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Donald Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Donald Lewis across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Ray & Raymond — 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 | Polk-County, Iowa |
| Surname | Lewis |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Clerk |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 368 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Des Moines City |
| 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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Warren Lewis | Son | — | 10 | ~1930 |
| Donald Lewis | Son | — | 20 | ~1920 |
| Raymond Lewis | Head | — | 41 | ~1899 |
| Robert Lewis | Son | — | 13 | ~1927 |
| Floyd Lewis | Son | — | 15 | ~1925 |
| Thelma Lewis | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Polk, Iowa
Son, age
Polk, Iowa · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Donald F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 10
Polk, Iowa · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Polk-County, Iowa
Son, age 20
Polk-County, Iowa · implied b. ~1920 — 6 household members
| Surname | Lewis |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Clerk |
| Industry | Insurance Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 368 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Donald Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ray Lewis (~0.92 confidence) and father Raymond Lewis (~0.92 confidence) and mother Palma Lewis (~0.92 confidence) and mother Thelma Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ray Lewis
b. ~1898
Source father
● Household
· direct · ~0.92
Father
Raymond Lewis
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Palma Lewis
b. ~1902
Source mother
● Household
· direct · ~0.92
Mother
Thelma Lewis
b. ~1903
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Lewis
Son · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
Robert Lewis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Lewis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Lewis
Sibling · 1940 · age 10
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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01195-00654)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Robinson | 56 | Head | Fireman | Iowa |
| 2 | Della Robinson | 55 | Wife | — | Missouri |
| 3 | Sam Payne | 29 | Head | Porter | Iowa |
| 4 | Helen Payne | 22 | Wife | — | Kansas |
| 5 | Nora Payne | 5 | Daughter | — | Iowa |
| 6 | Sam Jr. Payne | 1 | Son | — | Iowa |
| 7 | Joyce Payne | 0 | Daughter | — | Iowa |
| 8 | James Michael | 32 | Head | Meat Cutter | Iowa |
| 9 | Myrtle Michael | 28 | Wife | — | Kansas |
| 10 | Donald Michael | 10 | Son | — | Iowa |
| 11 | Orville Barker | 38 | Head | Trucker | Missouri |
| 12 | Gladys Barker | 30 | Wife | — | Iowa |
| 13 | Leona Wilson | 62 | Head | — | Missouri |
| 14 | Eugene Matthews | 47 | Son | Driver | Missouri |
| 15 | Jasper Cooper | 62 | Head | Laborer | Iowa |
| 16 | Ruby Cooper | 50 | Wife | Janitor | Missouri |
| 17 | Harold Cooper | 17 | Son | — | Iowa |
| 18 | Lillian Cooper | 14 | Daughter | — | Iowa |
| 19 | Zedekiah Manigan | 48 | Head | Trucker | South Carolina |
| 20 | Sally Manigan | 47 | Wife | — | Georgia |
| 21 | James Baker | 49 | Head | Janitor | Iowa |
| 22 | Mary Baker | 48 | Wife | — | Tennessee |
| 23 | William Baker | 33 | Son | Draftsman | Iowa |
| 24 | Etna Baker | 29 | Daughter-in-law | Elevator Operator | Georgia |
| 25 | Dick Morgan | 25 | Head | Clerk | Iowa |
| 26 | Dorothy Morgan | 25 | Wife | — | Iowa |
| 27 | Robert Morgan | 3 | Son | — | Iowa |
| 28 | — | None | — | — | — |
| 29 | Oresta Hamby | 51 | Head | — | Iowa |
| 30 | Vernon Watkins | 27 | Son | Yard-Man | Iowa |
| 31 | Carlton Waldron | 54 | Lodger | Laborer | Iowa |
| 32 | Raymond Lewis | 41 | Head | Laborer | Iowa |
| 33 | Thelma Lewis | 37 | Wife | — | Iowa |
| 34 | Donald Lewis THIS PERSON | 20 | Son | Clerk | Iowa |
| 35 | Floyd Lewis | 15 | Son | — | Iowa |
| 36 | Robert Lewis | 13 | Son | — | Iowa |
| 37 | Warren Lewis | 10 | Son | — | Iowa |
| 38 | Edward Mowrey | 49 | Head | Laborer | Iowa |
| 39 | Golda Mowrey | 43 | Wife | — | Iowa |
| 40 | Donald Mowrey | 19 | Son | Laborer | Iowa |
Pedigree Summary
Donald + 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)