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Charles Arnold — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Charles-County, Missouri
Our Model Tree links this Charles Arnold across the 1920, 1930 and 1940 US Censuses in St.-Charles-County, Missouri (XGBoost, ~Confirmed), with identified parents Alice & Charles — first a head (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Charles-County, Missouri |
| Surname | Arnold |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Cottleville |
| 1935 Residence (County) | St Charles |
| Additional Details | |
| Occupation | laborer |
| Industry | W.P.A. Quarry |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 454 |
| Highest Grade | No 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | St Charles |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Carol Arnold | Daughter | — | 2 | ~1938 |
| Charles Arnold | Head | — | 23 | ~1917 |
| Eva Arnold | Spouse | — | 20 | ~1920 |
Census Appearances
1920
St Charles, …
Son, age 3
St Charles, Missouri · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Charles, …
Son, age 13
St Charles, Missouri · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Charles D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Charles-County, Missouri
Head, age 23
St.-Charles-County, Missouri · implied b. ~1917 — 3 household members
| Surname | Arnold |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Cottleville |
| 1935 Residence (County) | St Charles |
| Occupation | laborer |
| Industry | W.P.A. Quarry |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 454 |
| Highest Grade | No 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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: mother Alice Arnold (~0.92 confidence) and father Charles Arnold (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Alice Arnold
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Charles Arnold
b. ~1894
Source father
● Household
· direct · ~0.92
This person
Anchor record
Charles Arnold
Head · 1940 · age 23 · b. ~1917 · Missouri
★ 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 — St.-Charles-County, Missouri
Open full size
1940 US Federal Census — St.-Charles-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02145-00739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara Douglas | 30 | daughter | House Wife | Missouri |
| 2 | Alice Douglas | 6 | grand daughter | — | Missouri |
| 3 | Genevieve Douglas | 1 | grand daughter | — | Missouri |
| 4 | John H. Sylvester | 54 | Head | Farmer | Missouri |
| 5 | Adela R. Sylvester | 50 | wife | Housewife | Missouri |
| 6 | Milton Sylvester | 28 | son | Carpenter | Missouri |
| 7 | Helen Sylvester | 20 | daughter | House Work | Missouri |
| 8 | Wilfred Sylvester | 17 | son | Laborer | Missouri |
| 9 | Lynola Sylvester | 11 | daughter | — | Missouri |
| 10 | Alvin Heitgerd | 31 | Head | Farmer | Missouri |
| 11 | Welma Heitgerd | 31 | wife | — | Missouri |
| 12 | Norbert Heitgerd | 7 | son | — | Missouri |
| 13 | Betty Lorraine Heitgerd | 2 | daughter | — | Missouri |
| 14 | Clifford Heitgerd | 12 | son | — | Missouri |
| 15 | Robert Barklage | 51 | Head | Farmer | Missouri |
| 16 | Olga Barklage | 47 | wife | — | Missouri |
| 17 | Mary Lucille Barklage | 18 | daughter | — | Missouri |
| 18 | Robert Jr. Barklage | 7 | son | — | Missouri |
| 19 | John Grable | 50 | lodger | Laborer | Missouri |
| 20 | Elmer H. Nemzath | 36 | Head | Farmer | Missouri |
| 21 | Freida Nemzath | 37 | wife | — | Missouri |
| 22 | Arnold Nemzath | 13 | son | — | Missouri |
| 23 | Leona Nemzath | 9 | daughter | — | Missouri |
| 24 | Robert Nemzath | 4 | son | — | Missouri |
| 25 | Catherine Nemzath | 2 | daughter | — | Missouri |
| 26 | Otto E. Sr. Nemzath | 65 | father | Retired Farmer | Missouri |
| 27 | Hugo Kolkmeier | 38 | Head | Upholsterer | Missouri |
| 28 | Ellen A. Kolkmeier | 31 | wife | — | Oklahoma |
| 29 | Charles Arnold THIS PERSON | 23 | Head | Laborer | Missouri |
| 30 | Eva R. Arnold | 20 | wife | — | Illinois |
| 31 | Carol Jean Arnold | 2 | daughter | — | Missouri |
| 32 | August H. Kolkmeier | 48 | Head | Farmer | Missouri |
| 33 | Bertha R. Kolkmeier | 44 | wife | — | Missouri |
| 34 | Omar Kolkmeier | 18 | son | Helper On Farm | Missouri |
| 35 | Grace Kolkmeier | 16 | daughter | Helper On Farm | Missouri |
| 36 | Louise Kolkmeier | 14 | daughter | — | Missouri |
| 37 | Ethel Kolkmeier | 10 | daughter | — | Missouri |
| 38 | Arthur Kolkmeier | 7 | son | — | Missouri |
| 39 | Harlan Kolkmeier | 6 | son | — | Missouri |
| 40 | Albert Nolle | 36 | Head | Laborer | Missouri |
Pedigree Summary
Charles
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)