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Joan Smith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Douglas, Nebraska
Our Model Tree links this Joan Smith across the 1930 and 1940 US Censuses in Douglas, Nebraska (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 0
b. ~1930
Female
Daughter
Born: Nebraska
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Douglas, Nebraska |
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Omaha City |
| Est. Birth Year | ~1930 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Joan | Age | Birth yr |
|---|---|---|---|---|
| Sidney Smith | Head | — | 38 | ~1892 |
| Francis Smith | Daughter | — | 6 | ~1924 |
| Joan Smith | Daughter | — | ~1930 | |
| Martha Smith | Spouse | — | 34 | ~1896 |
| Dorothy Smith | Daughter | — | 9 | ~1921 |
| Theodora Smith | Daughter | — | 17 | ~1913 |
| Richard Smith | Son | — | 3 | ~1927 |
Census Appearances
1930
Douglas, Nebraska
Daughter, age
Douglas, Nebraska · implied b. ~1930 — 7 household members
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Douglas-County, Nebraska
Daughter, age 10
Douglas-County, Nebraska · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Platte Valley |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Joan Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joan Smith
Daughter · 1930 · age 0 · b. ~1930 · Nebraska
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Sibling
Richard Smith
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodora Smith
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Smith
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Smith
Sibling · 1930 · age 6
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
1930 US Federal Census — Douglas, Nebraska
Open full size
1930 US Federal Census — Douglas, Nebraska
Page Contents
34 people indexed on this census page (ia:1930:15thcensus1279unit:0619)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edgar Duke | 43 | Head | Laborer | Ohio |
| 2 | Marie Duke | 45 | Wife | — | Belgium |
| 3 | Edward Lindstedt | 70 | Head | Helper | Sweden |
| 4 | Anna Lindstedt | 68 | Wife | — | Sweden |
| 5 | Sidney Smith | 38 | Head | Packer | Missouri |
| 6 | Martha Smith | 34 | Wife | — | Iowa |
| 7 | Theodora Smith | 17 | Daughter | — | Nebraska |
| 8 | Dorothy Smith | 9 | Daughter | — | Nebraska |
| 9 | Francis Smith | 6 | Daughter | — | Nebraska |
| 10 | Richard Smith | 3 | Son | — | Nebraska |
| 11 | Joan Smith THIS PERSON | 0 | Daughter | — | Nebraska |
| 12 | Edward Krumffold | 46 | Head | Carpenter | Illinois |
| 13 | Anna Krumffold | 43 | Wife | — | Iowa |
| 14 | Lorraine Krumffold | 20 | Daughter | Presser | Nebraska |
| 15 | George Krumffold | 17 | Son | — | Nebraska |
| 16 | Donald Krumffold | 12 | Son | — | Nebraska |
| 17 | Dorothy Krumffold | 2 | Daughter | — | Nebraska |
| 18 | Joe Lasmacek | 31 | Head | Laborer | Nebraska |
| 19 | Katheryn Lasmacek | 22 | Wife | — | Nebraska |
| 20 | Lorraine Lasmacek | 1 | Daughter | — | Nebraska |
| 21 | Homer Orton | 30 | Head | Truck Driver | Iowa |
| 22 | Alice Orton | 23 | Wife | — | Nebraska |
| 23 | John Orton | 5 | Son | — | Nebraska |
| 24 | Evelyn Orton | 2 | Daughter | — | Iowa |
| 25 | Margaret Humphrey | 58 | Mother-in-law | — | Iowa |
| 26 | William Brendinger | 52 | Head | Laborer | Iowa |
| 27 | Mildred Brendinger | 19 | Daughter | — | Iowa |
| 28 | Harriet Brendinger | 16 | Daughter | — | Nebraska |
| 29 | George Brendinger | 14 | Son | — | Nebraska |
| 30 | Lee Woodward | 43 | Head | — | United States |
| 31 | Emma Woodward | 29 | Wife | — | Germany |
| 32 | Emily Woodward | 7 | Daughter | — | Nebraska |
| 33 | Ernest Woodward | 4 | Son | — | Nebraska |
| 34 | George Woodward | 3 | Son | — | Nebraska |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)