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Catherine Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Catherine Sullivan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Daniel & Catherine — first a daughter (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sullivan |
| Given Name | Catherine E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | typist |
| Industry | insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1047 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Typist |
| Township / Ward | Chicago |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Catherine Sullivan | Daughter | — | 29 | ~1911 |
| Dorothy Sullivan | Daughter | — | 22 | ~1918 |
| Daniel Sullivan | Head | — | 64 | ~1876 |
| Catherine Sullivan | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Cook, Illinois
Other, age 9
Cook, Illinois · implied b. ~1911 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Catherine |
| Relationship to Head | granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| 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
Other, age 18
Cook, Illinois · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Catherine |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Switchboard Operator |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 29
Cook-County, Illinois · implied b. ~1911 — 4 household members
| Surname | Sullivan |
| Given Name | Catherine E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | typist |
| Industry | insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1047 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| 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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Daniel Sullivan (~0.92 confidence) and mother Catherine Sullivan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Sullivan
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Catherine Sullivan
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Sullivan
Daughter · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Sibling
Dorothy Sullivan
Sibling · 1940 · 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
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01020-00713)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sam Salomon | 26 | Head | Adviser | Missouri |
| 2 | Janet Salomon | 26 | Wife | — | Illinois |
| 3 | Louis S. Fontaine | 49 | Head | Bricklayer | Minnesota |
| 4 | Artheline Thibodeau | 69 | Mother | — | Canada-French |
| 5 | Raymond A. Lange | 35 | Head | Postal Clerk | Illinois |
| 6 | Ann S. Lange | 28 | Wife | — | Illinois |
| 7 | Theresa M. Lange | 8 | Daughter | — | Illinois |
| 8 | Arthur R. Lange | 6 | Son | — | Illinois |
| 9 | Roseann Lange | 1 | Daughter | — | Illinois |
| 10 | Solomon Kodish | 41 | Head | Naturopath | Illinois |
| 11 | Edith Kodish | 41 | Wife | Assistant | Illinois |
| 12 | Ellen Y. Kodish | 12 | Daughter | — | Illinois |
| 13 | Rhoda L. Kodish | 7 | Daughter | — | Illinois |
| 14 | Samuel Kodish | 48 | Brother | Deliveryman | Austria |
| 15 | Reginald F. Wells | 39 | Head | Painter | England |
| 16 | Louise F. Wells | 38 | Wife | — | England |
| 17 | Reginald Lee Wells | 13 | Son | — | Illinois |
| 18 | Martin J. Fendlon | 50 | Head | Salesman | Irish Free State |
| 19 | Catherine Fendlon | 49 | Wife | — | Irish Free State |
| 20 | John P. Fendlon | 22 | Son | Typist | Illinois |
| 21 | Catherine L. Fendlon | 20 | Daughter | Stenographer | Illinois |
| 22 | Martin Fendlon | 17 | Son | Delivery Boy | Illinois |
| 23 | Irene Fendlon | 14 | Daughter | — | Illinois |
| 24 | Mary Fendlon | 13 | Daughter | — | Illinois |
| 25 | Leroy J. Wilkins | 61 | Head | Statistician | Iowa |
| 26 | Kathleen Wilkins | 59 | Wife | — | Iowa |
| 27 | Frances M. Wilkins | 32 | Daughter | Teacher | Iowa |
| 28 | Daniel J. Sullivan | 64 | Head | General Bookkeeper | Illinois |
| 29 | Catherine T. Sullivan | 54 | Wife | — | Illinois |
| 30 | Catherine E. Sullivan THIS PERSON | 29 | Daughter | Typist | Illinois |
| 31 | Dorothy M. Sullivan | 22 | Daughter | Stenographer | Illinois |
| 32 | Stephen A. Nesbitt | 37 | Head | Mechanic Owner | Kansas |
| 33 | Alberta P. Nesbitt | 29 | Wife | — | Pennsylvania |
| 34 | Frances E. Nesbitt | 3 | Daughter | — | New York |
| 35 | William M. Nesbitt | 0 | Son | — | Illinois |
| 36 | Charles G. Baskes | 33 | Head | Pharmacist Owner | Illinois |
| 37 | Fae Baskes | 31 | Wife | — | Poland |
| 38 | Myra F. Baskes | 8 | Daughter | — | Illinois |
| 39 | Barbara A. Baskes | 3 | Daughter | — | Illinois |
| 40 | Albert A. Lausch | 32 | Head | Bookkeeper | Illinois |
Pedigree Summary
Catherine + 1 sibling
Gen 1 · 2 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)