KS
Katherine Sullivan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Katherine Sullivan across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Patrick & Thomas — first a daughter (b.~1910), then head of a 7-person household.
Age 20
b. ~1910
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Sullivan |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| 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 | Leyden Township |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Gerald Sullivan | Son | — | 27 | ~1903 |
| Thomas Sullivan | Head | — | 52 | ~1878 |
| Hannah Sullivan | Spouse | — | 52 | ~1878 |
| Katherine Sullivan | Daughter | — | 20 | ~1910 |
| David Sullivan | Son | — | 18 | ~1912 |
| Hannah Sullivan | Daughter | — | 30 | ~1900 |
| Lawrence Sullivan | Son | — | 23 | ~1907 |
Census Appearances
1910
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Katharine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| 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
Daughter, age 10
Cook, Illinois · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Kathryn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 20
Cook, Illinois · implied b. ~1910 — 7 household members
| Surname | Sullivan |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| 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 Katherine Sullivan across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Patrick Sullivan (~0.92 confidence) and father Thomas Sullivan (~0.92 confidence) and father William Sullivan (~0.92 confidence) and mother Della Sullivan (~0.92 confidence) and mother Hannah Sullivan (~0.92 confidence) and mother Nellie Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Sullivan
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Thomas Sullivan
b. ~1878
Source father
● Household
· direct · ~0.92
Father
William Sullivan
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Della Sullivan
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Hannah Sullivan
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Nellie Sullivan
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Sullivan
Daughter · 1930 · age 20 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
David Sullivan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Sullivan
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hannah Sullivan
Sibling · 1930 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Sullivan
Sibling · 1930 · age 23
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
49 people indexed on this census page (ia:1930:illinoiscensus00reel568:0156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Sullivan | 52 | Head | — | Illinois |
| 2 | Hannah Sullivan | 52 | Wife | — | Illinois |
| 3 | Hannah Sullivan | 30 | Daughter | — | Illinois |
| 4 | Gerald Sullivan | 27 | Son | — | Illinois |
| 5 | Lawrence Sullivan | 23 | Son | — | Illinois |
| 6 | Katherine Sullivan THIS PERSON | 20 | Daughter | — | Illinois |
| 7 | David Sullivan | 18 | Son | — | Illinois |
| 8 | David Peterson | 55 | Head | — | Illinois |
| 9 | Frances Peterson | 55 | Wife | — | Illinois |
| 10 | George Peterson | 13 | Son | — | Illinois |
| 11 | Lucy Peterson | 10 | Daughter | — | Illinois |
| 12 | Richard Peterson | 8 | Son | — | Illinois |
| 13 | Mathilda Williams | 63 | Head | — | Sweden |
| 14 | William Canfield | 43 | Head | Drill Press | England |
| 15 | Clara Canfield | 43 | Wife | — | England |
| 16 | James Canfield | 16 | Son | — | England |
| 17 | William Jr. Canfield | 14 | Son | — | England |
| 18 | Arthur H. Deutsch | 46 | Head | Peddler | Russia |
| 19 | Rose Deutsch | 39 | Wife | — | Russia |
| 20 | Morris Deutsch | 13 | Son | — | Illinois |
| 21 | Hannah Deutsch | 10 | Daughter | — | Illinois |
| 22 | John Clayton | 52 | Head | — | England |
| 23 | Hannah Clayton | 53 | Wife | — | England |
| 24 | Audrey Clayton | 25 | Daughter | — | Illinois |
| 25 | Ralph Lehin | 25 | Head | — | Illinois |
| 26 | Agnes Lehin | 26 | Wife | — | Illinois |
| 27 | William Olson | 29 | Head | — | Illinois |
| 28 | Agnes Olson | 28 | Wife | — | Illinois |
| 29 | William Jr. Olson | 4 | Son | — | Illinois |
| 30 | Albert Raczhowski | 71 | Head | — | Poland |
| 31 | Mary Raczhowski | 71 | Wife | — | Poland |
| 32 | Hattie Raczhowski | 32 | Daughter | — | Illinois |
| 33 | Eugene Labreege | 32 | Head | — | Illinois |
| 34 | Dorothy Labreege | 23 | Wife | — | Illinois |
| 35 | Charles Walter | 37 | Head | — | Illinois |
| 36 | Bernice Walter | 40 | Wife | — | Illinois |
| 37 | Albert Gabor | 32 | Head | — | Illinois |
| 38 | Ethel Gabor | 25 | Wife | — | Illinois |
| 39 | Jacque R. Gabor | 2 | Son | — | Illinois |
| 40 | August Berlin | 25 | Head | — | Illinois |
| 41 | Christine Berlin | 27 | Wife | — | Illinois |
| 42 | Donald Berlin | 6 | Son | — | Illinois |
| 43 | Charles Lundin | 65 | Head | — | Sweden |
| 44 | Emma Lundin | 65 | Wife | — | Sweden |
| 45 | Charles Lundin | 22 | Son | — | Illinois |
| 46 | John Gorgelin | 39 | Head | — | Illinois |
| 47 | Esther Gorgelin | 36 | Wife | — | Illinois |
| 48 | Emily Ann Gorgelin | 13 | Daughter | — | Illinois |
| 49 | Carl O. Gorgelin | 8 | Son | — | Illinois |
Pedigree Summary
Katherine + 4 siblings
Gen 1 · 6 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)