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Jeremiah Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Jeremiah Sullivan across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sullivan |
| Given Name | Jeremiah J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Machinist |
| Industry | Printing Presses |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Machinist |
| Township / Ward | Chicago |
| Est. Birth Year | ~1878 |
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 1940 census.
| Name | Relation to head | Relative to Jeremiah | Age | Birth yr |
|---|---|---|---|---|
| Jeremiah Sullivan | Head | — | 62 | ~1878 |
| Ella Sullivan | Daughter | — | 35 | ~1905 |
| Mary Sullivan | Spouse | — | 60 | ~1880 |
Census Appearances
1910
Cook, Illinois
Head, age 31
Cook, Illinois · implied b. ~1879 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Jeremiah |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| Years Married | 6 |
| Father's Birthplace | Ire-English |
| Mother's Birthplace | New York |
| Occupation | Machinist |
| Industry | Foundry |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Cook, Illinois
Head, age 40
Cook, Illinois · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Jeremiah |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Widowed |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | Machinist |
| Industry | Printing Press |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Cook, Illinois
Head, age 51
Cook, Illinois · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Jeremiah |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | Machinist |
| Industry | Printing Press Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | No |
| Veteran | 7500 |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Cook-County, Illinois
Head, age 62
Cook-County, Illinois · implied b. ~1878 — 3 household members
| Surname | Sullivan |
| Given Name | Jeremiah J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Machinist |
| Industry | Printing Presses |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Jeremiah Sullivan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jeremiah Sullivan
Head · 1940 · age 62 · b. ~1878 · Illinois
★ You are viewing this record
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-t0627-00955-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret M | 15 | Daughter | Waitress | Illinois |
| 42 | Joseph E Gatton | 29 | Head | Chauffeur | Illinois |
| 43 | Christine Gatton | 31 | Wife | — | Illinois |
| 44 | Edward J Gatton | 6 | Son | — | Illinois |
| 45 | Martin N Gatton | 5 | Son | — | Illinois |
| 46 | Gerard T Gatton | 1 | Son | — | Illinois |
| 47 | Irene F Gatton | 0 | Daughter | — | Illinois |
| 48 | Jeremiah J Sullivan THIS PERSON | 62 | Head | Machinist | New York |
| 49 | Mary Sullivan | 60 | Wife | — | Ireland |
| 50 | Ella Sullivan | 35 | Daughter | Biller | Illinois |
| 51 | Cyrus R Dixon | 35 | Head | Plumber | Illinois |
| 52 | Margaret J Dixon | 33 | Wife | — | Illinois |
| 53 | Patricia M Dixon | 9 | Daughter | — | Illinois |
| 54 | Margaret M Dixon | 1 | Daughter | — | Illinois |
| 55 | Richard C Dixon | 1 | Son | — | Illinois |
| 56 | Axel K Farren | 66 | Head | Pattern Maker | Sweden |
| 57 | Ruth S Farren | 36 | Daughter | Teacher | Illinois |
| 58 | Charles Hess | 63 | Head | Mechanic | Germany |
| 59 | Anna Hess | 62 | Wife | — | Canada English |
| 60 | Grace Hess | 37 | Daughter | — | Illinois |
| 61 | John J Daly | 38 | Brother in Law | — | Canada English |
| 62 | William Daly | 53 | Brother in Law | — | Canada English |
| 63 | James M Jung | 65 | Head | — | Illinois |
| 64 | Edna E Jung | 30 | Daughter | Book-Keeper | Illinois |
| 65 | This Ends | None | Block | — | — |
| 66 | Charles K Jackson | 40 | Head | V.P. Salesman | Illinois |
| 67 | Ruth Jackson | 40 | Wife | — | Illinois |
| 68 | Arthur W Jackson | 21 | Son | Book-Keeper | Illinois |
| 69 | Robert Allen | 65 | Lodger | Janitor | Scotland |
| 70 | Lloyd V Eagan | 51 | Lodger | Elev. Oper. | Illinois |
| 71 | Ellsworth W Brown | 41 | Head | Civil Engineer | New York |
| 72 | Viola B Brown | 34 | Wife | — | Missouri |
| 73 | Viola M Brown | 12 | Daughter | — | Illinois |
| 74 | Marcus J Brown | 74 | Father | — | Texas |
| 75 | Lambert G Thelan | 54 | Head | Manager | Illinois |
| 76 | Alice E Thelan | 34 | Wife | — | Illinois |
| 77 | Paul Menninger | 61 | Lodger | Die Maker | Pennsylvania |
| 78 | Lawrence Parker | 65 | Head | Salesman | Vermont |
| 79 | Catherine Parker | 53 | Wife | — | Illinois |
| 80 | Theresa A Phillips | 58 | Head | — | 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)