JB
James Bush — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Bush across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Bush |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Michael Bush | Son | — | 1 | ~1939 |
| James Bush | Son | — | 13 | ~1927 |
| Theresa Bush | Daughter | — | 8 | ~1932 |
| Thomas Bush | Son | — | 11 | ~1929 |
| Joan Bush | Daughter | — | 6 | ~1934 |
| Thomas Bush | Head | — | 44 | ~1896 |
| Bernice Bush | Daughter | — | 10 | ~1930 |
| Mary Bush | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Busch |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 13
Cook-County, Illinois · implied b. ~1927 — 8 household members
| Surname | Bush |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | No 7 |
| 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 James Bush across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Bush
Son · 1940 · age 13 · b. ~1927 · Illinois
★ You are viewing this record
Sibling
Thomas Bush
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Bush
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Bush
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Bush
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Bush
Sibling · 1940 · age 10
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-t0627-00949-00821)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Mentzen | 45 | Head | Proprietor | Luxemburg |
| 2 | Marie Mentzen | 38 | Wife | Clerk | Belgium |
| 3 | George Mentzen | 14 | Son | — | Illinois |
| 4 | Raymond Mentzen | 5 | Son | — | Illinois |
| 5 | Mike Fallon | 68 | Head | — | Illinois |
| 6 | Delia Fallon | 67 | Wife | — | Illinois |
| 7 | John Walsh | 36 | Head | Laborer | Illinois |
| 8 | Opal Walsh | 33 | Wife | — | Iowa |
| 9 | Margaret Walsh | 8 | Daughter | — | Illinois |
| 10 | Robert Walsh | 4 | Son | — | Illinois |
| 11 | Gerald Walsh | 1 | Son | — | Illinois |
| 12 | Charles Walsh | 1 | Son | — | Illinois |
| 13 | Emily Tvilitski | 50 | Head | Paper Binder | Lithuania |
| 14 | Joseph Tvilitski | 22 | Son | Freight Handler | Illinois |
| 15 | Julia Tvilitski | 17 | Daughter | — | Illinois |
| 16 | Emma Tvilitski | 16 | Daughter | — | Illinois |
| 17 | Richard Cox | 39 | Head | Laborer | Irish Free State |
| 18 | Helen Cox | 37 | Wife | — | Irish Free State |
| 19 | Helen Cox | 12 | Daughter | — | Illinois |
| 20 | Mary Cox | 10 | Daughter | — | Illinois |
| 21 | Frances Cox | 8 | Daughter | — | Illinois |
| 22 | Mildred Cox | 6 | Daughter | — | Illinois |
| 23 | Kathleen Cox | 4 | Daughter | — | Illinois |
| 24 | Regina Cox | 1 | Daughter | — | Illinois |
| 25 | Richard Black | 39 | Head | Laborer | Illinois |
| 26 | Elizabeth Black | 39 | Wife | — | Illinois |
| 27 | Thomas Bush | 44 | Head | Laborer | Irish Free State |
| 28 | Mary Bush | 42 | Wife | — | Irish Free State |
| 29 | James Bush THIS PERSON | 13 | Son | — | Illinois |
| 30 | Thomas Bush | 11 | Son | — | Illinois |
| 31 | Bernice Bush | 10 | Daughter | — | Illinois |
| 32 | Theresa Bush | 8 | Daughter | — | Illinois |
| 33 | Joan Bush | 6 | Daughter | — | Illinois |
| 34 | Michael Bush | 1 | Son | — | Illinois |
| 35 | — | None | — | — | — |
| 36 | John Markunas | 54 | Head | — | Lithuania |
| 37 | Mary Markunas | 45 | Wife | — | Lithuania |
| 38 | Alice Markunas | 20 | Daughter | Press Feeder | Illinois |
| 39 | Vito Markunas | 19 | Son | Millwright | Illinois |
| 40 | William Hopley | 35 | Head | Die Setter | New York |
Related Census Records
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)