JG
John Gibbs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Gibbs across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 12-person household.
Age 17
b. ~1923
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Gibbs |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Chicago |
| Est. Birth Year | ~1923 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Sam Gray | Other | — | 66 | ~1874 |
| Mary Gibbs | Spouse | — | 45 | ~1895 |
| Wilma Gibbs | Daughter | — | 12 | ~1928 |
| James Gibbs | Son | — | 9 | ~1931 |
| Katherine Gibbs | Daughter | — | 19 | ~1921 |
| Gerald Gibbs | Son | — | 2 | ~1938 |
| Anna Gibbs | Daughter | — | 15 | ~1925 |
| William Gibbs | Head | — | 47 | ~1893 |
| Margaret Gibbs | Daughter | — | 7 | ~1933 |
| John Gibbs | Son | — | 17 | ~1923 |
| Mary Gibbs | Daughter | — | 21 | ~1919 |
| Jerome Gibbs | Son | — | 5 | ~1935 |
Census Appearances
1930
Cook, Illinois
Son, age 7
Cook, Illinois · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibbs |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Cook-County, Illinois
Son, age 17
Cook-County, Illinois · implied b. ~1923 — 12 household members
| Surname | Gibbs |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Gibbs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Gibbs
Son · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
James Gibbs
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Gibbs
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilma Gibbs
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Gibbs
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Gibbs
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Gibbs
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Gibbs
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Gibbs
Sibling · 1940 · age 19
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-t0627-00955-00969)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isabel Ledbetter | 40 | Housemaid | Housemaid | Tennessee |
| 2 | Neal Fitz Patrick | 6 | Son | — | Illinois |
| 3 | Edward A. Melske | 43 | Head | Motorman | Illinois |
| 4 | Ethel Melske | 34 | Wife | — | Illinois |
| 5 | Ethel Melske | 6 | Daughter | — | Illinois |
| 6 | Erwin Melske | 5 | Son | — | Illinois |
| 7 | David Alexander | 14 | Step-son | — | Illinois |
| 8 | Dorothy Alexander | 13 | Step-daughter | — | Illinois |
| 9 | Joseph Kirinicich | 41 | Head | Bleacher | Yugoslavia |
| 10 | Mattie Kirinicich | 38 | Wife | — | Yugoslavia |
| 11 | Joseph Kirinicich | 18 | Son | — | Yugoslavia |
| 12 | William R. Gibbs | 47 | Head | Boiler Operator | Indiana |
| 13 | Mary Gibbs | 45 | Wife | — | Kansas |
| 14 | Mary Elizabeth Gibbs | 21 | Daughter | Office Girl | Indiana |
| 15 | Katherine Gibbs | 19 | Daughter | — | Indiana |
| 16 | John Gibbs THIS PERSON | 17 | Son | — | Indiana |
| 17 | Anna Marie Gibbs | 15 | Daughter | — | Indiana |
| 18 | Wilma Gibbs | 12 | Daughter | — | Indiana |
| 19 | James Gibbs | 9 | Son | — | Illinois |
| 20 | Margaret Gibbs | 7 | Daughter | — | Illinois |
| 21 | Jerome Gibbs | 5 | Son | — | Illinois |
| 22 | Gerald Gibbs | 2 | Son | — | Illinois |
| 23 | Sam Gray | 66 | Lodger | — | Kentucky |
| 24 | Gertrude Dahleman | 50 | Head | — | Sweden |
| 25 | Herbert Johnson | 45 | Lodger | Carpenter | Sweden |
| 26 | William Graham | 32 | Lodger | Bartender | Wisconsin |
| 27 | Arthur Carlson | 35 | Lodger | Chauffeur | Sweden |
| 28 | Marjorie Schwering | 27 | Niece | Typist | Iowa |
| 29 | Henry H. Dough | 71 | Head | — | Illinois |
| 30 | Philomena Garcia | 23 | Wife | — | Puerto Rico |
| 31 | Stella Kewoke | 59 | Head | Evangelist | Ohio |
| 32 | Ira Hilliard | 64 | Partner | Broker | Indiana |
| 33 | George Lamb | 29 | Head | Serviceman | Kentucky |
| 34 | Geneva Lamb | 22 | Wife | — | Kentucky |
| 35 | Robert Dix | 59 | Head | Metal Worker | New Jersey |
| 36 | Charles Cook | 59 | Lodger | Laborer | Iowa |
| 37 | Elmer Jacobson | 42 | Head | Welding Machine | Illinois |
| 38 | Myra Jacobson | 32 | Wife | — | New York |
| 39 | William Snashall | 61 | Head | Locomotive Engineer | England |
| 40 | Lucille D. Snashall | 57 | Wife | — | Illinois |
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)