DS
Daniel Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Daniel Sullivan across the 1910, 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a son (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Sullivan |
| Given Name | Daniel L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Driver |
| Industry | Public Garage |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 420 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Driver |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Daniel | Age | Birth yr |
|---|---|---|---|---|
| Jennie Sullivan | Head | — | 62 | ~1878 |
| Jerry Sullivan | Other | — | 3 | ~1937 |
| Thomas Sullivan | Other | — | 7 | ~1933 |
| Thomas Sullivan | Son | — | 31 | ~1909 |
| Daniel Sullivan | Son | — | 33 | ~1907 |
Census Appearances
1910
Hamilton, Ohio
Other, age 4
Hamilton, Ohio · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Daniel |
| Relationship to Head | Grand-child |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Hamilton, Ohio
Son, age 13
Hamilton, Ohio · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Daniel |
| 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
Hamilton, Ohio
Son, age 23
Hamilton, Ohio · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | SULLIVAN |
| Given Name | DANIEL |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Laborer |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 33
Hamilton-County, Ohio · implied b. ~1907 — 5 household members
| Surname | Sullivan |
| Given Name | Daniel L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | Driver |
| Industry | Public Garage |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 420 |
| Highest Grade | H 1 |
| 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 Daniel Sullivan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Sullivan (~0.92 confidence) and father Joseph Sullivan (~0.92 confidence) and mother Jennie Sullivan (~0.92 confidence) and mother Jennie Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Sullivan
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Joseph Sullivan
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Jennie Sullivan
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Jennie Sullivan
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Daniel Sullivan
Son · 1940 · age 33 · b. ~1907 · Ohio
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Sibling
Thomas Sullivan
Sibling · 1940 · age 31
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
1940 US Federal Census — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03187-00241)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Allen J. Gainer | 63 | Head | Labor. | Georgia |
| 2 | Sarah J. Gainer | 55 | Wife | — | Georgia |
| 3 | Hershell Gainer | 21 | Son | New Worker | Georgia |
| 4 | Leahill Gainer | 17 | Daughter | — | Georgia |
| 5 | Juanita Gainer | 14 | Daughter | — | Ohio |
| 6 | Lucile Mcwilliams | 32 | Daughter | — | Georgia |
| 7 | Otilia Mcwilliams | 8 | Grand-dau. | — | Ohio |
| 8 | Jackie Mcwilliams | 4 | Grand-dau. | — | Ohio |
| 9 | Jennie J. Sullivan | 62 | Head | — | Ohio |
| 10 | Daniel L. Sullivan THIS PERSON | 33 | Son | Driver | Ohio |
| 11 | Thomas W. Sullivan | 31 | Son | Bus Driver | Ohio |
| 12 | Thomas Jr. Sullivan | 7 | Grand-son | — | Ohio |
| 13 | Jerry F. Sullivan | 3 | Grand-son | — | Ohio |
| 14 | Charles E. Willenbrink | 55 | Head | Paper Cutter | Ohio |
| 15 | Emma J. Willenbrink | 59 | Wife | — | Ohio |
| 16 | Charles E. Willenbrink | 18 | Son | Printer | Ohio |
| 17 | Fred J. Smith | 46 | Brother-law | Painter | Ohio |
| 18 | Christine Merkel | 72 | Head | — | Ohio |
| 19 | Clarence Merkel | 46 | Son | Labor | Ohio |
| 20 | Henry Bail | 21 | Head | Machine Operator | Ohio |
| 21 | Alice E. Bail | 22 | Wife | — | Ohio |
| 22 | J. A. Collins | 74 | Head | — | Ohio |
| 23 | Florence Collins | 71 | Wife | — | Ohio |
| 24 | Josephine Kirkley | 70 | Head | — | Ohio |
| 25 | Clara C. Kirkley | 44 | Daughter | Clerk | Ohio |
| 26 | Leo J. Kirkley | 42 | Son | Pressman | Ohio |
| 27 | Theresa Knap | 78 | Sister | — | Ohio |
| 28 | Bernard Vesting | 52 | Head | Hand Trucker | Ohio |
| 29 | Hilda Vesting | 47 | Wife | — | Kentucky |
| 30 | Walter C. Strauss | 23 | Son-in-law | Garment Presser | Ohio |
| 31 | Dorothy M. Strauss | 20 | Daughter | Hand Sewer | Ohio |
| 32 | Bernard Jr. Vesting | 17 | Son | — | Ohio |
| 33 | Edna J. Kempelin | 40 | Head | — | Kentucky |
| 34 | Edward H. Kempelin | 19 | Son | Electrician | Ohio |
| 35 | Betty Jane Kempelin | 12 | Daughter | — | Ohio |
| 36 | Arthur E. Kempelin | 10 | Son | — | Ohio |
| 37 | James Edward Fleming | 76 | Father | — | Kentucky |
| 38 | John Arnold | 50 | Head | Custodian | Ohio |
| 39 | Sylvia Arnold | 39 | Wife | — | Kentucky |
| 40 | Clara Daughter Arnold | 11 | Daughter | — | Ohio |
Pedigree Summary
Daniel + 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 1940 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)