LS
Lucille Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Lucille Smith across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 6-person household.
Age 41
b. ~1899
Female
Spouse
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Smith |
| Given Name | Lucille |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Macedonia Township |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Macedonia Township |
| Est. Birth Year | ~1899 |
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 Lucille | Age | Birth yr |
|---|---|---|---|---|
| Rosalie Smith | Daughter | — | 15 | ~1925 |
| Ralph Smith | Head | — | 46 | ~1894 |
| Mable Fred | Other | — | 22 | ~1918 |
| Elinor Cadwell | Other | — | 24 | ~1916 |
| Lowell Smith | Son | — | 18 | ~1922 |
| Lucille Smith | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Pottawattamie, Iowa
Spouse, age 20
Pottawattamie, Iowa · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lucile M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Pottawattamie, Iowa
Spouse, age 30
Pottawattamie, Iowa · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lucille |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 18 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | South Dakota |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Pottawattamie-County, Iowa
Spouse, age 41
Pottawattamie-County, Iowa · implied b. ~1899 — 6 household members
| Surname | Smith |
| Given Name | Lucille |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Macedonia Township |
| 1935 Residence (County) | Pottawattamie |
| Highest Grade | Hs 4 |
| 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 Lucille Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Lucille Smith
Spouse · 1940 · age 41 · b. ~1899 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pottawattamie-County, Iowa
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1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01199-00761)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Billy Joe Wallace | 5 | Son | — | — |
| 2 | Arch B. Houser | 49 | Head | Farmer | Iowa |
| 3 | Blodwen Houser | 46 | Wife | — | Iowa |
| 4 | Nona Houser | 21 | Daughter | Beauty Operator | Iowa |
| 5 | Carl D. Plumer | 39 | Head | Farmer | Iowa |
| 6 | Bernice Plumer | 36 | Wife | — | Iowa |
| 7 | Bernard Plumer | 8 | Son | — | Iowa |
| 8 | Paul Plumer | 5 | Son | — | Iowa |
| 9 | Phillip Plumer | 2 | Son | — | — |
| 10 | Earl O. Keast | 39 | Head | Farmer | Iowa |
| 11 | Maude Keast | 35 | Wife | — | Iowa |
| 12 | Laura Keast | 11 | Daughter | — | Iowa |
| 13 | Lois Keast | 9 | Daughter | — | Iowa |
| 14 | Joyce Keast | 4 | Daughter | — | — |
| 15 | Nels O. Peterson | 52 | Head | Farmer | Denmark |
| 16 | Johanne Peterson | 46 | Wife | — | Denmark |
| 17 | Henry Peterson | 19 | Son | Farm Laborer | Missouri |
| 18 | Robert Peterson | 16 | Son | — | Missouri |
| 19 | Ralph A. Smith | 46 | Head | Farmer | Iowa |
| 20 | Lucille Smith THIS PERSON | 41 | Wife | — | Nebraska |
| 21 | Lowell Smith | 18 | Son | — | Iowa |
| 22 | Rosalie Smith | 15 | Daughter | — | Iowa |
| 23 | Elinor Cadwell | 24 | Lodger | School Teacher | South Dakota |
| 24 | Mable Fred | 22 | Lodger | — | Minnesota |
| 25 | R. D. Lewis | 57 | Head | Farmer | Iowa |
| 26 | Bessie Lewis | 46 | Wife | — | Iowa |
| 27 | Ruby Lewis | 21 | Daughter | Beauty Operator | Iowa |
| 28 | Eliza Maltas | 24 | Daughter | — | Iowa |
| 29 | Carl Maltas | 24 | Son-in-law | Farm Laborer | Iowa |
| 30 | Norma Lee Maltas | 2 | Granddaughter | — | — |
| 31 | Betty Lou Maltas | 0 | Granddaughter | — | — |
| 32 | Faye O. Keast | 33 | Head | Farmer | Nebraska |
| 33 | Emma Keast | 30 | Wife | — | Iowa |
| 34 | Catherine Keast | 10 | Daughter | — | Iowa |
| 35 | Edward Keast | 4 | Son | — | — |
| 36 | Ronald Keast | 1 | Son | — | — |
| 37 | Harry G. Melburn | 41 | Head | Farmer | Iowa |
| 38 | Ruth Melburn | 35 | Wife | — | Iowa |
| 39 | James Fox | 41 | Head | Farmer | Iowa |
| 40 | D. M. Clark | 41 | Head | Farmer | Nebraska |
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)