FS
Frank Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Muscatine-County, Iowa
Our Model Tree links this Frank Smith across the 1920, 1930 and 1940 US Censuses in Muscatine-County, Iowa (XGBoost, ~Confirmed), with identified parents Earl & Earl — first a son (b.~1917), then head of a 10-person household.
Age 23
b. ~1917
Male
Son
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Muscatine-County, Iowa |
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Wapsinonoc twp |
| 1935 Residence (County) | Muscatine |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 480 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Wapsinonoc Twp |
| Est. Birth Year | ~1917 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Betty Smith | Daughter | — | 16 | ~1924 |
| Ethel Smith | Daughter | — | 19 | ~1921 |
| Earl Smith | Head | — | 42 | ~1898 |
| Virginia Smith | Other | — | 19 | ~1921 |
| Robert Smith | Son | — | 14 | ~1926 |
| Frank Smith | Son | — | 23 | ~1917 |
| Wayne Smith | Son | — | 9 | ~1931 |
| Kenneth Smith | Son | — | 11 | ~1929 |
| Rodney Smith | Son | — | 6 | ~1934 |
| Della Smith | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Muscatine, Iowa
Son, age 1
Muscatine, Iowa · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Muscatine, Iowa
Son, age 12
Muscatine, Iowa · implied b. ~1918 — 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 | 12 |
| 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
Muscatine-County, Iowa
Son, age 23
Muscatine-County, Iowa · implied b. ~1917 — 10 household members
| Surname | Smith |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Wapsinonoc twp |
| 1935 Residence (County) | Muscatine |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 480 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Frank Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Earl Smith (~0.92 confidence) and father Earl Smith (~0.92 confidence) and father E Smith (~0.92 confidence) and mother Della Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Earl Smith
b. ~1898
Source father
● Household
· direct · ~0.92
Father
Earl Smith
b. ~1898
Source father
● Household
· direct · ~0.92
Father
E Smith
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Della Smith
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Smith
Son · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Ethel Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wayne Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rodney Smith
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Smith
Sibling · 1940 · age 11
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 — Muscatine-County, Iowa
Open full size
1940 US Federal Census — Muscatine-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01186-00830)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | W. Scott Mcmahon | 49 | Head | Farmer | Iowa |
| 2 | Jean Mcmahon | 48 | Wife | — | Iowa |
| 3 | Marjory Mcmahon | 17 | Daughter | — | Iowa |
| 4 | Ruth Ann Mcmahon | 21 | Daughter | — | Iowa |
| 5 | Vernon O. Bell | 24 | Head | Farmer | Iowa |
| 6 | Margaret Bell | 22 | Wife | — | Minnesota |
| 7 | Mary Jane Bell | 4 | Daughter | — | Iowa |
| 8 | Robert Bell | 2 | Son | — | Iowa |
| 9 | Charlotte Bell | 1 | Daughter | — | Iowa |
| 10 | Frank Hines | 24 | Head | Farmer | Iowa |
| 11 | Edna Hines | 22 | Lodger | — | Iowa |
| 12 | Charles Bell | 70 | Head | Farmer | Iowa |
| 13 | Lynne Newton | 39 | Head | Farmer | Iowa |
| 14 | Margaret Newton | 32 | Wife | — | Iowa |
| 15 | Forest Collison | 32 | Head | Farmer | Iowa |
| 16 | Marie Collison | 26 | Wife | — | Iowa |
| 17 | Donna Mae Collison | 8 | Daughter | — | Iowa |
| 18 | Duane Collison | 1 | Son | — | Iowa |
| 19 | Clyde Park | 45 | Head | Farmer | Iowa |
| 20 | Viola Park | 42 | Wife | — | Iowa |
| 21 | James Park | 17 | Son | Np | Iowa |
| 22 | Lloyd Park | 14 | Son | — | Iowa |
| 23 | Henry Harder | 51 | Head | Farmer | Iowa |
| 24 | Ida Harder | 45 | Wife | — | Iowa |
| 25 | Lawrence Harder | 21 | Son | Farmer | Iowa |
| 26 | Elmer Harder | 16 | Son | — | Iowa |
| 27 | Charles Deahr | 51 | Head | Farmer | Iowa |
| 28 | Ethel Deahr | 48 | Wife | — | Iowa |
| 29 | Earl Deahr | 23 | Son | Farmer | Iowa |
| 30 | Lilly Deahr | 19 | Daughter-in-law | — | Iowa |
| 31 | Earl D. Smith | 42 | Head | Farmer | Iowa |
| 32 | Della Smith | 40 | Wife | — | Iowa |
| 33 | Ethel Ab. Smith | 19 | Daughter | Housework | Iowa |
| 34 | Betty Smith | 16 | Daughter | — | Iowa |
| 35 | Robert Smith | 14 | Son | — | Iowa |
| 36 | Kenneth Smith | 11 | Son | — | Iowa |
| 37 | Wayne Smith | 9 | Son | — | Iowa |
| 38 | Rodney Smith | 6 | Son | — | Iowa |
| 39 | Frank Smith THIS PERSON | 23 | Son | Farmer | Iowa |
| 40 | Virginia Smith | 19 | Daughter-in-law | — | Iowa |
Related Census Records
Pedigree Summary
Frank + 6 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)