FS
Frank Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butler-County, Kansas
Our Model Tree links this Frank Smith across the 1920, 1930 and 1940 US Censuses in Butler-County, Kansas (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Kansas |
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | R |
| Additional Details | |
| Occupation | research chemist |
| Industry | Oil refinery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | C 4 |
| 1935 Residence | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Research Chemist |
| Township / Ward | El Dorado |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Karen Smith | Daughter | — | 2 | ~1938 |
| Frank Smith | Head | — | 31 | ~1909 |
| Dorothy Smith | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Butler, Kansas
Son, age 10
Butler, Kansas · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Butler, Kansas
Son, age 20
Butler, Kansas · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | laborer |
| Industry | oil field |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Butler-County, Kansas
Head, age 31
Butler-County, Kansas · implied b. ~1909 — 3 household members
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | R |
| Occupation | research chemist |
| Industry | Oil refinery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | C 4 |
| 1935 Residence | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Minnie Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Smith
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Minnie Smith
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Smith
Head · 1940 · age 31 · b. ~1909 · Kansas
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Butler-County, Kansas
Open full size
1940 US Federal Census — Butler-County, Kansas
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01222-00408)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Berten Cape | 16 | son | — | Missouri |
| 2 | Elmer Chalfant | 30 | Head | Machinist | Missouri |
| 3 | Alva D. Chalfant | 26 | Wife | — | Missouri |
| 4 | Robert Chalfant | 8 | son | — | Kansas |
| 5 | Janice Sue Chalfant | 3 | daughter | — | Kansas |
| 6 | C. R. Raley | 29 | Head | Laborer | Missouri |
| 7 | Velma Raley | 26 | wife | — | Missouri |
| 8 | Henry Morgan | 36 | Head | Pipe Fitter | Illinois |
| 9 | Helen Morgan | 36 | wife | — | Missouri |
| 10 | Lucille Morgan | 16 | daughter | — | Oklahoma |
| 11 | Lloyd Morgan | 3 | son | — | Kansas |
| 12 | Herbert Slough | 26 | Head | Owner | Missouri |
| 13 | Marion Slough | 21 | wife | Helper | Oklahoma |
| 14 | Louisa Slough | 24 | sister | — | Oklahoma |
| 16 | E. C. Vilrod | 37 | Head | Truck Driver | Kansas |
| 17 | Almeda Vilrod | 32 | wife | — | Kansas |
| 18 | Robert Lee Vilrod | 11 | son | — | Kansas |
| 19 | O. W. Hobson | 44 | Head | Owner | Nebraska |
| 20 | Minnie Hobson | 36 | wife | — | Missouri |
| 21 | Rex Hobson | 11 | son | — | Kansas |
| 22 | Glen Hobson | 4 | son | — | Kansas |
| 23 | Ralph Hobson | 2 | son | — | Kansas |
| 24 | Arlene Hobson | 12 | daughter | — | Kansas |
| 25 | Theodore Hobson | 81 | father | — | Indiana |
| 26 | Frank Smith THIS PERSON | 31 | Head | Research Chemist | Kansas |
| 27 | Dorothy Smith | 31 | wife | — | Kansas |
| 28 | Karen Smith | 2 | daughter | — | Kansas |
| 29 | Pearl Anderson | 46 | Head | — | Nebraska |
| 30 | Donal Lee Anderson | 13 | son | — | Kansas |
| 31 | Billy Roy Anderson | 10 | son | — | Kansas |
| 32 | Tony Floyd | 27 | Head | Attendant | Kansas |
| 33 | Ruth Floyd | 26 | wife | — | Colorado |
| 34 | Sonya Floyd | 2 | daughter | — | Kansas |
| 35 | Stephen Floyd | 4 | grandson | — | Kansas |
| 36 | Jesse Keith | 41 | Head | Tank Car Loader | Kansas |
| 37 | Jessie Keith | 39 | wife | — | Missouri |
| 38 | Helen Keith | 18 | daughter | — | Kansas |
| 39 | Rosalie Keith | 12 | daughter | — | Kansas |
Pedigree Summary
Frank
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)