ES
Ellen Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ellen Sullivan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1875 |
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 Ellen | Age | Birth yr |
|---|---|---|---|---|
| Ellen Sullivan | Spouse | — | 65 | ~1875 |
| John Driscoll | Son | — | 12 | ~1928 |
| John Sullivan | Head | — | 69 | ~1871 |
| Ann Driscoll | Daughter | — | 39 | ~1901 |
Census Appearances
1920
Cook, Illinois
Spouse, age 45
Cook, Illinois · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Eng |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Other, age 55
Cook, Illinois · implied b. ~1875 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Spouse, age 65
Cook-County, Illinois · implied b. ~1875 — 4 household members
| Surname | Sullivan |
| Given Name | Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Ellen Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ellen Sullivan
Spouse · 1940 · age 65 · b. ~1875 · Illinois
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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-t0627-00938-00279)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Phillip J. Gleason | 11 | Son | — | Illinois |
| 42 | Henry T. Galbreath | 43 | Head | Legal - Tax | Missouri |
| 43 | Margaret Galbreath | 46 | Wife | — | Iowa |
| 44 | Thomas Galbreath | 15 | Son | — | Iowa |
| 45 | Mary Ann Galbreath | 10 | Daughter | — | Iowa |
| 46 | John H. Galbreath | 11 | Son | — | Iowa |
| 47 | Margaret J. Galbreath | 9 | Daughter | — | Iowa |
| 48 | Susan Galbreath | 4 | Daughter | — | Iowa |
| 49 | John C. Hirschfeld | 37 | Head | Attorney | Illinois |
| 50 | Margaret Hirschfeld | 38 | Wife | — | Illinois |
| 51 | Zoe Hirschfeld | 10 | Daughter | — | Illinois |
| 52 | John Jr. Hirschfeld | 2 | Son | — | Illinois |
| 53 | Mary Pepe | 20 | Maid | Servant | Indiana |
| 54 | Alfred Pettengell | 49 | Head | — | England |
| 55 | Isabel Pettengell | 46 | Wife | — | Illinois |
| 56 | Alfred Jr. Pettengell | 9 | Son | — | Illinois |
| 57 | Harvey V. Boggs | 41 | Head | Salesman | Indiana |
| 58 | Velma S. Boggs | 34 | Wife | Processor Clerk | Ohio |
| 59 | Charles F. Clark | 39 | Head | Assist. Manager | Iowa |
| 60 | Jane W. Clark | 39 | Wife | — | Indiana |
| 61 | Jackey C. Rose | 33 | Head | Bartender | Illinois |
| 62 | Josephine Rose | 27 | Wife | — | Ireland |
| 63 | V. Wayne Barber | 29 | Head | Draftsman | Indiana |
| 64 | Cordelia Barber | 28 | Wife | — | Florida |
| 65 | Richard Barber | 12 | Son | — | Illinois |
| 66 | John Sullivan | 69 | Head | Street Car Conductor | Ireland |
| 67 | Ellen Sullivan THIS PERSON | 65 | Wife | — | Ireland |
| 68 | Ann Driscoll | 39 | Daughter | Telegraph Operator | Ireland |
| 69 | John Brandon Driscoll | 12 | Son | — | Illinois |
| 70 | Charles L. Girsch | 55 | Head | Auditor | Illinois |
| 71 | Margaret Girsch | 59 | Wife | — | Wisconsin |
| 72 | Leo H. Kelley | 35 | Head | Salesman | Indiana |
| 73 | Sara L. Kelley | 37 | Wife | — | Indiana |
| 74 | Richard Faris | 34 | Head | Salesman | Texas |
| 75 | Freda Faris | 34 | Wife | Stenographer | Illinois |
| 76 | Paul Cardinal | 61 | Head | Janitor | Belgium |
| 77 | Alvera Cardinal | 49 | Wife | — | Belgium |
| 78 | Emma Cardinal | 17 | Daughter | New Worker | Illinois |
| 79 | Carl Cardinal | 14 | Son | — | Illinois |
| 80 | Bronislaw Ullrich | 37 | Head | Chief Engineer | New York |
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)