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John Sparks — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hamilton, Ohio
Our Model Tree links this John Sparks across the 1900, 1910, 1920 and 1930 US Censuses in Hamilton, Ohio (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 3-person household.
Age 58
b. ~1872
Male
Head
Born: Ohio
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Hamilton, Ohio |
| Surname | Sparks |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Plaster |
| Industry | Own Business |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Plaster |
| Township / Ward | Cincinnati City |
| Est. Birth Year | ~1872 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Rosa Sparks | Other | — | 57 | ~1873 |
| Russell Sparks | Son | — | 24 | ~1906 |
| John Sparks | Head | — | 58 | ~1872 |
Census Appearances
1900
Hamilton, Ohio
Head, age 27
Hamilton, Ohio · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ohio |
| Birth Month | Feb |
| Birth Year | 1873 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Write | At School |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1910
Hamilton, Ohio
Head, age 37
Hamilton, Ohio · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 12 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Plasterer |
| Industry | Buildings |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Hamilton, Ohio
Head, age 46
Hamilton, Ohio · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | John P |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | plasterer |
| Industry | contractor |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Head, age 58
Hamilton, Ohio · implied b. ~1872 — 3 household members
| Surname | Sparks |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Plaster |
| Industry | Own Business |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Radio Set | R |
| Veteran | No |
| 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 Sparks across 4 US Census years (1900, 1910, 1920 and 1930) in Hamilton, Ohio, using XGBoost record linkage.
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This person
Anchor record
John Sparks
Head · 1930 · age 58 · b. ~1872 · Ohio
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Hamilton, Ohio
Open full size
1930 US Federal Census — Hamilton, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1811:0452)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Milton Perkins | 47 | Head | Proprietor | Kentucky |
| 2 | Elizabeth Perkins | 37 | Wife-H | — | Kentucky |
| 3 | Harvey Jones | 46 | Boarder | Helper | Pennsylvania |
| 4 | David Linebaugh | 41 | Head | Contractor | Ohio |
| 5 | Effie Linebaugh | 41 | Wife-H | — | Ohio |
| 6 | Mary G Linebaugh | 18 | Daughter | — | Ohio |
| 7 | David Linebaugh | 16 | Son | — | Ohio |
| 8 | Effie Jane Linebaugh | 7 | Daughter | — | Ohio |
| 9 | Dallas Matthews | 27 | Head | Electrical Cont. | Kentucky |
| 10 | Loudon Matthews | 35 | Brother | Salesman | Ohio |
| 11 | Verda Matthews | 30 | Sister-H | — | Kentucky |
| 12 | Paul Matthews | 6 | Nephew | — | Ohio |
| 13 | Donnalou Matthews | 4 | Daughter | — | Ohio |
| 14 | Nora James Matthews | 29 | Servant | Servant | Georgia |
| 15 | Georgia Matthews | 29 | Servant | Servant | Georgia |
| 16 | Robert S Alcorn | 51 | Head | Attorney | Ohio |
| 17 | Edith Alcorn | 50 | Wife-H | — | Ohio |
| 18 | Robert Jr Alcorn | 19 | Son | — | Ohio |
| 19 | Janet Alcorn | 17 | Daughter | — | Ohio |
| 20 | Ely Alcorn | 15 | Son | — | Ohio |
| 21 | Andrew Marsh | 79 | Father-in-law | — | Ohio |
| 22 | Fred J Breitbeil | 48 | Head | Fireman | Ohio |
| 23 | Mary Breitbeil | 48 | Wife-H | — | Ohio |
| 24 | Fred Jr Breitbeil | 23 | Son | Salesman | Ohio |
| 25 | Marie Breitbeil | 18 | Daughter | Stenographer | Ohio |
| 26 | Ruth Breitbeil | 16 | Daughter | — | Ohio |
| 27 | John C Sparks THIS PERSON | 58 | Head | Plaster | Ohio |
| 28 | Rosa Sparks | 57 | Wife-H | — | Ohio |
| 29 | Russell D Sparks | 24 | Son | Plaster | Ohio |
| 30 | George Schuette | 38 | Head | Asst Clerk | Ohio |
| 31 | Clara Schuette | 35 | Wife-H | — | Ohio |
| 32 | Irene Schuette | 15 | Daughter | — | Ohio |
| 33 | George Jr Schuette | 9 | Son | — | Ohio |
| 34 | Betty Lou Schuette | 4 | Daughter | — | Ohio |
| 35 | Joseph Tansey | 21 | Lodger | Bookkeeper | Ohio |
| 36 | Earl Tansey | 27 | Lodger | Teacher | Ohio |
| 37 | Louis J Heck | 59 | Head | — | Ohio |
| 38 | Anna Heck | 51 | Wife-H | — | Germany |
| 39 | Peter Retholz | 57 | Head | Carpenter | Kentucky |
| 40 | Augusta Retholz | 49 | Wife-H | — | Kentucky |
| 41 | Sadie Retholz | 20 | Daughter | Assorter | Ohio |
| 42 | Bernard Retholz | 17 | Son | Helper | Ohio |
| 43 | Anna Rose Retholz | 15 | Daughter | — | Ohio |
| 44 | Charles Gaepp | 62 | Head | Grinder | Germany |
| 45 | Christina Gaepp | 64 | Wife-H | — | Germany |
| 46 | Erwin Gaepp | 23 | Son | Manager | Ohio |
| 47 | Dorothy Gaepp | 20 | Daughter-in-law | Messenger | Ohio |
| 48 | Matilda Murphy | 52 | Head | — | Ohio |
| 49 | Marlin Simmons | 22 | Head | Salesman | California |
| 50 | Lola Mae Simmons | 22 | Wife-H | — | Alabama |
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)