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Robert Jacobs — 1930 US Census Record
Model Tree available1930 United States Federal Census · Greene, Ohio
Our Model Tree links this Robert Jacobs across the 1910, 1920 and 1930 US Censuses in Greene, Ohio (XGBoost, ~Confirmed), with identified parents Chester & Chester — first a son (b.~1909), then head of a 4-person household.
Age 21
b. ~1909
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Greene, Ohio |
| Surname | Jacobs |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Teacher |
| Township / Ward | Beaver Creek Township |
| Est. Birth Year | ~1909 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Jacobs | Son | — | 21 | ~1909 |
| Katherine Jacobs | Daughter | — | 25 | ~1905 |
| Ada Jacobs | Other | — | 52 | ~1878 |
| Chester Jacobs | Head | — | 60 | ~1870 |
Census Appearances
1910
Greene, Ohio
Son, age 1
Greene, Ohio · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| 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 |
1920
Greene, Ohio
Son, age 10
Greene, Ohio · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Greene, Ohio
Son, age 21
Greene, Ohio · implied b. ~1909 — 4 household members
| Surname | Jacobs |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Jacobs across 3 US Census years (1910, 1920 and 1930) in Greene, Ohio, using XGBoost record linkage. Identified parents: father Chester Jacobs (~0.92 confidence) and father Chester Jacobs (~0.92 confidence) and mother Ida Jacobs (~0.92 confidence) and mother Orpha Jacobs (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Chester Jacobs
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Chester Jacobs
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Ida Jacobs
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Orpha Jacobs
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Jacobs
Son · 1930 · age 21 · b. ~1909 · Ohio
★ You are viewing this record
Sibling
Katherine Jacobs
Sibling · 1930 · age 25
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 — Greene, Ohio
Open full size
1930 US Federal Census — Greene, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1804:0095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty J. | 3 | Daughter | — | Ohio |
| 2 | Albert L. Ankeney | 39 | Head | Farmer | Ohio |
| 3 | David L. Ankeney | 9 | Son | — | Ohio |
| 4 | Mary E. Ankeney | 9 | Daughter | — | Ohio |
| 5 | Philip H. Ankeney | 7 | Son | — | Ohio |
| 6 | Albert Ankeney | 83 | Father | — | Ohio |
| 7 | Helen Ankeney | 48 | Sister-H | — | Ohio |
| 8 | Josephine Ankeney | 44 | Sister | — | Ohio |
| 9 | Horace L. Brill | 29 | Head | Truckman | Ohio |
| 10 | Mildred I. Brill | 24 | Wife-H | — | Ohio |
| 11 | Dorothy B. Brill | 7 | Daughter | — | Michigan |
| 12 | Helen F. Brill | 5 | Daughter | — | Ohio |
| 13 | Jesse H. Bennington | 46 | Head | Farm Laborer | Virginia |
| 14 | Camilla E. Bennington | 42 | Wife-H | — | Ohio |
| 15 | Howard J. Bennington | 19 | Son | — | Ohio |
| 16 | Phyllis L. Bennington | 17 | Daughter | — | Ohio |
| 17 | Marjorie Bennington | 9 | Daughter | — | Ohio |
| 18 | Horace M. Ankeney | 54 | Head | Farmer | Ohio |
| 19 | Flora D. Ankeney | 58 | Wife-H | — | Ohio |
| 20 | Earl E. Heslaugh | 43 | Head | Farmer | Ohio |
| 21 | Atta L. Heslaugh | 33 | Wife-H | — | Ohio |
| 22 | Anna F. Heslaugh | 8 | Daughter | — | Ohio |
| 23 | H. Virginia Heslaugh | 7 | Daughter | — | Ohio |
| 24 | Martha J. Heslaugh | 6 | Daughter | — | Ohio |
| 25 | Emma J. Heslaugh | 4 | Daughter | — | Ohio |
| 26 | Nancy E. Heslaugh | 2 | Daughter | — | Ohio |
| 27 | William E. Heslaugh | 1 | Son | — | Ohio |
| 28 | Melva O. Russell | 16 | Boarder | Servant | Ohio |
| 29 | Arthur L. Durnbaugh | 52 | Head | Farmer | Ohio |
| 30 | Elizabeth E. Durnbaugh | 50 | Wife-H | — | Virginia |
| 31 | Ada B. Durnbaugh | 19 | Daughter | Saleslady | Ohio |
| 32 | David L. Durnbaugh | 16 | Son | — | Ohio |
| 33 | John P. Durnbaugh | 11 | Son | — | Ohio |
| 34 | Frank S. Duncan | 56 | Head | Teacher | Ohio |
| 35 | Franklin L. Trubee | 14 | Son-H | — | Tennessee |
| 36 | Eliza R. Trubee | 63 | Wife-H | — | Ohio |
| 37 | Ernest Bradford | 59 | Head | Farmer | Ohio |
| 38 | Martha S. Bradford | 54 | Wife-H | — | Ohio |
| 39 | Clarence O. Miller | 55 | Head | Proprietor | Ohio |
| 40 | Katherine D. Miller | 48 | Wife-H | — | Ohio |
| 41 | James Miller | 53 | Head | Farmer | Ohio |
| 42 | Jessie F. Miller | 58 | Sister-H | — | Ohio |
| 43 | Myrtle English | 23 | Boarder | Bookkeeper | Ohio |
| 44 | Andrew H. Boller | 77 | Head | — | Ohio |
| 45 | Martha J. Boller | 76 | Wife-H | — | Ohio |
| 46 | Emma M. Boller | 36 | Daughter | — | Ohio |
| 47 | Chester A. Jacobs | 60 | Head | Farmer | Ohio |
| 48 | Ada S. Jacobs | 52 | Wife-H | — | Ohio |
| 49 | Katherine S. Jacobs | 25 | Daughter | Teacher | Ohio |
| 50 | Robert B. Jacobs THIS PERSON | 21 | Son | Teacher | Ohio |
Pedigree Summary
Robert + 1 sibling
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)