RS
Robert Sullivan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Hamilton, Ohio
Our Model Tree links this Robert Sullivan across the 1920, 1930 and 1940 US Censuses in Hamilton, Ohio (XGBoost, ~Confirmed), with identified parents Edward & Lillian — first a son (b.~1912), then head of a 6-person household.
Age 18
b. ~1912
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hamilton, Ohio |
| Surname | Sullivan |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | North Bend Village |
| Est. Birth Year | ~1912 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Lillian Sullivan | Daughter | — | 21 | ~1909 |
| Edward Sullivan | Head | — | 51 | ~1879 |
| Lillian Sullivan | Other | — | 50 | ~1880 |
| Anna White | Other | — | 50 | ~1880 |
| Robert Sullivan | Son | — | 18 | ~1912 |
| Edward Sullivan | Son | — | 23 | ~1907 |
Census Appearances
1920
Hamilton, Ohio
Son, age 7
Hamilton, Ohio · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| 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
Hamilton, Ohio
Son, age 18
Hamilton, Ohio · implied b. ~1912 — 6 household members
| Surname | Sullivan |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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
Hamilton-County, Ohio
Head, age 28
Hamilton-County, Ohio · implied b. ~1912 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robt |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Miami Twp |
| 1935 Residence (County) | Hamilton |
| Occupation | Stillman |
| Industry | Refinery |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 2710 |
| Highest Grade | No 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 Robert Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Sullivan (~0.92 confidence) and mother Lillian Sullivan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Sullivan
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lillian Sullivan
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Sullivan
Son · 1930 · age 18 · b. ~1912 · Ohio
★ You are viewing this record
Sibling
Edward Sullivan
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Sullivan
Sibling · 1930 · age 21
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 — Hamilton, Ohio
Open full size
1930 US Federal Census — Hamilton, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1818:1075)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Howard T. Morris | 22 | Head | Meat Cutter | Kentucky |
| 52 | Margaret M. Morris | 22 | Wife-H | None | Ohio |
| 53 | Irma Ina F. Morris | 26 | Boarder | Teacher | Indiana |
| 54 | William Eady | 31 | Head | Machinist | Indiana |
| 55 | Alice M. Eady | 32 | Wife-H | None | Indiana |
| 56 | William L. Eady | 5 | Son | None | Indiana |
| 57 | Robert M. Eady | 3 | Son | None | Ohio |
| 58 | George Kearney | 10 | Step-son | None | Indiana |
| 59 | Rodney B. Eady | 40 | — | Bridge Carpenter | Ohio |
| 60 | Mary Eady | 28 | Wife-H | None | Ohio |
| 61 | Jeannette M. Eady | 1 | Daughter | None | Ohio |
| 62 | Leonard H. Eady | 0 | Son | None | Ohio |
| 63 | Oliver S. Horton | 41 | Head | Retail Merchant | Ohio |
| 64 | Gayle Horton | 31 | Wife-H | Saleslady | Kentucky |
| 65 | James O. Horton | 13 | Son | None | Ohio |
| 66 | Edward T. Sullivan | 51 | Head | Conductor | Ohio |
| 67 | Lillian M. Sullivan | 50 | Wife-H | None | Ohio |
| 68 | Edward T. Jr. Sullivan | 23 | Son | Assistant | Ohio |
| 69 | Lillian M. Sullivan | 21 | Daughter | Stenographer | Ohio |
| 70 | Robert A. Sullivan THIS PERSON | 18 | Son | None | Ohio |
| 71 | Anna White | 50 | Servant | None | Ireland |
| 72 | Thomas R. Gleason | 51 | Head | Foreman | Ohio |
| 73 | Jean E. Gleason | 18 | Daughter | None | Ohio |
| 74 | Gazelle P. Campbell | 23 | Servant | Servant | Indiana |
| 75 | Isaac E. Hayes | 49 | — | Janitor | Ohio |
| 76 | Euretta Hayes | 41 | Wife-H | None | Tennessee |
| 77 | Margaret Davis | 14 | Step-Daughter | None | Tennessee |
| 78 | Jack E. Davis | 12 | Step-son | None | Tennessee |
| 79 | Arthur S. Davis | 10 | Step-son | None | Georgia |
| 80 | Raymond Davis | 9 | Step-son | None | Ohio |
| 81 | Minerva Stephens | 90 | — | None | Ohio |
| 82 | Felix Morris | 36 | Head | Car Inspector | Kentucky |
| 83 | Edna S. Morris | 36 | Wife-H | None | Indiana |
| 84 | Evelyn L. Morris | 10 | Daughter | None | Ohio |
| 85 | Lotta M. Morris | 9 | Daughter | None | Ohio |
| 86 | Harold H. Huffman | 30 | Head | Switchman | Indiana |
| 87 | Clara Huffman | 25 | Wife-H | None | Indiana |
| 88 | William Huffman | 6 | Son | None | Indiana |
| 89 | Mary L. Huffman | 3 | Daughter | None | Ohio |
| 90 | Charles T. Delay | 31 | Head | Druggist | Indiana |
| 91 | Maye S. Delay | 28 | Wife-H | Teacher | Arkansas |
| 92 | Charles Utzinger | 25 | Head | Tie Handler | Kentucky |
| 93 | Hazel Utzinger | 20 | Wife-H | None | Kentucky |
| 94 | Macklin V. Topper | 29 | Boarder | Tie Handler | West Virginia |
| 95 | Frank J. Sr. Tishig | 63 | Head | Contractor | Germany |
| 96 | Julia Tishig | 62 | Wife-H | None | Ohio |
| 97 | Rachel Mauler | 50 | Sister-in-law | Retail Merchant | Ohio |
| 98 | Herbert S. Gleason | 26 | — | Foreman | Ohio |
| 99 | Fedora M. Gleason | 26 | Wife-H | None | Ohio |
| 100 | Patricia Gleason | 3 | Daughter | None | Ohio |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 2 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)