RA
Robert Arnold — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clark-County, Ohio
Our Model Tree links this Robert Arnold across the 1920, 1930 and 1940 US Censuses in Clark-County, Ohio (XGBoost, ~Confirmed), with identified parents George & Molly — first a head (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Ohio |
| Surname | Arnold |
| Given Name | Robert L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Occupation | Pattern Maker |
| Industry | Electric Motor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 245 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Pattern Maker |
| Township / Ward | Springfield |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Sandra Arnold | Daughter | — | 1 | ~1939 |
| Ellen Arnold | Spouse | — | 20 | ~1920 |
| Robert Arnold | Head | — | 23 | ~1917 |
Census Appearances
1920
Clark, Ohio
Son, age 2
Clark, Ohio · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clark, Ohio
Son, age 13
Clark, Ohio · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clark-County, Ohio
Head, age 23
Clark-County, Ohio · implied b. ~1917 — 3 household members
| Surname | Arnold |
| Given Name | Robert L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Occupation | Pattern Maker |
| Industry | Electric Motor |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 245 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Robert Arnold across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Arnold (~0.92 confidence) and mother Molly Arnold (~0.92 confidence) and father George Arnold (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Arnold
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Molly Arnold
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
George Arnold
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Arnold
Head · 1940 · age 23 · b. ~1917 · Ohio
★ 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 — Clark-County, Ohio
Open full size
1940 US Federal Census — Clark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03039-00295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chester Campbell | 13 | Boarder | — | Ohio |
| 42 | Bessie D. Riley | 45 | Head | Baker | Ohio |
| 43 | Howard W. Foos | 42 | Head | Assembler | Ohio |
| 44 | Helen Foos | 41 | Wife | Seamstress | Ohio |
| 45 | Mary Ellen Foos | 20 | Daughter | Operator | Ohio |
| 46 | Howard Foos | 18 | Son | Leather Cutter | Ohio |
| 47 | Warren C. Foos | 15 | Son | — | Ohio |
| 48 | Russell Foos | 12 | Son | — | Ohio |
| 49 | George W. Stewart | 22 | Head | Manager | Ohio |
| 50 | Dorothy L. Stewart | 21 | Wife | — | Ohio |
| 51 | Loren J. Sudduth | 40 | Head | Laborer | S. Carolina |
| 52 | Mildred M. Sudduth | 45 | Wife | — | Ohio |
| 53 | Merle Sudduth | 20 | Son | Glass Cutter | S. Carolina |
| 54 | Mary L. Burke | 22 | Sister in law | Assembler | Ohio |
| 55 | Robert E. Kiesling | 25 | Head | Core Maker | Ohio |
| 56 | Irma F. Kiesling | 19 | Wife | — | Ohio |
| 57 | Patricia J. Kiesling | 1 | Daughter | — | Ohio |
| 58 | Robert L. Arnold THIS PERSON | 23 | Head | Pattern Maker | Ohio |
| 59 | Ellen Arnold | 20 | Wife | — | Ohio |
| 60 | Sandra L. Arnold | 1 | Daughter | — | Ohio |
| 61 | Luther Pling | 43 | Head | Mail Clerk | W. Virginia |
| 62 | Lennon Pling | 42 | Wife | — | Ohio |
| 63 | Fred Evans | 20 | Son | Mail Clerk | Ohio |
| 64 | Vivian Evans | 17 | Daughter | — | Ohio |
| 65 | Charles H. Teague | 65 | Head | Machinist | Ohio |
| 66 | Ida S. Teague | 64 | Wife | — | Ohio |
| 67 | Herbert L. Teague | 21 | Son | Mechanic | Ohio |
| 68 | Ernest Stowe | 45 | Head | Foreman | Ohio |
| 69 | Ruth D. Stowe | 45 | Wife | — | Ohio |
| 70 | Richard L. Stowe | 19 | Son | Press Helper | Ohio |
| 71 | Rhoda A. Stowe | 14 | Daughter | — | Ohio |
| 72 | Barbara M. Stowe | 10 | Daughter | — | Ohio |
| 73 | John A. Stowe | 21 | Son | — | Ohio |
| 74 | Enida Stowe | 19 | Daughter in law | — | Ohio |
| 75 | John B. Trubitt | 53 | Head | Welder | Ohio |
| 76 | Nellie O. Trubitt | 43 | Wife | — | Ohio |
| 77 | Jesse Trubitt | 17 | Son | — | Ohio |
| 78 | Russell Trubitt | 13 | Son | — | Ohio |
| 79 | Paul Knott | 34 | Head | — | Ohio |
| 80 | Gertrude Knott | 30 | Wife | — | Ohio |
Pedigree Summary
Robert
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)