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John Black — 1930 US Census Record
Model Tree available1930 United States Federal Census · Franklin, Ohio
Our Model Tree links this John Black across the 1920, 1930 and 1940 US Censuses in Franklin, Ohio (XGBoost, ~Confirmed), with identified parents Helen & Charles — first a son (b.~1906), then head of a 6-person household.
Age 24
b. ~1906
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Franklin, Ohio |
| Surname | Black |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Labour |
| Industry | Street Construct. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Labour |
| Township / Ward | Columbus City |
| Est. Birth Year | ~1906 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Black | Daughter | — | 14 | ~1916 |
| Charles Black | Head | — | 55 | ~1875 |
| Anna Black | Other | — | 45 | ~1885 |
| Merrill Black | Other | — | 1 | ~1929 |
| John Black | Son | — | 24 | ~1906 |
| Thurman Black | Son | — | 21 | ~1909 |
Census Appearances
1920
Franklin, Ohio
Son, age 13
Franklin, Ohio · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Franklin, Ohio
Son, age 24
Franklin, Ohio · implied b. ~1906 — 6 household members
| Surname | Black |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Labour |
| Industry | Street Construct. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Franklin-County, Ohio
Son, age 35
Franklin-County, Ohio · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Block |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Franklin |
| Occupation | Salesman |
| Industry | Magazine Co. |
| Class of Worker | PW |
| Income (1939) | 320 |
| 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 John Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Helen Block (~0.92 confidence) and father Charles Black (~0.92 confidence) and mother Anna Black (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Helen Block
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Charles Black
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Anna Black
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Black
Son · 1930 · age 24 · b. ~1906 · Ohio
★ You are viewing this record
Sibling
Thurman Black
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Black
Sibling · 1930 · age 14
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
1930 US Federal Census — Franklin, Ohio
Open full size
1930 US Federal Census — Franklin, Ohio
Page Contents
35 people indexed on this census page (ia:1930:ohiocensus00reel1800:1043)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James F. Mcclary | 25 | Head | Labour | Ohio |
| 2 | Faye S. Mcclary | 22 | Wife-H | — | Virginia |
| 3 | Mabel R. Mcclary | 1 | Daughter | — | Ohio |
| 4 | William F. Morgan | 36 | Head | Excavating Work | Ohio |
| 5 | Flossie C. Morgan | 34 | Wife-H | Servant | Ohio |
| 6 | Forest N. Robson | 47 | Head | Ice Handler | Ohio |
| 7 | Emma Robson | 44 | Wife-H | — | Ohio |
| 8 | Evelyn Robson | 15 | Daughter | — | Ohio |
| 9 | Ruth E. Robson | 12 | Daughter | — | Ohio |
| 10 | Goldie M. Robson | 12 | Daughter | — | Ohio |
| 11 | Clarence J. Pidock | 21 | Son-in-law | Operator | Ohio |
| 12 | Ada J. Pidock | 17 | Daughter | — | Ohio |
| 13 | Jane L. Pidock | 2 | Granddaughter | — | Ohio |
| 14 | Clarence E. Whitt | 21 | Nephew | Truck Driver | Ohio |
| 15 | Rufohn M. Wright | 63 | Head | Evangelist | Tennessee |
| 16 | Jennie Wright | 61 | Wife-H | — | Canada-English |
| 17 | Earnest M. Wright | 24 | Son | — | Washington |
| 18 | Merle Ab. Wright | 20 | Son | — | British Columbia |
| 19 | Charles A. Black | 55 | Head | Blacksmith | Ohio |
| 20 | Anna M. Black | 45 | Wife-H | — | Ohio |
| 21 | John M. Black THIS PERSON | 24 | Son | Labour | Ohio |
| 22 | Thurman Black | 21 | Son | Labour | Ohio |
| 23 | Mary E. Black | 14 | Daughter | — | Ohio |
| 24 | Merrill L. Black | 1 | Jr-Son | — | Ohio |
| 25 | Evan E. Wiant | 32 | Head | Checker & Packer | Canada-English |
| 26 | Elsie E. Wiant | 37 | Wife-H | — | Canada-English |
| 27 | Wesley Denney | 49 | Head | Laborer | Ohio |
| 28 | Demile Denney | 47 | Wife-H | — | Ohio |
| 29 | Harold Denney | 23 | Son | Laborer | Ohio |
| 30 | Frank Denney | 19 | Son | Labour | Ohio |
| 31 | Henry Denney | 17 | Son | — | Ohio |
| 32 | George Denney | 14 | Son | — | Ohio |
| 33 | Charles Denney | 12 | Son | — | Ohio |
| 34 | Robert Denney | 7 | Son | — | Ohio |
| 35 | James Denney | 3 | Son | — | Ohio |
Related Census Records
Pedigree Summary
John + 2 siblings
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 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)