TS
Thomas Sullivan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Thomas Sullivan across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents P & Lucy — first a head (b.~1900), then head of a 5-person household.
Age 30
b. ~1900
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Sullivan |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Claim Adjuster |
| Industry | Motor Club |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9400 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Claim Adjuster |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1900 |
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 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sullivan | Daughter | — | 3 | ~1927 |
| Jean Sullivan | Daughter | — | 5 | ~1925 |
| Thomas Sullivan | Head | — | 30 | ~1900 |
| Agatha Nelson | Other | — | 30 | ~1900 |
| Zephyrine Sullivan | Spouse | — | 28 | ~1902 |
Census Appearances
1910
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 19
Cook, Illinois · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Bookkeeper |
| Industry | Tailor Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 30
Cook, Illinois · implied b. ~1900 — 5 household members
| Surname | Sullivan |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Claim Adjuster |
| Industry | Motor Club |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9400 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Thomas Sullivan across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father P Sullivan (~0.92 confidence) and mother Lucy Sullivan (~0.92 confidence) and father William Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
P Sullivan
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Lucy Sullivan
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
William Sullivan
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Sullivan
Head · 1930 · age 30 · b. ~1900 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel428:0176)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marlon King | 31 | Head | Conductor | Irish Free State |
| 52 | Nellie King | 32 | Wife | None | Irish Free State |
| 53 | Harry W. Harvey | 67 | Head | Warehouse Mgr | Ohio |
| 54 | Frances Harvey | 67 | Wife | None | Illinois |
| 55 | Michael Ryan | 78 | Head | None | Irish Free State |
| 56 | Bridget Ryan | 69 | Wife | None | Northern Ireland |
| 57 | Patrick Quinn | 25 | Cousin | Sales Clerk | Northern Ireland |
| 58 | Mary Blasick | 33 | Roomer | Sales Lady | Illinois |
| 59 | Robert B. Amadon | 43 | Head | Assistant Engineer | Massachusetts |
| 60 | Lepha H. Amadon | 43 | Wife | None | Massachusetts |
| 61 | Helma B. Amadon | 14 | Daughter | None | Connecticut |
| 62 | Charles Blevins | 40 | Head | Mechanic | Alabama |
| 63 | Eileen Blevins | 35 | Wife | None | Illinois |
| 64 | Eileen Jr. Blevins | 12 | Daughter | None | Illinois |
| 65 | Carlene Blevins | 10 | Daughter | None | Illinois |
| 66 | Berger Johnson | 52 | Head | Constructor | Sweden |
| 67 | Evelyn Johnson | 16 | Daughter | None | Illinois |
| 68 | Angus C. Dickson | 53 | Head | Manager | Canada English |
| 69 | Katherine Dickson | 54 | Wife | None | Ohio |
| 70 | Alvin H. Pearson | 33 | Head | Engineer | Minnesota |
| 71 | Ruth Pearson | 30 | Wife | None | Illinois |
| 72 | Curtis Britton | 19 | Roomer | Sales Clerk | Illinois |
| 73 | Chester Van Kouvering | 24 | Head | Record Clerk | Michigan |
| 74 | Catherine A. Van Kouvering | 22 | Wife | Stenographer | Illinois |
| 75 | Anthony J. Frate | 31 | Head | Clerk | Illinois |
| 76 | Anita Frate | 25 | Wife | None | Italy |
| 77 | Anthony Jr. Frate | 2 | Son | None | Illinois |
| 78 | Thomas J. Sullivan THIS PERSON | 30 | Head | Claim Adjuster | Illinois |
| 79 | Zephyrine Sullivan | 28 | Wife | None | Illinois |
| 80 | Jean Sullivan | 5 | Daughter | None | Illinois |
| 81 | Margaret Sullivan | 3 | Daughter | None | Illinois |
| 82 | Agatha Nelson | 30 | Sister-in-law | Booking & Advertising | Illinois |
| 83 | Emma Dickinson | 68 | Head | None | Canada English |
| 84 | Marjorie Dickinson | 39 | Daughter | Reg Nurse | Illinois |
| 85 | Edith Read | 34 | Roomer | Reg Nurse | Illinois |
| 86 | Timothy Connell | 28 | Head | Freight Clerk | Irish Free State |
| 87 | Johanna Connell | 28 | Wife | None | Irish Free State |
| 88 | Timothy Connell | 1 | Son | None | Illinois |
| 89 | Patrick Sullivan | 22 | Brother-in-law | Laborer | Irish Free State |
| 90 | William H. Martin | 49 | Head | Painter | Illinois |
| 91 | Mary Martin | 41 | Wife | None | England |
| 92 | Raymond Martin | 19 | Son | Sheet Metal Worker | Illinois |
| 93 | Regina Martin | 15 | Daughter | None | Illinois |
| 94 | Eileen Martin | 10 | Daughter | None | Illinois |
| 95 | John C. Ferris | 71 | Head | None | Illinois |
| 96 | Anna S. Ferris | 69 | Wife | None | Illinois |
| 97 | Henry J. Ullrich | 48 | Head | Engineer | Iowa |
| 98 | Harold Carner | 21 | Son-in-law | Plumber | Illinois |
| 99 | Genevieve Carner | 18 | Daughter | None | Illinois |
| 100 | William P. Kerr | 50 | Head | Fireman | Illinois |
Pedigree Summary
Thomas
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)