RS
Ralph Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pocahontas-County, Iowa
Our Model Tree links this Ralph Smith across the 1920, 1930 and 1940 US Censuses in Pocahontas-County, Iowa (XGBoost, ~Confirmed), with identified parents Emory & Mabel — first a head (b.~1902), then head of a 5-person household.
Age 38
b. ~1902
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pocahontas-County, Iowa |
| Surname | Smith |
| Given Name | Ralph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Lizard Township |
| 1935 Residence (County) | Pocahontas |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Farmer |
| Township / Ward | Lizard Township |
| Est. Birth Year | ~1902 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Loraine Smith | Daughter | — | 6 | ~1934 |
| Ralph Smith | Head | — | 38 | ~1902 |
| Glenn Smith | Son | — | 5 | ~1935 |
| Lee Smith | Son | — | 13 | ~1927 |
| Hanna Smith | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Pocahontas, Iowa
Son, age 17
Pocahontas, Iowa · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ralph B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Baker |
| Industry | City Bakery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Pocahontas, Iowa
Head, age 28
Pocahontas, Iowa · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ralph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | truck driver |
| Industry | creamery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Pocahontas-County, Iowa
Head, age 38
Pocahontas-County, Iowa · implied b. ~1902 — 5 household members
| Surname | Smith |
| Given Name | Ralph B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Lizard Township |
| 1935 Residence (County) | Pocahontas |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Ralph Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Emory Smith (~0.92 confidence) and mother Mabel Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Emory Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mabel Smith
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Smith
Head · 1940 · age 38 · b. ~1902 · Iowa
★ 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 — Pocahontas-County, Iowa
Open full size
1940 US Federal Census — Pocahontas-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01191-00345)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ernest J. Jacketer | 19 | Hired hand | Farm Hand | Minnesota |
| 2 | Gerd M. Peters | 39 | Head | Farmer | Iowa |
| 3 | Henrietta J. Peters | 33 | Wife | — | Iowa |
| 4 | Marlene J. Peters | 8 | Daughter | — | Iowa |
| 5 | Carolyn U. Peters | 6 | Daughter | — | Iowa |
| 6 | Crystie G. Peters | 4 | Son | — | Iowa |
| 7 | Claire M. Peters | 3 | Daughter | — | Iowa |
| 8 | Ferdinand C. Gerdes | 43 | Head | Farmer | Germany |
| 9 | Justina A. Gerdes | 37 | Wife | — | Germany |
| 10 | Irma L. Gerdes | 5 | Daughter | — | Iowa |
| 11 | Lena M. Donath | 19 | Hired girl | Housekeeper | Iowa |
| 12 | Fanny G. Hassing | 53 | Head | — | Iowa |
| 13 | Christopher Benner | 60 | Uncle | — | Germany |
| 14 | Carl L. Jonkman | 27 | Head | Farmer | Iowa |
| 15 | Luella V.H. Jonkman | 28 | Wife | — | Iowa |
| 16 | Laverne G. Jonkman | 4 | Son | — | Iowa |
| 17 | Elaine S. Jonkman | 1 | Daughter | — | Iowa |
| 18 | Christian H. Curks | 37 | Head | Farmer | Iowa |
| 19 | Emma F. Curks | 33 | Wife | — | Iowa |
| 20 | Irvin L. Curks | 14 | Son | — | Iowa |
| 21 | Irma Jo. Curks | 6 | Daughter | — | Iowa |
| 22 | Verna May Curks | 2 | Daughter | — | Iowa |
| 23 | Hanna M. Wigert | 51 | Head | — | Illinois |
| 24 | Louise A. Wigert | 24 | Daughter | — | Iowa |
| 25 | Clara M. Wigert | 20 | Daughter | — | Iowa |
| 26 | Ralph B. Smith THIS PERSON | 38 | Head | Farmer | Indiana |
| 27 | Hanna Smith | 37 | Wife | — | Iowa |
| 28 | Lee E. Smith | 13 | Son | — | Iowa |
| 29 | Loraine M. Smith | 6 | Daughter | — | Iowa |
| 30 | Glenn P. Smith | 5 | Son | — | Iowa |
| 31 | Henry L. Gerdes | 42 | Head | Farmer | Illinois |
| 32 | Annie J.H. Gerdes | 42 | Wife | — | Iowa |
| 33 | Helen R. Gerdes | 23 | Daughter | — | Iowa |
| 34 | Mildred E.P. Gerdes | 19 | Daughter | — | Iowa |
| 35 | Norman J. Gerdes | 11 | Daughter | — | Iowa |
| 36 | Alice Wiese | 66 | Head | — | Iowa |
| 37 | Clarence M. Wiese | 39 | Son | — | Iowa |
| 38 | William F. Wiese | 37 | Son | — | Iowa |
| 39 | Dorothy A. Wiese | 31 | Daughter | — | Iowa |
| 40 | Harold Hoek | 33 | Head | Farmer | Iowa |
Pedigree Summary
Ralph
Gen 1 · 2 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)