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Joan Smith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Joan Smith across the 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 8-person household.
Age 0
b. ~1930
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines 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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Joan | Age | Birth yr |
|---|---|---|---|---|
| Carroll Smith | Son | — | 14 | ~1916 |
| Don Smith | Son | — | 10 | ~1920 |
| Patsy Smith | Daughter | — | 4 | ~1926 |
| Doris Smith | Son | — | 17 | ~1913 |
| Joan Smith | Daughter | — | ~1930 | |
| Clark Smith | Head | — | 39 | ~1891 |
| Winnefred Smith | Spouse | — | 36 | ~1894 |
| Bernadine Smith | Daughter | — | 2 | ~1928 |
Census Appearances
1930
Polk, Iowa
Daughter, age
Polk, Iowa · implied b. ~1930 — 8 household members
| Surname | Smith |
| Given Name | Joan |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Daughter, age 10
Polk-County, Iowa · implied b. ~1930 — 12 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 | Iowa |
| 1935 Residence (City) | Des Moines |
| 1935 Residence (County) | Polk |
| Highest Grade | 4 |
| 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 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 · Iowa
★ You are viewing this record
Sibling
Patsy Smith
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Smith
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Don Smith
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carroll Smith
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Smith
Sibling · 1930 · age 17
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:iowacensus00reel674:0686)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Grant Braleher | 21 | son | Press Man | Missouri |
| 52 | Mildred Braleher | 11 | daughter | None | Missouri |
| 53 | Earl J. Vanatta | 49 | head | Watch Maker | West Virginia |
| 54 | Della P. Vanatta | 47 | wife | None | Iowa |
| 55 | Mary J. Vanatta | 7 | daughter | None | Iowa |
| 56 | Harry Aliber | 28 | head | Contractor | Iowa |
| 57 | Joe A. Aliber | 41 | wife | None | Iowa |
| 58 | George W. Rummu | 63 | head | Motorman | Ohio |
| 59 | Emma E. Rummu | 60 | wife | None | Ohio |
| 60 | David C. Laughery | 57 | head | Electrician | Iowa |
| 61 | Mary J. Laughery | 57 | wife | None | Iowa |
| 62 | Margaret A. Laughery | 21 | daughter | None | Iowa |
| 63 | Charles A. Laughery | 20 | son | None | Iowa |
| 64 | Jessie G. Laughery | 16 | daughter | None | Iowa |
| 65 | Jessie Shaw | 54 | head | None | Illinois |
| 66 | Russell Simmons | 21 | son | Multigraph | Iowa |
| 67 | Dale Simmons | 17 | son | Stock Man | Iowa |
| 68 | Rolland Christian | 49 | head | Retired | Illinois |
| 69 | Florence Christian | 42 | wife | Telephone Board | Illinois |
| 70 | Marjorie Christian | 16 | daughter | None | Iowa |
| 71 | John Christian | 13 | son | None | Iowa |
| 72 | Lowell Perins | 20 | head | Salesman | Iowa |
| 73 | Pauline Perins | 19 | wife | Stenographer | Iowa |
| 74 | Charles L. Johnson | 50 | head | Salesman | Missouri |
| 75 | Bertha K. Johnson | 49 | wife | None | Missouri |
| 76 | Julius Borem | 38 | head | Sta. Engineer | Iowa |
| 77 | Irene Borem | 33 | wife | None | Idaho |
| 78 | Marjorie Borem | 8 | daughter | None | Iowa |
| 79 | Doris Borem | 6 | daughter | None | Iowa |
| 80 | Jean Borem | 4 | daughter | None | Iowa |
| 81 | Earl Borem | 2 | son | None | Iowa |
| 82 | Kenneth Borem | 0 | son | None | Iowa |
| 83 | Albert Raymond | 35 | head | Salesman | Iowa |
| 84 | Mabel Raymond | 31 | wife | None | Iowa |
| 85 | Albert L. Raymond | 9 | son | None | Iowa |
| 86 | Billie D. Raymond | 4 | son | None | Iowa |
| 87 | Howard R. Raymond | 2 | son | None | Iowa |
| 88 | Loren Shaffer | 37 | head | Checker | Iowa |
| 89 | Mabel Shaffer | 35 | wife | None | Iowa |
| 90 | Shirley B. Shaffer | 9 | daughter | None | Iowa |
| 91 | Clark Smith | 39 | head | Electrician | Iowa |
| 92 | Winnefred Smith | 36 | wife | None | Iowa |
| 93 | Doris Smith | 17 | son | Farm Hand | Iowa |
| 94 | Carroll Smith | 14 | son | None | Iowa |
| 95 | Don Smith | 10 | son | None | Iowa |
| 96 | Patsy Smith | 4 | daughter | None | Iowa |
| 97 | Bernadine Smith | 2 | daughter | None | Iowa |
| 98 | Joan Smith THIS PERSON | 0 | daughter | None | Iowa |
| 99 | Len D. Barron | 41 | head | Car Repairer | Missouri |
| 100 | Bessie M. Barron | 34 | wife | None | Arkansas |
Related Census Records
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)