RS
Richard Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Richard Sullivan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sullivan |
| Given Name | Richard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Janitor |
| Industry | School Bldg |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1860 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Janitor |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| John Sullivan | Son | — | 4 | ~1936 |
| Richard Sullivan | Head | — | 33 | ~1907 |
| Sarah Sullivan | Spouse | — | 28 | ~1912 |
| Shirley Sullivan | Daughter | — | 8 | ~1932 |
| Catherine Sullivan | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 24
Cook, Illinois · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerkman |
| Industry | Com. Ed. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 33
Cook-County, Illinois · implied b. ~1907 — 5 household members
| Surname | Sullivan |
| Given Name | Richard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Janitor |
| Industry | School Bldg |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1860 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| 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 Richard Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Sullivan (~0.92 confidence) and father Patrick Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Sullivan
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Patrick Sullivan
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Sullivan
Head · 1940 · age 33 · b. ~1907 · 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-t0627-00952-00477)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Jacobs | 21 | Son | Attendant | Illinois |
| 42 | Jesse Jacobs | 14 | Son | — | Indiana |
| 43 | Dorothy Meade | 32 | Daughter | Office | Illinois |
| 44 | Art Durin | 20 | Lodger | Laboratory | Illinois |
| 45 | Arthur Gray | 32 | Brother | Laborer | Indiana |
| 46 | Charles Curry | 60 | Head | Machinist | Vermont |
| 47 | Mabelle Curry | 58 | Wife | — | Canada-Fr |
| 48 | Thomas Carroll | 56 | Head | Salesman | Illinois |
| 49 | Julia Carroll | 51 | Wife | Dishwasher | Illinois |
| 50 | Gene Carroll | 16 | Son | — | Illinois |
| 51 | William Hayden | 23 | Cousin | Clerk | Kentucky |
| 52 | Richard Sullivan THIS PERSON | 33 | Head | Janitor | Illinois |
| 53 | Sarah Sullivan | 28 | Wife | — | Illinois |
| 54 | Catherine Sullivan | 10 | Daughter | — | Illinois |
| 55 | Shirley M. Sullivan | 8 | Daughter | — | Illinois |
| 56 | John Sullivan | 4 | Son | — | Illinois |
| 57 | Winnifred Delave | 32 | Head | Secretary | Illinois |
| 58 | Daniel Delave | 11 | Son | — | Illinois |
| 59 | Donald Delave | 9 | Son | — | Illinois |
| 60 | Marietta Finch | 59 | Housekeeper | — | Illinois |
| 61 | John Brogan | 24 | Head | Bookkeeper | Illinois |
| 62 | Harriett Brogan | 23 | Wife | Bookkeeper | Illinois |
| 63 | Margaret Frost | 48 | Mother | Bookkeeper | Illinois |
| 64 | Charles Cameron | 45 | Head | Draftsman | Illinois |
| 65 | Pearl Cameron | 44 | Wife | — | Illinois |
| 66 | James Sullivan | 55 | Head | Clerk | Illinois |
| 67 | Marion Sullivan | 49 | Wife | — | Illinois |
| 68 | Margaret Sullivan | 29 | Daughter | Secretary | Illinois |
| 69 | Camilla J. Sullivan | 21 | Daughter | Stenographer | Illinois |
| 70 | Werner Stoby | 37 | Head | Carpenter | Sweden |
| 71 | Anne Stoby | 37 | Wife | Gen. Office | Germany |
| 72 | David Deitshman | 51 | Head | Salesman | Russia |
| 73 | Dora Deitshman | 45 | Wife | — | Russia |
| 74 | Morris Deitshman | 28 | Son | Proprietor | Illinois |
| 75 | Rose Deitshman | 20 | Daughter | New Worker | Illinois |
| 76 | Ben Gordon | 29 | Son-in-law | Driver | Illinois |
| 77 | Ethel Gordon | 23 | Daughter | — | Illinois |
| 78 | Michael Voblik | 58 | Head | Laborer | Czechoslovakia |
| 79 | Betty Voblik | 22 | Daughter | Stenographer | Illinois |
| 80 | Mary Steir | 42 | Head | Bookkeeper | Illinois |
Pedigree Summary
Richard
Gen 1 · 3 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)