KS
Kathryn Smith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Kathryn Smith across the 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 11-person household.
Age 12
b. ~1918
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Smith |
| Given Name | Kathryn A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Jefferson Township |
| Est. Birth Year | ~1918 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Kathryn | Age | Birth yr |
|---|---|---|---|---|
| Patricia Smith | Daughter | — | 5 | ~1925 |
| Mary Smith | Daughter | — | 16 | ~1914 |
| Mary Smith | Spouse | — | 41 | ~1889 |
| Rosella Smith | Daughter | — | 9 | ~1921 |
| Francis Smith | Son | — | 3 | ~1927 |
| Loretta Smith | Daughter | — | 7 | ~1923 |
| Arthur Smith | Other | — | 32 | ~1898 |
| Joseph Smith | Son | — | 14 | ~1916 |
| Thomas Smith | Head | — | 42 | ~1888 |
| Kathryn Smith | Daughter | — | 12 | ~1918 |
| Agatha Smith | Daughter | — | 1 | ~1929 |
Census Appearances
1930
Polk, Iowa
Daughter, age 12
Polk, Iowa · implied b. ~1918 — 11 household members
| Surname | Smith |
| Given Name | Kathryn A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Spouse, age 23
Polk-County, Iowa · implied b. ~1917 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Katherine M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Clarke |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| 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 Kathryn Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Kathryn Smith
Daughter · 1930 · age 12 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Francis Smith
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Smith
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Smith
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Smith
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosella Smith
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agatha Smith
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Smith
Sibling · 1930 · age 7
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:iowacensus00reel678:0216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frances Gaveney | 7 | Daughter | None | Iowa |
| 52 | John F Gaveney | 33 | Head | Farmer | Iowa |
| 53 | Owen Pray | 18 | Hired Hand | Laborer | North Ireland |
| 54 | Earl Wilcox | 34 | Head | None | Iowa |
| 55 | Lydia H Wilcox | 37 | Wife | None | Iowa |
| 56 | Arthur L Green | 10 | Son | None | Iowa |
| 57 | Leland E Wilcox | 27 | Partner | General Farmer | Iowa |
| 58 | Irene H Wilcox | 21 | Wife | None | Iowa |
| 59 | John J Wilcox | 1 | Son | — | Iowa |
| 60 | Anna Wilcox | 75 | Mother-in-law | None | Ohio |
| 61 | Rudolph Sandegren | 31 | Head | Farming | Kansas |
| 62 | Esther L-H Sandegren | 32 | Wife | None | Iowa |
| 63 | Ione L Sandegren | 9 | Daughter | None | Iowa |
| 64 | Frances M Sandegren | 7 | Daughter | None | Iowa |
| 65 | John E Sandegren | 4 | Son | None | Iowa |
| 66 | Bertha Rehnblom | 73 | Mother-in-law | Housewife | Sweden |
| 67 | Dora K Balthus | 73 | Head | Retired | Iowa |
| 68 | Helen L-H Balthus | 32 | Daughter | None | Iowa |
| 69 | Bertram Balthus | 17 | Nephew | None | Illinois |
| 70 | Milo D Hawn | 40 | Head | Farmer | Iowa |
| 71 | Bessie H Hawn | 34 | Wife | None | Iowa |
| 72 | John Routson | 50 | Head | Farmer | Iowa |
| 73 | Florence H Routson | 42 | Wife | None | Iowa |
| 74 | Grace Routson | 23 | Daughter | None | Iowa |
| 75 | Roy E Routson | 20 | Son | Farmer | Iowa |
| 76 | Ethel P Routson | 17 | Daughter | None | Iowa |
| 77 | William E Routson | 16 | Son | None | Iowa |
| 78 | Sylvia M Routson | 12 | Daughter | None | Iowa |
| 79 | Audrey L Routson | 3 | Daughter | None | Iowa |
| 80 | George S Balthus | 41 | Head | Farmer | Iowa |
| 81 | Vera B-H Balthus | 37 | Wife | None | Iowa |
| 82 | Elmore E Balthus | 13 | Son | None | Iowa |
| 83 | Oliver P Herald | 54 | Head | Farmer | Iowa |
| 84 | John W Smith | 38 | Head | Farmer | Iowa |
| 85 | Agnes H-H Smith | 38 | Wife | None | Iowa |
| 86 | Kate R Smith | 7 | Daughter | None | Iowa |
| 87 | Mary D Smith | 3 | Daughter | None | Iowa |
| 88 | Madeline A Smith | 1 | Daughter | None | Iowa |
| 89 | Orville Gorman | 35 | Hired Hand | None | Minnesota |
| 90 | Thomas J Smith | 42 | Head | Farmer | Iowa |
| 91 | Mary H-H Smith | 41 | Wife | None | Iowa |
| 92 | Mary G Smith | 16 | Daughter | None | Iowa |
| 93 | Joseph F Smith | 14 | Son | None | Iowa |
| 94 | Kathryn A Smith THIS PERSON | 12 | Daughter | None | Iowa |
| 95 | Rosella M Smith | 9 | Daughter | None | Iowa |
| 96 | Loretta M Smith | 7 | Daughter | None | Iowa |
| 97 | Patricia A Smith | 5 | Daughter | None | Iowa |
| 98 | Francis Smith | 3 | Son | None | Iowa |
| 99 | Agatha M Smith | 1 | Daughter | None | Iowa |
| 100 | Arthur Smith | 32 | Brother | Laborer | Iowa |
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)