JC
John Carter — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Carter across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents William & Frank — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Carter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Clerk |
| Industry | Malleable Cast |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 1000 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1912 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mae Carter | Daughter | — | 26 | ~1914 |
| William Carter | Head | — | 65 | ~1875 |
| John Carter | Son | — | 28 | ~1912 |
| William Carter | Son | — | 20 | ~1920 |
| Margaret Carter | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carter |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 18
Cook, Illinois · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 28
Cook-County, Illinois · implied b. ~1912 — 5 household members
| Surname | Carter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Clerk |
| Industry | Malleable Cast |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 1000 |
| Highest Grade | Hs 2 |
| 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 John Carter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Carter (~0.92 confidence) and father Frank Carter (~0.92 confidence) and mother Margaret Carter (~0.92 confidence) and mother Marie Carter (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Carter
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Frank Carter
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Margaret Carter
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Marie Carter
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Carter
Son · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
William Carter
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mae Carter
Sibling · 1940 · age 26
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-t0627-00959-00148)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Wawrzonkowski | 57 | Head | Moulder | Poland |
| 42 | Clementine Wawrzonkowski | 55 | Wife | — | Poland |
| 43 | Walter Wawrzonkowski | 33 | Son | Moulder | Illinois |
| 44 | Bernard Wawrzonkowski | 31 | Son | Tailor | Illinois |
| 45 | Frances Wawrzonkowski | 26 | Daughter | Dress Maker | Illinois |
| 46 | Peter Kankiewicz | 26 | Head | Machinist | Poland |
| 47 | Camilla Kankiewicz | 24 | Wife | — | Poland |
| 48 | Frank Kankiewicz | 8 | Son | — | Illinois |
| 49 | Theresa Kankiewicz | 5 | Daughter | — | Illinois |
| 50 | Ignatius Szajina | 49 | Head | Furnace Tender | Poland |
| 51 | Mary Szajina | 44 | Wife | — | Poland |
| 52 | Stanley Szajina | 23 | Son | Stripper | Illinois |
| 53 | Julius Szajina | 22 | Son | Moulder | Illinois |
| 54 | Billy Szajina | 20 | Son | New Worker | Illinois |
| 55 | Helen Szajina | 18 | Daughter | New Worker | Illinois |
| 56 | Julia Szajina | 12 | Daughter | — | Illinois |
| 57 | Julian Ronda | 44 | Head | Brick Layer | Italy |
| 58 | Antonia Ronda | 34 | Wife | — | Italy |
| 59 | Rose Ronda | 13 | Daughter | — | Illinois |
| 60 | Jennie Ronda | 11 | Daughter | — | Illinois |
| 61 | Leo Ronda | 6 | Son | — | Illinois |
| 62 | William Carter | 65 | Head | Laborer | Illinois |
| 63 | Margaret Carter | 49 | Wife | — | Illinois |
| 64 | John Carter THIS PERSON | 28 | Son | Clerk | Illinois |
| 65 | Mae Carter | 26 | Daughter | — | Illinois |
| 66 | William Carter | 20 | Son | Machinist | Illinois |
| 67 | Thomas Smoter | 47 | Head | Carpenter | Poland |
| 68 | Agnes Smoter | 54 | Wife | — | Poland |
| 69 | Caroline Smoter | 22 | Daughter | Chamber Maid | Illinois |
| 70 | Helen Smoter | 20 | Daughter | Chamber Maid | Illinois |
| 71 | Thomas Smoter | 18 | Son | Laborer | Illinois |
| 72 | John Smoter | 14 | Son | — | Illinois |
| 73 | Alice Herlant | 43 | Head | Supply Room | Illinois |
| 74 | Paul Herlant | 19 | Son | New Worker | Illinois |
| 75 | John Herlant | 11 | Son | — | Illinois |
| 76 | James Boiz | 44 | Head | Moulder | Mexico |
| 77 | Vincent Boiz | 18 | Step-son | Laborer | Illinois |
| 78 | Mike Boiz | 14 | Step-son | New Worker | Illinois |
| 79 | Rudolph Boiz | 12 | Step-son | — | Illinois |
| 80 | Tony Boiz | 11 | Step-son | — | Illinois |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 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)