | 4 | Daughter | — | Illinois |
Related Census Records
Pedigree Summary
Arthur + 3 siblings
Gen 1 · 4 parents
~0.84
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)