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Frank Gardner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Gardner across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 8-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Gardner |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Berwyn |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | labor |
| Industry | building construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 416 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Labor |
| Township / Ward | Cicero |
| Est. Birth Year | ~1917 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| Stephen Gardner | Son | — | 25 | ~1915 |
| Anna Gardner | Daughter | — | 20 | ~1920 |
| Helen Gardner | Spouse | — | 61 | ~1879 |
| Johanna Gardner | Daughter | — | 25 | ~1915 |
| Paul Gardner | Son | — | 21 | ~1919 |
| Rosalia Gardner | Daughter | — | 17 | ~1923 |
| Frank Gardner | Son | — | 23 | ~1917 |
| Joseph Gardner | Head | — | 62 | ~1878 |
Census Appearances
1930
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1917 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 23
Cook-County, Illinois · implied b. ~1917 — 8 household members
| Surname | Gardner |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Berwyn |
| 1935 Residence (County) | Cook |
| Occupation | labor |
| Industry | building construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 416 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| 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 Frank Gardner across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Gardner
Son · 1940 · age 23 · b. ~1917 · Illinois
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Sibling
Stephen Gardner
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalia Gardner
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Gardner
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Gardner
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johanna Gardner
Sibling · 1940 · age 25
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
35 people indexed on this census page (nara:1940:m-t0627-00777-00559)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Albert Skala | 41 | Head | Machinist | Illinois |
| 42 | Lorraine Skala | 31 | Wife | — | Illinois |
| 43 | Laverne Skala | 9 | Daughter | — | Illinois |
| 44 | Arlene Skala | 6 | Daughter | — | Illinois |
| 45 | Minnie Mueller | 56 | Mother-in-law | — | Illinois |
| 46 | Edward Slama | 27 | Head | Labor | Illinois |
| 47 | Sylvia Slama | 26 | Wife | Color Card Mounter | Illinois |
| 48 | Olga Slama | 24 | Sister | Bench Hand | Illinois |
| 49 | Andrew Chaloupka | 22 | Head | Layout Men | Illinois |
| 50 | Audrie Chaloupka | 21 | Wife | Operator | Illinois |
| 51 | Julia Lastovicka | 45 | Head | Ironer | Germany |
| 53 | Peter Halbur | 67 | Head | Salesman | Italy |
| 54 | Angela Halbur | 66 | Wife | — | Italy |
| 59 | Virgil Williamson | 43 | Head | Night Watchman | Illinois |
| 60 | Hazel Williamson | 37 | Wife | — | Illinois |
| 61 | Henry Williamson | 19 | Son | — | Illinois |
| 62 | John Skender | 48 | Head | Stationary Engineer | Yugoslavia |
| 63 | Helen Skender | 39 | Wife | — | Illinois |
| 64 | Virginia Skender | 20 | Daughter | Switchboard Operator | Illinois |
| 65 | Eleanor Skender | 18 | Daughter | — | Illinois |
| 66 | John Skender | 17 | Son | Pin Boy | Illinois |
| 67 | George Skender | 9 | Son | — | Illinois |
| 68 | Joseph Gardner | 62 | Head | Bricklayer | Czechoslovakia |
| 69 | Helen Gardner | 61 | Wife | — | Austria |
| 70 | Stephen Gardner | 25 | Son | Maintenance Man | Illinois |
| 71 | Johanna Gardner | 25 | Daughter | Operator | Illinois |
| 72 | Frank Gardner THIS PERSON | 23 | Son | Labor | Illinois |
| 73 | Paul Gardner | 21 | Son | Labor | Illinois |
| 74 | Anna Gardner | 20 | Daughter | Packing | Illinois |
| 75 | Rosalia Gardner | 17 | Daughter | — | Illinois |
| 76 | James Hodina | 46 | Head | Newspaper Deliverer | Illinois |
| 77 | Ellen Hodina | 50 | Wife | — | Illinois |
| 78 | Cecilia Hodina | 21 | Daughter | — | Illinois |
| 79 | Ben Homola | 41 | Head | Cabinet Maker | Czechoslovakia |
| 80 | Elsie Homola | 37 | Wife | Hand Sewing | 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)