FS
Frank Stephens — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Stephens across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Stephens |
| Given Name | Frank Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Frank Stephens | Son | — | 15 | ~1925 |
| Mary Stephens | Daughter | — | 2 | ~1938 |
| Pearl Stephens | Spouse | — | 40 | ~1900 |
| James Stephens | Son | — | 8 | ~1932 |
| Robert Stephens | Son | — | 9 | ~1931 |
| Adelia Stephens | Daughter | — | 16 | ~1924 |
| Lillian Stephens | Daughter | — | 4 | ~1936 |
| Frank Stephens | Head | — | 47 | ~1893 |
| Richard Stephens | Son | — | 6 | ~1934 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Stephens |
| Given Name | Frank Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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 15
Cook-County, Illinois · implied b. ~1925 — 9 household members
| Surname | Stephens |
| Given Name | Frank Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 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 Frank Stephens across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Stephens
Son · 1940 · age 15 · b. ~1925 · Illinois
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Sibling
James Stephens
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Stephens
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Stephens
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adelia Stephens
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Stephens
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Stephens
Sibling · 1940 · age 6
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-t0627-00948-00263)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Irene Zoulek | 44 | Mother | Seamstress | Illinois |
| 42 | Louise Sherman | 75 | Mother | — | Illinois |
| 43 | Wesley Sherman | 21 | Cousin | Laborer | Illinois |
| 44 | Dominick Peccia | 34 | Head | Supt Of Beverages | Illinois |
| 45 | Helen Peccia | 31 | Wife | — | Illinois |
| 46 | Donald Peccia | 1 | Son | — | Illinois |
| 47 | Richard Brani | 48 | Head | Painter | Illinois |
| 48 | Mildred Brani | 35 | Wife | — | Illinois |
| 49 | Morris Guthans | 14 | Son | — | Illinois |
| 50 | George Jr. Stys | 46 | Head | Printer | Illinois |
| 51 | Ella Stys | 42 | Wife | Beautician | Illinois |
| 52 | Bernice Wallquist | 23 | Daughter | — | Illinois |
| 53 | Walter Wallquist | 23 | Son-in-law | Welder | Massachusetts |
| 54 | Isabel Robbins | 44 | Head | Foreman | Canada |
| 55 | Isabel Robbins | 32 | Wife | — | England |
| 56 | Roderick Robbins | 3 | Son | — | Illinois |
| 57 | John Robbins | 2 | Son | — | Illinois |
| 58 | Frank Stephens | 47 | Head | Fireman | Illinois |
| 59 | Pearl Stephens | 40 | Wife | — | Illinois |
| 60 | Adelia Stephens | 16 | Daughter | — | Illinois |
| 61 | Frank Jr. Stephens THIS PERSON | 15 | Son | — | Illinois |
| 62 | Robert Stephens | 9 | Son | — | Illinois |
| 63 | James Stephens | 8 | Son | — | Illinois |
| 64 | Richard Stephens | 6 | Son | — | Illinois |
| 65 | Lillian Stephens | 4 | Daughter | — | Illinois |
| 66 | Mary Patricia Stephens | 2 | Daughter | — | Illinois |
| 67 | Reinhold Johnson | 42 | Head | Auto Mechanic | Sweden |
| 68 | Hattie Johnson | 43 | Wife | — | Sweden |
| 69 | George Pardubsky | 36 | Head | Machinist | Indiana |
| 70 | Susan Pardubsky | 34 | Wife | — | Illinois |
| 71 | Laverne Pardubsky | 13 | Daughter | — | Illinois |
| 72 | George Jr. Pardubsky | 10 | Son | — | Illinois |
| 73 | Carl Davenport | 38 | Head | Machinist Helper | Colorado |
| 74 | Bertha Davenport | 38 | Wife | — | Illinois |
| 75 | Donald Davenport | 2 | Son | — | Illinois |
| 76 | Bernard Picton | 32 | Brother-in-law | Bricklayer Helper | Illinois |
| 77 | Ralph Picton | 30 | Brother-in-law | Supply Man | Illinois |
| 78 | Urban Picton | 27 | Brother-in-law | Pressman Helper | Illinois |
| 79 | Ignatius Kachinskas | 54 | Head | Molder | Lithuania |
| 80 | Charles Kachinskas | 26 | Son | Rate Setter | Illinois |
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)