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Frank Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Johnston across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnston |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Village of Posen |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | No |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Village Of Posen |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Mertie Johnston | Spouse | — | 48 | ~1892 |
| John Johnston | Son | — | 15 | ~1925 |
| William Johnston | Son | — | 27 | ~1913 |
| John Johnston | Head | — | 50 | ~1890 |
| Frank Johnston | Son | — | 16 | ~1924 |
| Robert Johnston | Son | — | 11 | ~1929 |
| Olive Johnston | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Frank |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | New York |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 16
Cook-County, Illinois · implied b. ~1924 — 7 household members
| Surname | Johnston |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Village of Posen |
| 1935 Residence (County) | Cook |
| Class of Worker | No |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| 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 Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Johnston
Son · 1940 · age 16 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
John Johnston
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Johnston
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Olive Johnston
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Johnston
Sibling · 1940 · age 11
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-t0627-00775-00903)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Briney | 17 | Son | Section Worker | Illinois |
| 2 | Wayne Briney | 15 | Son | — | Illinois |
| 3 | Iris Briney | 13 | Daughter | — | Illinois |
| 4 | Daniel Briney | 11 | Son | — | Illinois |
| 5 | Laurel Briney | 10 | Daughter | — | Illinois |
| 6 | Leslie Barger | 28 | Head | Steel Worker | Illinois |
| 7 | Adeline Barger | 29 | Wife | — | Illinois |
| 8 | Charles Barger | 1 | Son | — | Illinois |
| 9 | Otto Lenover | 57 | Head | Loc. Engineer | Indiana |
| 10 | Bessie Lenover | 59 | Wife | — | Indiana |
| 11 | Ralph Lenover | 19 | Son | — | Illinois |
| 12 | Clarence Strucklee | 54 | Head | Coal Dock Foreman | Illinois |
| 13 | Mary Strucklee | 50 | Wife | — | Wisconsin |
| 14 | Dorothy Strucklee | 29 | Daughter | Telephone Supervisor | Illinois |
| 15 | John Johnston | 50 | Head | Service Man | Kentucky |
| 16 | Mertie Johnston | 48 | Wife | — | Kentucky |
| 17 | William Johnston | 27 | Son | Assembler | Kentucky |
| 18 | Olive Johnston | 19 | Daughter | — | Kentucky |
| 19 | Frank Johnston THIS PERSON | 16 | Son | — | Illinois |
| 20 | John Jr. Johnston | 15 | Son | — | Illinois |
| 21 | Robert Johnston | 11 | Son | — | Illinois |
| 22 | Benjamin Braselton | 46 | Head | Laborer | Illinois |
| 23 | Alice Braselton | 41 | Wife | — | Illinois |
| 24 | Verlow Braselton | 17 | Son | — | Illinois |
| 25 | Eileen Braselton | 14 | Daughter | — | Illinois |
| 26 | Arnold Braselton | 7 | Son | — | Illinois |
| 27 | Anthony Salerno | 44 | Head | Laborer | Italy |
| 28 | Rose Salerno | 35 | Wife | — | Italy |
| 29 | Dominick Salerno | 17 | Son | — | Illinois |
| 30 | Phyllis Salerno | 15 | Daughter | — | Illinois |
| 31 | Joseph Valpendersta | 47 | Head | Laborer | Italy |
| 32 | Stephina Valpendersta | 40 | Wife | — | Illinois |
| 33 | Helen Valpendersta | 19 | Daughter | — | Illinois |
| 34 | Carrol Valpendersta | 15 | Son | — | Illinois |
| 35 | Theresa Valpendersta | 13 | Daughter | — | Illinois |
| 36 | Marie Valpendersta | 11 | Daughter | — | Illinois |
| 37 | Lucy Valpendersta | 7 | Daughter | — | Illinois |
| 38 | Arturo Vesoni | 45 | Head | Janitor | Italy |
| 39 | Catherine Vesoni | 36 | Wife | — | Canada |
| 40 | Marie Vesoni | 17 | Daughter | — | 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)