FS
Fred Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pinal-County, Arizona
Our Model Tree links this Fred Smith across the 1920, 1930 and 1940 US Censuses in Pinal-County, Arizona (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a head (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Head
Born: Arizona
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pinal-County, Arizona |
| Surname | Smith |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Arizona |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Pinal |
| Additional Details | |
| Occupation | Miner |
| Industry | Gold mine |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | 2 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Occupation | Miner |
| Township / Ward | Cd 2 Sd 2 |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Alice Smith | Daughter | — | 1 | ~1939 |
| Fred Smith | Head | — | 22 | ~1918 |
| Fred Smith | Son | — | 2 | ~1938 |
| Infant Smith | Son | — | ~1940 | |
| Julia Smith | Spouse | — | 20 | ~1920 |
Census Appearances
Son, age 1
Pinal, Arizona · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Frederick |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Arizona |
| Occupation | none |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1930
Pinal, Arizona
Son, age 11
Pinal, Arizona · implied b. ~1919 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Arizona |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Pinal-County, Arizona
Head, age 22
Pinal-County, Arizona · implied b. ~1918 — 5 household members
| Surname | Smith |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Arizona |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Pinal |
| Occupation | Miner |
| Industry | Gold mine |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | 2 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Fred Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Smith (~0.92 confidence) and father Charles Smith (~0.92 confidence) and mother Lucy Smith (~0.92 confidence) and mother Elizabeth Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Charles Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Lucy Smith
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Smith
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Smith
Head · 1940 · age 22 · b. ~1918 · Arizona
★ 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 — Pinal-County, Arizona
Open full size
1940 US Federal Census — Pinal-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00113-00330)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Lou Mendez | 12 | Daughter | — | Arizona |
| 2 | Manuel Mendez | 10 | Son | — | Arizona |
| 3 | Ofelia Mendez | 5 | Daughter | — | Arizona |
| 4 | Ralph Jr. Mendez | 2 | Son | — | Arizona |
| 5 | Jose Romo | 35 | Head | Miner | Arizona |
| 6 | Maria Romo | 26 | Wife | — | Arizona |
| 7 | Jose Jr. Romo | 1 | Son | — | Arizona |
| 8 | Vidal Martinez | 34 | Head | Miner | Arizona |
| 9 | Eleanor Martinez | 38 | Wife | — | Arizona |
| 10 | Connie Martinez | 18 | Daughter | New Worker | Arizona |
| 11 | Lilly Martinez | 11 | Daughter | — | Arizona |
| 12 | Isabel Martinez | 8 | Daughter | — | Arizona |
| 13 | Helen Martinez | 4 | Daughter | — | Arizona |
| 14 | Manuel Martinez | 3 | Son | — | Arizona |
| 15 | Fred Durazo | 23 | Head | Miner | Arizona |
| 16 | Pilar Durazo | 20 | Wife | — | Arizona |
| 17 | Joe Flores | 21 | Head | Miner | Mexico |
| 18 | Joe Flores | 59 | Father | — | Mexico |
| 19 | Lucile Flores | 44 | Mother | — | Mexico |
| 20 | Frank Flores | 22 | Brother | Mucker | Mexico |
| 21 | Susie Flores | 18 | Sister-in-law | — | Texas |
| 22 | Fred Smith THIS PERSON | 22 | Head | Miner | Arizona |
| 23 | Julia Smith | 20 | Wife | — | Arizona |
| 24 | Fred Smith | 2 | Son | — | Arizona |
| 25 | Alice Smith | 1 | Daughter | — | Arizona |
| 26 | Infant Smith | 0 | Son | — | Arizona |
| 27 | Charles Smith | 52 | Head | Selling Wood | Arizona |
| 28 | Carmen Smith | 46 | Wife | — | Arizona |
| 29 | Henry Smith | 20 | Son | Laborer | Arizona |
| 30 | Joe Smith | 18 | Son | New Worker | Arizona |
| 31 | Nellie Smith | 16 | Daughter | — | Arizona |
| 32 | Carmelita Smith | 10 | Daughter | — | Arizona |
| 33 | Thomas Armenta | 30 | Head | Motor Man | Mexico |
| 34 | Elidia Armenta | 20 | Wife | — | Arizona |
| 35 | Jesus Valdez | 51 | Head | Carpenter | Mexico |
| 36 | Rosa Valdez | 46 | Wife | — | Mexico |
| 37 | Donaciano Zendajas | 36 | Head | Miner | Mexico |
| 38 | Belin Zendajas | 33 | Wife | — | Mexico |
| 39 | Alvina Zendajas | 4 | Daughter | — | Arizona |
| 40 | Ygnacio Miranda | 28 | Head | Miner | Arizona |
Related Census Records
Pedigree Summary
Fred
Gen 1 · 4 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)