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John Arthur — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clark-County, Ohio
Our Model Tree links this John Arthur across the 1920, 1930 and 1940 US Censuses in Clark-County, Ohio (XGBoost, ~Confirmed), with identified parents Ralph & Bertha — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Ohio |
| Surname | Arthur |
| Given Name | John O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Occupation | Billing Machine |
| Industry | Diesel Motors |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Billing Machine |
| Township / Ward | Springfield |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Arthur | Son | — | 22 | ~1918 |
| Rita Arthur | Daughter | — | 18 | ~1922 |
| Bertha Arthur | Head | — | 57 | ~1883 |
Census Appearances
1920
Clark, Ohio
Son, age 2
Clark, Ohio · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arthur |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clark, Ohio
Son, age 12
Clark, Ohio · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arthur |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clark-County, Ohio
Son, age 22
Clark-County, Ohio · implied b. ~1918 — 3 household members
| Surname | Arthur |
| Given Name | John O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Occupation | Billing Machine |
| Industry | Diesel Motors |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | H 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 John Arthur across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Arthur (~0.92 confidence) and mother Bertha Arthur (~0.92 confidence) and mother Bertha Arthur (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Arthur
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Bertha Arthur
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Bertha Arthur
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Arthur
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Rita Arthur
Sibling · 1940 · age 18
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 — 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-t0627-03039-00185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John William Buck | 5 | Grandson | — | Ohio |
| 2 | Clifford R. Stephens | 47 | Head | Cement Finisher | Ohio |
| 3 | Estella O. Stephens | 23 | Wife | — | Ohio |
| 4 | Evelyn Stephens | 4 | Daughter | — | Ohio |
| 5 | Clifford W. Stephens | 2 | Son | — | Ohio |
| 6 | Pearl G. Wright | 56 | Head | Own Business | Ohio |
| 7 | Lena Wright | 48 | Wife | Cook | Ohio |
| 8 | Louise Falvery | 48 | Lodger | Waitress | Ohio |
| 9 | Edward S. Bayles | 37 | Head | Trimmer | Ohio |
| 10 | Bertha Bayles | 36 | Wife | — | Ohio |
| 11 | Harry Foreman | 25 | Head | Machinist | Ohio |
| 12 | Mildred A. Foreman | 20 | Wife | — | Ohio |
| 13 | James X. Foreman | 1 | Son | — | Ohio |
| 14 | Jet G. Moore | 52 | Head | Trainman | Kansas |
| 15 | Mary Moore | 52 | Wife | — | Ohio |
| 16 | Rose Moore | 33 | Daughter | Teacher | Ohio |
| 17 | Albert Gordon | 47 | Lodger | Laborer | Pennsylvania |
| 18 | Joe Morous | 46 | Lodger | Laborer | Pennsylvania |
| 19 | Orville Henson | 39 | Head | Watchman | Ohio |
| 20 | Irene R. Henson | 42 | Wife | — | Ohio |
| 21 | Norman S. Wallace | 31 | Head | Salesman | Ohio |
| 22 | Joyce Wallace | 6 | Daughter | — | Ohio |
| 23 | Ronald W. Wallace | 4 | Son | — | Ohio |
| 24 | Harry G. Bules | 41 | Head | Proprietor | Ohio |
| 25 | Mary E. Bules | 24 | Wife | — | Ohio |
| 26 | Alvina Bules | 5 | Daughter | — | Ohio |
| 27 | Alfred Bules | 4 | Son | — | Ohio |
| 28 | Forest Tull | 26 | Head | Laborer | Ohio |
| 29 | Corrine Q. Tull | 22 | Wife | — | Ohio |
| 30 | Vernard Leroy Tull | 4 | Son | — | Ohio |
| 31 | Bertha Arthur | 57 | Head | Stenographer | Ohio |
| 32 | John O. Arthur THIS PERSON | 22 | Son | Billing Machine | Ohio |
| 33 | Rita Arthur | 18 | Daughter | Comptometer Operator | Ohio |
| 34 | Merrel G. Baumgardner | 26 | Head | Connector | Ohio |
| 35 | Betty Baumgardner | 19 | Daughter | Housework | Ohio |
| 36 | Jack Baumgardner | 0 | Son | — | Ohio |
| 37 | Susan O. Lowery | 64 | Head | Janitress | Virginia |
| 38 | Joseph Gibson | 33 | Grandson | Laborer | Pennsylvania |
| 39 | Doris Gibson | 15 | Lodger | — | Ohio |
| 40 | Lula G. Simons | 31 | Head | Housekeeper | Georgia |
Pedigree Summary
John + 1 sibling
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)