FD
Frank Davis — 1920 US Census Record
Model Tree available1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Frank Davis across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a son (b.~1916), then head of a 4-person household.
Age 4
b. ~1916
Male
Son
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Davis |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Berwyn City |
| Est. Birth Year | ~1916 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Joseph Davis | Head | — | 28 | ~1892 |
| Frank Davis | Son | — | 4 | ~1916 |
| Joseph Davis | Son | — | 6 | ~1914 |
| Anna Davis | Spouse | — | 27 | ~1893 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 4 household members
| Surname | Davis |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| 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 14
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Divis |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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 24
Cook-County, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Divis |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Berwyn City |
| 1935 Residence (County) | Cook |
| Occupation | Tool and die maker |
| Industry | Inland Steel Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 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 Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Divis (~0.92 confidence) and father Joseph Davis (~0.92 confidence) and father Joseph Divis (~0.92 confidence) and mother Anna Davis (~0.92 confidence) and mother Anna Divis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Divis
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Joseph Davis
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Joseph Divis
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Anna Davis
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Anna Divis
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Davis
Son · 1920 · age 4 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Joseph Davis
Sibling · 1920 · 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
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu357unit:0748)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kurt Krapikowski | 71 | Head | — | Germany |
| 2 | Joseph Davis | 28 | Head | Tailor | Illinois |
| 3 | Anna Davis | 27 | Wife | — | Illinois |
| 4 | Joseph Jr Davis | 6 | Son | — | Illinois |
| 5 | Frank Davis THIS PERSON | 4 | Son | — | Illinois |
| 6 | Herman Vorrayer | 32 | Head | Machinist | Germany |
| 7 | Martha Vorrayer | 32 | Wife | — | Minnesota |
| 8 | Evelyn Vorrayer | 10 | Daughter | — | Illinois |
| 9 | Harold Vorrayer | 7 | Son | — | Illinois |
| 10 | Alois Kordula | 37 | Head | Carpenter | Bohemia |
| 11 | Anna Kordula | 30 | Wife | — | Bohemia |
| 12 | Joseph Kordula | 12 | Son | — | Bohemia |
| 13 | Anna Kordula | 9 | Daughter | — | Bohemia |
| 14 | Frank Madle | 34 | Head | Tool Maker | Bohemia |
| 15 | Antonia Madle | 33 | Wife | — | Bohemia |
| 16 | Frank Madle | 11 | Son | — | Illinois |
| 17 | Emma Madle | 5 | Daughter | — | Illinois |
| 18 | Helen Madle | 3 | Daughter | — | Illinois |
| 19 | Charles Eggerstedt | 41 | Head | Motorman | Germany |
| 20 | Hanna Eggerstedt | 36 | Wife | — | Illinois |
| 21 | Alice Eggerstedt | 13 | Daughter | Typist | Illinois |
| 22 | Charles Eggerstedt | 11 | Son | — | Illinois |
| 23 | Florence Eggerstedt | 8 | Daughter | — | Illinois |
| 24 | Frank Slabinek | 32 | Head | Presser | Moravia |
| 25 | Antonia Slabinek | 30 | Wife | — | Bohemia |
| 26 | Bessie Slabinek | 5 | Daughter | — | Illinois |
| 27 | Frank Musicha | 42 | Head | Polisher | Bohemia |
| 28 | Frances Musicha | 42 | Wife | — | Bohemia |
| 29 | Mary Musicha | 15 | Daughter | Clerk | Illinois |
| 30 | Joe Musicha | 11 | Son | — | Illinois |
| 31 | Frank Jr Musicha | 10 | Son | — | Illinois |
| 32 | Fred Musicha | 8 | Son | — | Illinois |
| 33 | Laddie Musicha | 6 | Son | — | Illinois |
| 34 | Adam Vlk | 29 | Head | Machinist | Russia |
| 35 | Anna Vlk | 26 | Wife | — | Russia |
| 36 | Rosie Vlk | 4 | Daughter | — | Illinois |
| 37 | John Vlk | 2 | Son | — | Illinois |
| 38 | John Wrellonshir | 46 | Head | Janitor | Poland |
| 39 | Sophie Wrellonshir | 39 | Wife | — | Poland |
| 40 | Amelia Wrellonshir | 12 | Daughter | — | Illinois |
| 41 | Sylvia Wrellonshir | 10 | Daughter | — | Illinois |
| 42 | Adeline Wrellonshir | 6 | Daughter | — | Illinois |
| 43 | Charles Maton | 34 | Head | Assembler | Moravia |
| 44 | Martha Maton | 32 | Wife | Assembler | Moravia |
| 45 | Frank Maton | 7 | Son | — | Illinois |
| 46 | Frank Krizek | 38 | Head | Presser | Bohemia |
| 47 | Marie Krizek | 38 | Wife | — | Bohemia |
| 48 | Frank Jr Krizek | 17 | Son | Apprentice | Bohemia |
| 49 | Mike Trubecky | 62 | Father in Law | — | Bohemia |
| 50 | Charles Trubecky | 25 | Brother in Law | Cutter | Bohemia |
Pedigree Summary
Frank + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)