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Catherine Sullivan — 1920 US Census Record
Model Tree available1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Catherine Sullivan across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Cornelius & Florence — first a daughter (b.~1894), then head of a 6-person household.
Age 26
b. ~1894
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Sullivan |
| Given Name | Catherine C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Clerk |
| Industry | Office Dept |
| 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 |
| Occupation | Clerk |
| Township / Ward | Chicago |
| Est. Birth Year | ~1894 |
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 1920 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Theresa Sullivan | Daughter | — | 24 | ~1896 |
| Catherine Sullivan | Daughter | — | 26 | ~1894 |
| Daniel Sullivan | Head | — | 61 | ~1859 |
| Edward Sullivan | Other | — | 6 | ~1914 |
| Joseph Sullivan | Son | — | 22 | ~1898 |
| Mary Sullivan | Spouse | — | 56 | ~1864 |
Census Appearances
1900
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Birth Month | July |
| Birth Year | 1895 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Cook, Illinois
Daughter, age 16
Cook, Illinois · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 26
Cook, Illinois · implied b. ~1894 — 6 household members
| Surname | Sullivan |
| Given Name | Catherine C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Office Dept |
| 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 |
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 Catherine Sullivan across 3 US Census years (1900, 1910 and 1920) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Cornelius Sullivan (~0.92 confidence) and mother Florence Sullivan (~0.92 confidence) and father Daniel Sullivan (~0.92 confidence) and mother Nellie Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cornelius Sullivan
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Florence Sullivan
b. ~1858
Source mother
● Household
· direct · ~0.92
Father
Daniel Sullivan
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Nellie Sullivan
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Sullivan
Daughter · 1920 · age 26 · b. ~1894 · Illinois
★ You are viewing this record
Sibling
Theresa Sullivan
Sibling · 1920 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Sullivan
Sibling · 1920 · age 22
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
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu347unit:0450)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel Sullivan | 61 | Head | Laborer | Ireland |
| 2 | Mary A Sullivan | 56 | Wife | — | Ireland |
| 3 | Catherine C Sullivan THIS PERSON | 26 | Daughter | Clerk | Illinois |
| 4 | Theresa B Sullivan | 24 | Daughter | Telephone Op | Illinois |
| 5 | Joseph D Sullivan | 22 | Son | Collector | Illinois |
| 6 | Edward J Sullivan | 6 | Grandson | — | Illinois |
| 7 | James E Geary | 41 | Head | Policeman | England |
| 8 | Annie Geary | 40 | Wife | — | England |
| 9 | Mary E Geary | 14 | Daughter | — | Pennsylvania |
| 10 | Martha V Geary | 13 | Daughter | — | Illinois |
| 11 | Alice M Geary | 11 | Daughter | — | Illinois |
| 12 | Thomas Geary | 10 | Son | — | Illinois |
| 13 | Michael Geary | 9 | Son | — | Illinois |
| 14 | Edward Geary | 6 | Son | — | Illinois |
| 15 | Frances Geary | 5 | Daughter | — | Illinois |
| 16 | Eleanor Geary | 3 | Daughter | — | Illinois |
| 17 | James Geary | 1 | Son | — | Illinois |
| 18 | Harry L Retter | 29 | Head | Salesman | Illinois |
| 19 | Ada L Retter | 28 | Wife | — | Germany |
| 20 | Regina Loreman | 68 | Mother-in-law | Midwife | Germany |
| 21 | Richard J Owen | 60 | Head | Agent | Wales |
| 22 | Catherine Owen | 54 | Wife | — | Wales |
| 23 | Richard H Owen | 26 | Son | Clerk | Illinois |
| 24 | John W Owen | 24 | Son | Clerk | Illinois |
| 25 | Adam Russell | 45 | Head | Helper | Russia |
| 26 | Dora Russell | 36 | Wife | — | Russia |
| 27 | Anna Russell | 10 | Daughter | — | Illinois |
| 28 | Agnes Russell | 9 | Daughter | — | Illinois |
| 29 | John Anazas | 32 | Boarder | Laborer | Russia |
| 30 | John Makins | 32 | Boarder | Laborer | Russia |
| 31 | Chas O Holly | 29 | Head | Clerk | Illinois |
| 32 | Martha F Holly | 31 | Wife | — | Illinois |
| 33 | Chas F Holly | 4 | Son | — | Illinois |
| 34 | Alfreda Nagel | 34 | Head | Laborer | Germany |
| 35 | Louise A Nagel | 33 | Wife | — | Illinois |
| 36 | John J Mcnamara | 55 | Head | Night Watchman | Ireland |
| 37 | Delia Mcnamara | 50 | Wife | — | Ireland |
| 38 | Margaret H Mcnamara | 26 | Daughter | Stenographer | Illinois |
| 39 | John P Mcnamara | 23 | Son | — | Illinois |
| 40 | John P Gill | 43 | Head | Steamfitter | Ireland |
| 41 | Marion A Gill | 35 | Wife | — | Wisconsin |
| 42 | Cecelia E Hennessy | 67 | Head | — | Ireland |
| 43 | James O Hennessy | 34 | Son | Clerk | Canada |
| 44 | John J Finnegan | 31 | Head | Chauffeur | Ireland |
| 45 | Mary Finnegan | 28 | Wife | — | Ireland |
| 46 | John J Jr Finnegan | 4 | Son | — | Illinois |
| 47 | Thomas J R Finnegan | 2 | Son | — | Illinois |
| 48 | Michael R Finnegan | 1 | Son | — | Illinois |
| 49 | Albert Burkhart | 46 | Head | Machinist | Illinois |
| 50 | Margaret Burkhart | 38 | Wife | — | Germany |
Pedigree Summary
Catherine + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)