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Charles Arnold — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Charles Arnold across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Edna — first a son (b.~1914), then head of a 7-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Arnold |
| Given Name | Charles F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Firefighter |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Firefighter |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1914 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Meredith Arnold | Daughter | — | 12 | ~1928 |
| Emma Mckinley | Daughter | — | 35 | ~1905 |
| Charles Arnold | Head | — | 64 | ~1876 |
| Thelma Arnold | Other | — | 23 | ~1917 |
| Charles Arnold | Son | — | 26 | ~1914 |
| Herbert Arnold | Son | — | 21 | ~1919 |
| Edna Arnold | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Cook, Illinois
Other, age 4
Cook, Illinois · implied b. ~1916 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnhold |
| Given Name | Charles |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Other, age 15
Cook, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnhold |
| Given Name | Charles |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
Cook-County, Illinois
Son, age 26
Cook-County, Illinois · implied b. ~1914 — 7 household members
| Surname | Arnold |
| Given Name | Charles F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Firefighter |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | No 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 Charles Arnold across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Arnold (~0.92 confidence) and mother Edna Arnold (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Arnold
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Edna Arnold
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Arnold
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Meredith Arnold
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Arnold
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Mckinley
Sibling · 1940 · age 35
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
40 people indexed on this census page (nara:1940:m-t0627-01003-00661)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M Lubas | 48 | Head | Stock Clerk | Illinois |
| 2 | Helen Lubas | 49 | Wife | — | Illinois |
| 3 | Edward P Lubas | 46 | Brother | Machinist Helper | Illinois |
| 4 | Mary Lubas | 46 | Sister in law | — | Illinois |
| 5 | Edward P Jr Lubas | 17 | Nephew | — | Illinois |
| 6 | Lois Lubas | 15 | Niece | — | Illinois |
| 7 | John J Hrobar | 48 | Head | Meat Cutter | Czecho Slovakia |
| 8 | Katherine Hrobar | 43 | Wife | — | Czecho Slovakia |
| 9 | Othelia Hrobar | 20 | Daughter | Beauty Operator Apprentice | Illinois |
| 10 | Anna Hrobar | 13 | Daughter | — | Illinois |
| 11 | Folmer Simonsen | 27 | Head | Cost Accountant | Illinois |
| 12 | Catherine Simonsen | 23 | Wife | — | Wisconsin |
| 13 | Folmer D Simonsen | 3 | Son | — | Illinois |
| 14 | Harry B Kajewski | 45 | Head | Cutter | Illinois |
| 15 | Josephine Kajewski | 72 | Mother | — | Germany |
| 16 | Charles Brockman | 38 | Brother in law | Truck Driver | Illinois |
| 17 | Agnes S Brockman | 36 | Sister | Saleswoman Retail | Illinois |
| 18 | S Kraczykowski | 48 | Head | Furniture Mover | Illinois |
| 19 | Celia Kraczykowski | 43 | Wife | — | Illinois |
| 20 | Clarence Kraczykowski | 19 | Son | Paint Sprayer | Illinois |
| 21 | Edward Schneider | 57 | Head | Punch Press Operator | Illinois |
| 22 | Leona G Schneider | 54 | Wife | Seamstress | Illinois |
| 23 | Robert Schneider | 18 | Son | — | Illinois |
| 24 | Edward C Wilson | 28 | Son in law | Estimator | Illinois |
| 25 | Lucile M Wilson | 29 | Daughter | — | Illinois |
| 26 | Myra Wilson | 4 | Daughter | — | Illinois |
| 27 | Conrad Wilson | 1 | Son | — | Illinois |
| 28 | Otto G Kiesel | 50 | Head | Mail Carrier | Illinois |
| 29 | Caroline Kiesel | 56 | Wife | — | Indiana |
| 30 | Evelyn Kiesel | 15 | Daughter | — | Illinois |
| 31 | Anthony J Keiley | 33 | Head | Policy Underwriter | Illinois |
| 32 | Hazel M Keiley | 31 | Wife | — | Illinois |
| 33 | Anthony Jr Keiley | 2 | Son | — | Illinois |
| 34 | Charles W Arnold | 64 | Head | Night Watchman | Illinois |
| 35 | Edna Arnold | 59 | Wife | — | Illinois |
| 36 | Herbert Arnold | 21 | Son | — | Illinois |
| 37 | Charles F Arnold THIS PERSON | 26 | Son | Firefighter | Illinois |
| 38 | Thelma Arnold | 23 | Daughter in law | — | Iowa |
| 39 | Meredith Arnold | 12 | Daughter | — | Illinois |
| 40 | Emma Mckinley | 35 | Daughter | File Clerk | Illinois |
Pedigree Summary
Charles + 3 siblings
Gen 1 · 2 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)