CN
Clarence Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kendall-County, Illinois
Our Model Tree links this Clarence Nelson across the 1910, 1920, 1930 and 1940 US Censuses in Kendall-County, Illinois (XGBoost, ~Confirmed), with identified parents Sever & John — first a head (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kendall-County, Illinois |
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Plano city |
| 1935 Residence (County) | Kendall |
| Additional Details | |
| Occupation | Contractor |
| Industry | Trucking |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Contractor |
| Township / Ward | Plano City |
| Est. Birth Year | ~1906 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Jeanette Nelson | Daughter | — | 11 | ~1929 |
| Clarence Nelson | Head | — | 34 | ~1906 |
| Jeanette Ballard | Other | — | 30 | ~1910 |
| Lois Nelson | Son | — | 8 | ~1932 |
| Effie Nelson | Spouse | — | 34 | ~1906 |
Census Appearances
1910
Kendall, Illinois
Son, age 4
Kendall, Illinois · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Kendall, Illinois
Son, age 14
Kendall, Illinois · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Kendall, Illinois
Other, age 24
Kendall, Illinois · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | maker |
| Industry | buildings |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | 23 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Kendall-County, Illinois
Head, age 34
Kendall-County, Illinois · implied b. ~1906 — 5 household members
| Surname | Nelson |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Plano city |
| 1935 Residence (County) | Kendall |
| Occupation | Contractor |
| Industry | Trucking |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| 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 Clarence Nelson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Sever Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and mother Nettie Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Sever Nelson
b. ~1868
Source father
● Household
· direct · ~0.92
Father
John Nelson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Nettie Nelson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Nelson
Head · 1940 · age 34 · b. ~1906 · 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 — Kendall-County, Illinois
Open full size
1940 US Federal Census — Kendall-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00825-00171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack A. White | 56 | Lodge | Office Manager | Iowa |
| 2 | Charles Sorensen | 35 | Lodge | Owner | Illinois |
| 3 | James Monde | 31 | Head | Assembler | Illinois |
| 4 | Irene Monde | 30 | Wife | — | Illinois |
| 5 | Daryl Monde | 3 | Son | — | Illinois |
| 6 | James Monde | 1 | Son | — | Illinois |
| 7 | Josephine Sauer | 73 | Head | — | Illinois |
| 8 | Lottie Degraff | 56 | Lodge | — | Illinois |
| 9 | Harry Scott | 73 | Head | Del. Clerk | Ohio |
| 10 | Harry Meyers | 45 | Head | Cement Finisher | Germany |
| 11 | Dora Meyers | 41 | Wife | — | Pennsylvania |
| 12 | Ben Dobbs | 40 | Head | Cutter | Missouri |
| 13 | Ona Dobbs | 40 | Wife | Finisher | Missouri |
| 14 | Dorothy Dobbs | 21 | Daughter | Finisher | Illinois |
| 15 | Verna Dobbs | 20 | Daughter | Finisher | Illinois |
| 16 | Russell Dobbs | 16 | Son | — | Illinois |
| 17 | Lloyd Floyd | 58 | Head | — | Illinois |
| 18 | Helen Floyd | 56 | Wife | Teacher | Illinois |
| 19 | Bernice Floyd | 16 | Daughter | Social Worker | Illinois |
| 20 | Riley Dawson | 48 | Head | Factory | Illinois |
| 21 | Ruth Dawson | 44 | Wife | — | Illinois |
| 22 | Constance Dawson | 17 | Daughter | — | Illinois |
| 23 | Barbara Dawson | 11 | Daughter | — | Illinois |
| 24 | Minerva Linsabaugh | 66 | Mother-in-law | — | Ohio |
| 25 | Bessie Wallett | 38 | Sister-in-law | Maid | Illinois |
| 26 | Clarence Nelson THIS PERSON | 34 | Head | Contractor | Illinois |
| 27 | Effie Nelson | 34 | Wife | — | Illinois |
| 28 | Jeanette Nelson | 11 | Daughter | — | Illinois |
| 29 | Lois Nelson | 8 | Son | — | Illinois |
| 30 | Jeanette Ballard | 30 | Maid | Housework | Michigan |
| 31 | George Hancock | 40 | Head | Engine Monitor | Missouri |
| 32 | Esther Hancock | 35 | Wife | Finisher | Illinois |
| 33 | Carrie Hancock | 11 | Daughter | — | Illinois |
| 34 | Fred Cleveland | 44 | Head | Laborer | Illinois |
| 35 | Alice Cleveland | 44 | Wife | — | Illinois |
| 36 | Robert Cleveland | 17 | Son | — | Illinois |
| 37 | Marilyn Cleveland | 15 | Daughter | — | Illinois |
Pedigree Summary
Clarence
Gen 1 · 3 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)