DS
David Stewart — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lyon-County, Iowa
Our Model Tree links this David Stewart across the 1930 and 1940 US Censuses in Lyon-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lyon-County, Iowa |
| Surname | Stewart |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rock Rapids |
| 1935 Residence (County) | Lyon |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Rock Rapids |
| Est. Birth Year | ~1924 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Veva Stewart | Daughter | — | 32 | ~1908 |
| Kenneth Stewart | Son | — | 14 | ~1926 |
| Gene Stewart | Son | — | 12 | ~1928 |
| Charles Stewart | Son | — | 19 | ~1921 |
| Walter Stewart | Head | — | 55 | ~1885 |
| David Stewart | Son | — | 16 | ~1924 |
| Robert Stewart | Son | — | 29 | ~1911 |
| Betty Stewart | Daughter | — | 21 | ~1919 |
| June Stewart | Daughter | — | 10 | ~1930 |
| Bertha Stewart | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Lyon, Iowa
Son, age 6
Lyon, Iowa · implied b. ~1924 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Stewart |
| Given Name | David L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lyon-County, Iowa
Son, age 16
Lyon-County, Iowa · implied b. ~1924 — 10 household members
| Surname | Stewart |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rock Rapids |
| 1935 Residence (County) | Lyon |
| Highest Grade | Hs 4 |
| 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 David Stewart across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Stewart
Son · 1940 · age 16 · b. ~1924 · Iowa
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Sibling
Veva Stewart
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Stewart
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Stewart
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Stewart
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Stewart
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Stewart
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Stewart
Sibling · 1940 · age 12
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 — Lyon-County, Iowa
Open full size
1940 US Federal Census — Lyon-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01179-00408)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Begley Ann Seebands | 52 | Daughter | — | Iowa |
| 2 | Sigmund Yappen | 50 | Head | Laborer | Illinois |
| 3 | Doris Yappen | 53 | Wife | — | Maine |
| 4 | Eugene Anderson | 33 | Head | Laborer | Iowa |
| 5 | Ethel Anderson | 23 | Wife | — | Iowa |
| 6 | Tracy Anderson | 1 | Son | — | Iowa |
| 7 | Carl Lohman | 45 | Head | Clerk | Iowa |
| 8 | Mable Lohman | 45 | Wife | — | Iowa |
| 9 | Marjorie Lohman | 12 | Daughter | — | Iowa |
| 10 | Carol Lohman | 9 | Daughter | — | Iowa |
| 12 | Walter Stewart | 55 | Head | Owner Proprietor | Iowa |
| 13 | Bertha Stewart | 52 | Wife | — | Nebraska |
| 14 | Veva Stewart | 32 | Daughter | Secretary | Iowa |
| 15 | Robert Stewart | 29 | Son | Truck Driver | Iowa |
| 16 | Betty Stewart | 21 | Daughter | Secretary | Iowa |
| 17 | Charles Stewart | 19 | Son | Truck Driver | Iowa |
| 18 | David Stewart THIS PERSON | 16 | Son | — | Iowa |
| 19 | Kenneth Stewart | 14 | Son | — | Iowa |
| 20 | Gene Stewart | 12 | Son | — | Iowa |
| 21 | June Stewart | 10 | Daughter | — | Iowa |
| 22 | William Kahl | 84 | Head | — | Illinois |
| 23 | Mary Kahl | 78 | Wife | — | Illinois |
| 24 | Mary Kahl | 39 | Daughter | Cashier Retail | Illinois |
| 25 | Henry Berman | 77 | Head | President | Germany |
| 26 | James W. Forester | 47 | Son-in-law | Proprietor Owner | Hawaii |
| 27 | Ella Forester | 47 | Daughter | Clerk | Iowa |
| 28 | J. A. Raths | 59 | Head | Dentist | Iowa |
| 29 | Elsie Raths | 61 | Wife | — | Iowa |
| 30 | Hans Nettman | 57 | Head | Fireman | Germany |
| 31 | Emma Nettman | 54 | Wife | — | Iowa |
| 32 | Viola Nettman | 18 | Daughter | — | Iowa |
| 33 | Erma Nettman | 15 | Daughter | — | Iowa |
| 34 | Pauline Mcdonald | 67 | Head | — | Illinois |
| 35 | Harry Mcdonald | 47 | Son | Musician | Iowa |
| 36 | Peter G. Behr | 81 | Head | — | Germany |
| 37 | Hanka Behr | 76 | Wife | — | Germany |
| 38 | Minnie Behr | 38 | Daughter | — | Iowa |
| 39 | Merle Winter | 57 | Head | Salesman | S. Dakota |
| 40 | Anita G. Winter | 55 | Wife | — | S. Dakota |
Related Census Records
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)