JC
John Clark — 1930 US Census Record
Model Tree available1930 United States Federal Census · Clark, Ohio
Our Model Tree links this John Clark across the 1910, 1920 and 1930 US Censuses in Clark, Ohio (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1901), then head of a 4-person household.
Age 29
b. ~1901
Male
Head
Born: Ohio
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Clark, Ohio |
| Surname | Clark |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Technician |
| Industry | Dental Lab. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 7,500 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Technician |
| Township / Ward | Springfield City |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Natalie Clark | Daughter | — | 1 | ~1929 |
| John Clark | Head | — | 29 | ~1901 |
| Rosie Geider | Other | — | 29 | ~1901 |
| Clarice Clark | Other | — | 37 | ~1893 |
Census Appearances
1910
Clark, Ohio
Son, age 9
Clark, Ohio · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Clark, Ohio
Son, age 19
Clark, Ohio · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clark, Ohio
Head, age 29
Clark, Ohio · implied b. ~1901 — 4 household members
| Surname | Clark |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Technician |
| Industry | Dental Lab. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 7,500 |
| 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 Clark across 3 US Census years (1910, 1920 and 1930) in Clark, Ohio, using XGBoost record linkage. Identified parents: father John Clark (~0.92 confidence) and father John Clark (~0.92 confidence) and mother Celia Clark (~0.92 confidence) and mother Rose Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Clark
b. ~1865
Source father
● Household
· direct · ~0.92
Father
John Clark
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Celia Clark
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Rose Clark
b. ~1855
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Clark
Head · 1930 · age 29 · b. ~1901 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Clark, Ohio
Open full size
1930 US Federal Census — Clark, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1757:0401)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edna P. Young | 37 | Wife-H | — | Ohio |
| 2 | George B. Smith | 42 | Head | Attorney | Ohio |
| 3 | Florence N. Smith | 41 | Wife-H | — | Ohio |
| 4 | William K. Graham | 53 | Head | Physician | Ohio |
| 5 | Grace L. Graham | 49 | Wife-H | — | Ohio |
| 6 | Jean L. Graham | 23 | Daughter | — | Ohio |
| 7 | Francis M. Graham | 19 | Daughter | — | Ohio |
| 8 | William K. Jr. Graham | 18 | Son | — | Ohio |
| 9 | Eleanor A. Graham | 4 | Daughter | — | Ohio |
| 10 | Homer W. Heymann | 37 | Head | Manager | Ohio |
| 11 | Muriel O. Heymann | 37 | Wife-H | — | Ohio |
| 12 | Vance B. Heymann | 12 | Son | — | Ohio |
| 13 | Mary A. Heymann | 8 | Daughter | — | Indiana |
| 14 | John H. Shaw | 53 | Head | Barber | Scotland |
| 15 | Fay L. Shaw | 42 | Wife-H | — | Ohio |
| 16 | Donald E. Shaw | 16 | Son | — | Ohio |
| 17 | Harold E. Shaw | 9 | Son | — | Ohio |
| 18 | Paul P. Bruce | 35 | Head | Professor | Oklahoma |
| 19 | Muriel L. Bruce | 35 | Wife-H | — | Illinois |
| 20 | Marilyn C. Bruce | 6 | Daughter | — | Ohio |
| 21 | Minton B. Bruce | 4 | Son | — | Ohio |
| 22 | John E. Clark THIS PERSON | 29 | Head | Technician | Ohio |
| 23 | Clarice A. Clark | 37 | Wife-H | — | New York |
| 24 | Natalie A. Clark | 1 | Daughter | — | Ohio |
| 25 | Rosie M. Geider | 29 | Servant | Servant | Ohio |
| 26 | Paul J. Barnaby | 36 | Head | Manager | Ohio |
| 27 | Dorothy M. Barnaby | 32 | Wife-H | — | Utah |
| 28 | Elaine A. Barnaby | 4 | Daughter | — | Ohio |
| 29 | Bruce M. Barnaby | 1 | Son | — | Ohio |
| 30 | Horace E. Shepherd | 37 | Head | Machinist | Ohio |
| 31 | Lena M. Shepherd | 38 | Wife-H | — | Ohio |
| 32 | Hilda L. Shepherd | 16 | Daughter | — | Ohio |
| 33 | Norma J. Shepherd | 11 | Daughter | — | Ohio |
| 34 | George L. Bauer | 37 | Head | Manager | Ohio |
| 35 | Emma V. Bauer | 38 | Wife-H | — | Kentucky |
| 36 | Virginia A. Bauer | 16 | Daughter | — | Ohio |
| 37 | Viola J. Bauer | 12 | Daughter | — | Ohio |
| 38 | Bruce B. Pruitt | 42 | Head | Sales Manager | Kansas |
| 39 | Daisy P. Pruitt | 48 | Wife-H | — | Kansas |
| 40 | Dorothy M. Pruitt | 12 | Daughter | — | Kansas |
| 41 | Charles Fox | 31 | Boarder | Teacher | Ohio |
| 42 | Charles M. Caldwell | 23 | Boarder | Teacher | Ohio |
| 43 | Glenn Delling | 23 | Boarder | Teacher | Ohio |
| 44 | Louis J. Dillman | 49 | Head | Machinist | Ohio |
| 45 | Carrie M. Dillman | 42 | Wife-H | — | Ohio |
| 46 | Marcus M. Myers | 34 | Head | Sales Manager | Ohio |
| 47 | Jessie Myers | 34 | Wife-H | — | Ohio |
| 48 | Eloise L. Myers | 9 | Daughter | — | Ohio |
| 49 | Marcus Jr. Myers | 5 | Son | — | Ohio |
| 50 | Paul J. Myers | 0 | Son | — | Ohio |
Pedigree Summary
John
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)