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Joseph Sullivan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Joseph Sullivan across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Joseph & John — first a son (b.~1906), then head of a 3-person household.
Age 24
b. ~1906
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1906 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| John Sullivan | Head | — | 53 | ~1877 |
| Sarah Sullivan | Other | — | 50 | ~1880 |
| Joseph Sullivan | Son | — | 24 | ~1906 |
Census Appearances
1910
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1905 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 24
Cook, Illinois · implied b. ~1906 — 3 household members
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| 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 Joseph Sullivan across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Joseph Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and father Joseph Sullivan (~0.92 confidence) and mother Bertha Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Sullivan
b. ~1876
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Joseph Sullivan
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Bertha Sullivan
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Sullivan
Son · 1930 · age 24 · b. ~1906 · 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:illinoiscensus00reel441:0111)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Herbert Oswald | 26 | Son | Plasterer | Illinois |
| 52 | Helen Oswald | 20 | Daughter | Stenographer | Illinois |
| 53 | Matthew Mulcahy | 40 | Head | Fireman | Irish Free State |
| 54 | Amy Mulcahy | 35 | Wife-H | — | Irish Free State |
| 55 | Mary Mulcahy | 13 | Daughter | — | Illinois |
| 56 | Coletta Mulcahy | 11 | Daughter | — | Illinois |
| 57 | Rita Mulcahy | 10 | Daughter | — | Illinois |
| 58 | Daniel Mulcahy | 10 | Son | — | Illinois |
| 59 | Cecelia Mulcahy | 9 | Daughter | — | Illinois |
| 60 | John Mulcahy | 9 | Son | — | Illinois |
| 61 | Matthew Jr Mulcahy | 3 | Son | — | Illinois |
| 62 | Stephen W Connery | 43 | Head | Fireman | Ireland Free State |
| 63 | Nora A Connery | 33 | Wife-H | — | Ireland Free State |
| 64 | Alice Connery | 5 | Daughter | — | Illinois |
| 65 | Stephen Connery | 4 | Son | — | Illinois |
| 66 | Thomas Connery | 1 | Son | — | Illinois |
| 67 | Charles Hanson | 42 | Head | Stationary Engineer | Denmark |
| 68 | Agnes Hanson | 36 | Wife-H | — | Michigan |
| 69 | Axel Hanson | 17 | Son | Messenger | Illinois |
| 70 | Harry Hanson | 12 | Son | — | Illinois |
| 71 | Shirley Hanson | 5 | Daughter | — | Illinois |
| 72 | John Sullivan | 53 | Head | Cleaner & Dyer | Illinois |
| 73 | Sarah Sullivan | 50 | Wife-H | — | Illinois |
| 74 | Joseph Sullivan THIS PERSON | 24 | Son | — | Illinois |
| 75 | John Doyle | 35 | Head | Police Officer | Illinois |
| 76 | Ann Doyle | 29 | Wife-H | — | Illinois |
| 77 | Sidney J Flynn | 31 | Head | Electrician | Illinois |
| 78 | Celia Flynn | 31 | Wife-H | — | Illinois |
| 79 | Robert Jr Flynn | 5 | Son | — | Illinois |
| 80 | Morris Flynn | 24 | Brother | Salesman | Illinois |
| 81 | Cecelia Meagher | 50 | Mother-in-law | — | Illinois |
| 82 | Joseph J Shaploraty | 42 | Head | Stone Cutter | Russia |
| 83 | Nellie Shaploraty | 34 | Wife-H | — | Russia |
| 84 | Anna Shaploraty | 17 | Daughter | — | Vermont |
| 85 | Helen Shaploraty | 15 | Daughter | — | Colorado |
| 86 | Walter Shaploraty | 13 | Son | — | Illinois |
| 87 | Constant Shaploraty | 10 | Son | — | Illinois |
| 88 | Alice Shaploraty | 7 | Daughter | — | Illinois |
| 89 | George Shaploraty | 2 | Son | — | Illinois |
| 90 | Charles Fenbach | 42 | Head | Mail Carrier | New York |
| 91 | Mary Fenbach | 42 | Wife-H | — | Illinois |
| 92 | Elmer Henderson | 53 | Head | Tool Maker | Illinois |
| 93 | Mary Ann Henderson | 41 | Wife-H | — | Illinois |
| 94 | Dorothy Henderson | 17 | Daughter | — | Illinois |
| 95 | Elmer Jr Henderson | 15 | Son | Laborer | Illinois |
| 96 | John Hepburn | 36 | Head | Carpenter | Illinois |
| 97 | May Hepburn | 35 | Wife-H | — | Vermont |
| 98 | June Hepburn | 3 | Daughter | — | Illinois |
| 99 | John Malenta | 55 | Head | Laborer | Illinois |
| 100 | Louise Malenta | 52 | Wife-H | — | Illinois |
Pedigree Summary
Joseph
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)