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Frank Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this Frank Clark across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed), with identified parents Mary — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Clark |
| Given Name | Frank C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Le Claire Town |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Salesman |
| Industry | Produce |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2300 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Le Claire Town |
| Est. Birth Year | ~1888 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Clark | Daughter | — | 15 | ~1925 |
| Faith Clark | Daughter | — | 16 | ~1924 |
| Frank Clark | Head | — | 52 | ~1888 |
| Clara Clark | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Scott, Iowa
Son, age 32
Scott, Iowa · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Frank E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Button shop |
| Industry | Superintendent |
| Class of Worker | PW |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Scott, Iowa
Head, age 42
Scott, Iowa · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Frank C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Proprietor |
| Industry | Oil station |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4500 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Scott-County, Iowa
Head, age 52
Scott-County, Iowa · implied b. ~1888 — 4 household members
| Surname | Clark |
| Given Name | Frank C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Le Claire Town |
| 1935 Residence (County) | Scott |
| Occupation | Salesman |
| Industry | Produce |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2300 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Clark (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Clark
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Clark
Head · 1940 · age 52 · b. ~1888 · 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 — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01203-01069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lou Johnson | 73 | Head | — | Illinois |
| 2 | Henry Reese | 68 | Head | Labour | Iowa |
| 3 | Lottie Reese | 59 | Wife | — | Illinois |
| 4 | Eugene Coon | 69 | Head | — | Iowa |
| 5 | Jane Coon | 63 | Wife | — | Iowa |
| 6 | Howard Coon | 17 | Son | — | Iowa |
| 7 | Russell Coon | 15 | Son | — | Iowa |
| 8 | Martin Coon | 14 | Son | — | Iowa |
| 9 | Roy Gerdtz | 42 | Head | — | Iowa |
| 10 | Agnes Gerdtz | 29 | Wife | — | Iowa |
| 11 | Kathleen Gerdtz | 18 | Daughter | — | Iowa |
| 12 | Homer Patrick | 38 | Head | Laundryman | Illinois |
| 13 | Alma Patrick | 36 | Wife | — | Iowa |
| 14 | Wayne Patrick | 16 | Son | — | Iowa |
| 15 | Frances Patrick | 13 | Son | — | Iowa |
| 16 | Harold Patrick | 11 | Son | — | Iowa |
| 17 | Marilyn Patrick | 3 | Daughter | — | Iowa |
| 18 | Kaye Patrick | 1 | Daughter | — | Iowa |
| 19 | Vincent Grubb | 33 | Head | Laborer | Iowa |
| 20 | Wilma Grubb | 32 | Wife | — | Iowa |
| 21 | Vincent M. Grubb | 12 | Son | — | Iowa |
| 22 | Joann Grubb | 8 | Daughter | — | Iowa |
| 23 | Rheta Grubb | 5 | Daughter | — | Iowa |
| 24 | Benjamin Youngere | 53 | Head | Carpenter | Iowa |
| 25 | Marie Youngere | 44 | Wife | — | Iowa |
| 26 | Edward Youngere | 19 | Son | Owner | Iowa |
| 27 | Frank C. Clark THIS PERSON | 52 | Head | Salesman | Illinois |
| 28 | Clara E. Clark | 37 | Wife | — | Iowa |
| 29 | Faith M. Clark | 16 | Daughter | — | Iowa |
| 30 | Phyllis E. Clark | 15 | Daughter | — | Iowa |
| 31 | Clarence Bowker | 37 | Head | Insurance Agent | Iowa |
| 32 | Velma M. Bowker | 30 | Wife | — | Iowa |
| 33 | Eugenia L. Bowker | 8 | Son | — | Iowa |
| 34 | James H. Clark | 80 | Head | — | Illinois |
| 35 | Henry W. Fisher | 64 | Lodger | — | Iowa |
| 36 | Margret E. Fecker | 54 | Keeper | Housekeeper | Iowa |
| 37 | Elmer Randolph | 33 | Head | Laborer | Iowa |
| 38 | Dorothy Randolph | 23 | Wife | — | Iowa |
| 39 | Betty Randolph | 7 | Daughter | — | Iowa |
| 40 | Rose Randolph | 5 | Daughter | — | Iowa |
Pedigree Summary
Frank
Gen 1 · 1 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)