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Joseph Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harrison-County, Iowa
Our Model Tree links this Joseph Smith across the 1920, 1930 and 1940 US Censuses in Harrison-County, Iowa (XGBoost, ~Confirmed), with identified parents Frank & Frank — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Iowa |
| Surname | Smith |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Little Sioux T |
| Additional Details | |
| Occupation | Farming |
| Industry | farmer |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farming |
| Township / Ward | Little Sioux T |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Annetta Smith | Daughter | — | 16 | ~1924 |
| Barbara Smith | Daughter | — | 8 | ~1932 |
| Frances Smith | Daughter | — | 23 | ~1917 |
| Frank Smith | Head | — | 49 | ~1891 |
| Joseph Smith | Son | — | 20 | ~1920 |
| Vera Smith | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Harrison, Iowa
Son, age
Harrison, Iowa · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Joseph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Harrison, Iowa
Son, age 11
Harrison, Iowa · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Joseph S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Harrison-County, Iowa
Son, age 20
Harrison-County, Iowa · implied b. ~1920 — 6 household members
| Surname | Smith |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Little Sioux T |
| Occupation | Farming |
| Industry | farmer |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Joseph Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Smith (~0.92 confidence) and father Frank Smith (~0.92 confidence) and mother Vera Smith (~0.92 confidence) and mother Vera Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Smith
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Frank Smith
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Vera Smith
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Vera Smith
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Smith
Son · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
Annetta Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Smith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Smith
Sibling · 1940 · age 8
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 — Harrison-County, Iowa
Open full size
1940 US Federal Census — Harrison-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-00385)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold Hilton | 16 | Son | No No No No | Iowa |
| 2 | Nellie Hilton | 9 | Daughter | No No No No | Iowa |
| 3 | S. J. Venable | 68 | Head | Const Foreman | Missouri |
| 4 | Leah Venable | 64 | Wife | No No No No | Missouri |
| 5 | Jack Venable | 15 | Son | No No No No | Missouri |
| 6 | R. R. Middleton | 39 | Head | Farmer | Illinois |
| 7 | Mary Middleton | 33 | Wife | No No No No | Illinois |
| 8 | Lee Ann Middleton | 7 | Daughter | — | Iowa |
| 9 | Harry Middleton | 4 | Son | — | Iowa |
| 10 | Jane Middleton | 2 | Daughter | — | Iowa |
| 11 | Antone N. Middleton | 74 | Father | No No No No | Denmark |
| 12 | Ben Elliff | 60 | Uncle | Laborer | Illinois |
| 13 | D. H. Jones | 40 | Head | Laborer | Missouri |
| 14 | Freda Jones | 38 | Wife | No No No No | Germany |
| 15 | Frances Jones | 13 | Daughter | — | Iowa |
| 16 | Donald Jones | 11 | Son | — | Iowa |
| 17 | Nina Jones | 10 | Daughter | — | Iowa |
| 18 | Lloyd Jones | 2 | Son | — | Iowa |
| 19 | Lauren Jones | 0 | Son | — | Iowa |
| 20 | Katherine Hall | 52 | Head | House Work | Iowa |
| 21 | Jack Hall | 26 | Son | Laborer | Iowa |
| 22 | Donald Hall | 24 | Son | Laborer | Iowa |
| 23 | Frank Conyers | 56 | Head | Farming | Iowa |
| 24 | Mae Conyers | 54 | Wife | No No No No | Iowa |
| 25 | Doyle Conyers | 21 | Son | Farmer | Iowa |
| 26 | Jean Conyers | 20 | Daughter | No No No No | Iowa |
| 27 | Robert Lee Conyers | 12 | Grandson | — | Iowa |
| 28 | Dwight Conyers | 3 | Grandson | — | Iowa |
| 29 | Clarence L. Pitty | 3 | Grandson | — | Iowa |
| 30 | Fred Pitty | 52 | Brother | Laborer | Iowa |
| 31 | Harry J. Kerr | 44 | Head | Farming | Iowa |
| 32 | Ellen E. Kerr | 42 | Wife | No No No No | Iowa |
| 33 | Frank B. Smith | 49 | Head | Farming | Iowa |
| 34 | Vera Smith | 46 | Wife | No No No No | Iowa |
| 35 | Frances Smith | 23 | Daughter | Housework | Iowa |
| 36 | Joseph Smith THIS PERSON | 20 | Son | Farming | Iowa |
| 37 | Annetta Smith | 16 | Daughter | No No No No | Iowa |
| 38 | Barbara Ann Smith | 8 | Daughter | — | Iowa |
| 39 | Geo. F. O'Day | 36 | Head | Farming | Germany |
| 40 | Marie O'Day | 40 | Wife | No No No No | Germany |
Pedigree Summary
Joseph + 3 siblings
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)