GS
Gilbert Smith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Gilbert Smith across the 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 12-person household.
Age 13
b. ~1917
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Smith |
| Given Name | Gilbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1917 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Gilbert | Age | Birth yr |
|---|---|---|---|---|
| Bobby Smith | Son | — | 6 | ~1924 |
| Mildred Smith | Daughter | — | 11 | ~1919 |
| Leslie Smith | Son | — | 2 | ~1928 |
| Barbara Smith | Daughter | — | 1 | ~1929 |
| Billy Smith | Son | — | 4 | ~1926 |
| Margaret Smith | Daughter | — | 10 | ~1920 |
| Gwen Smith | Daughter | — | 3 | ~1927 |
| Frances Smith | Spouse | — | 34 | ~1896 |
| Gilbert Smith | Son | — | 13 | ~1917 |
| John Smith | Head | — | 36 | ~1894 |
| Arthur Smith | Son | — | 8 | ~1922 |
| Jack Smith | Son | — | 14 | ~1916 |
Census Appearances
1920
Polk, Iowa
Son, age 3
Polk, Iowa · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Gilbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 13
Polk, Iowa · implied b. ~1917 — 12 household members
| Surname | Smith |
| Given Name | Gilbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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 |
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 Gilbert Smith across 2 US Census years (1920 and 1930) in Polk, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Gilbert Smith
Son · 1930 · age 13 · b. ~1917 · Iowa
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Sibling
Arthur Smith
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Smith
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Smith
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Smith
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Smith
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Smith
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bobby Smith
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leslie Smith
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gwen Smith
Sibling · 1930 · age 3
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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel677:0763)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis G Krebs | 33 | Head | Clergyman | Illinois |
| 2 | Louise H Krebs | 30 | Wife | — | Illinois |
| 3 | Leona Krebs | 8 | Daughter | — | Iowa |
| 4 | Norman R Krebs | 5 | Son | — | Iowa |
| 5 | M. E. Sandvold | 24 | Head | Stenographer | Iowa |
| 6 | Alma E Sandvold | 52 | Wife | — | Iowa |
| 7 | Wilma Sandvold | 19 | Sister | Stenographer | Iowa |
| 8 | O. W. Harrington | 31 | Brother in law | Switchman | Iowa |
| 9 | Thelma Harrington | 32 | Sister | Typist | Iowa |
| 10 | Eric A Anderson | 67 | Head | Printer | Sweden |
| 11 | Anna L Anderson | 67 | Wife | — | Sweden |
| 12 | Ethel E Anderson | 30 | Daughter | Housekeeper | Iowa |
| 13 | Robert A Prior | 29 | Son in law | Laborer | Iowa |
| 14 | Esther A Prior | 33 | Daughter | — | Iowa |
| 15 | Jake Matthews | 50 | Head | Painter | Missouri |
| 16 | Mattie Matthews | 46 | Wife | — | Missouri |
| 17 | Kathie G Matthews | 17 | Dau | — | Missouri |
| 18 | Bertha G Matthews | 14 | Dau | — | Missouri |
| 19 | Chas D Klinger | 37 | Head | Machinist | Iowa |
| 20 | Laura Klinger | 37 | Wife | — | Illinois |
| 21 | Robert Chas Klinger | 5 | Son | — | Iowa |
| 22 | Mary L Klinger | 3 | Daughter | — | Iowa |
| 23 | Charles H Keeler | 62 | Head | Mechanic | New York |
| 24 | Agnes Keeler | 61 | Wife | — | Iowa |
| 25 | Morris Keeler | 26 | Son | — | Iowa |
| 26 | Thomas Keeler | 18 | Son | — | Iowa |
| 27 | Isaac Bostrom | 71 | Head | Weaver | Germany |
| 28 | Clara Bostrom | 37 | Wife | Typist | Iowa |
| 29 | Jerry Kubec | 58 | Head | Packer | Bohemia |
| 30 | Agnes Kubec | 46 | Wife | — | Iowa |
| 31 | Alfred Kubec | 17 | Son | — | Iowa |
| 32 | Edw Gallagher | 45 | Head | Driver | Iowa |
| 33 | Allene Gallagher | 18 | Daughter | Wrapper | Iowa |
| 34 | Harlan Gallagher | 15 | Son | — | Iowa |
| 35 | John H Smith | 36 | Head | Miner | Iowa |
| 36 | Frances Smith | 34 | Wife | — | Iowa |
| 37 | Jack Smith | 14 | Son | — | Iowa |
| 38 | Gilbert Smith THIS PERSON | 13 | Son | — | Iowa |
| 39 | Mildred Smith | 11 | Daughter | — | Iowa |
| 40 | Margaret Smith | 10 | Daughter | — | Iowa |
| 41 | Arthur Smith | 8 | Son | — | Iowa |
| 42 | Bobby Smith | 6 | Son | — | Iowa |
| 43 | Billy Smith | 4 | Son | — | Iowa |
| 44 | Gwen Smith | 3 | Daughter | — | Iowa |
| 45 | Leslie Smith | 2 | Son | — | Iowa |
| 46 | Barbara Smith | 1 | Daughter | — | Iowa |
| 47 | Geo Hardenbrook | 35 | Head | Policeman | Iowa |
| 48 | Beatrice Hardenbrook | 29 | Wife | — | Iowa |
| 49 | Helen L Hardenbrook | 2 | Daughter | — | Iowa |
| 50 | — | None | — | — | — |
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)