TS
Theodore Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Harrison, Iowa
Our Model Tree links this Theodore Smith across the 1920, 1930 and 1940 US Censuses in Harrison, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1903), then head of a 3-person household.
Age 27
b. ~1903
Male
Son
Born: Kansas
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Harrison, Iowa |
| Surname | Smith |
| Given Name | Theodore R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Occupation | Farming |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farming |
| Township / Ward | Lincoln Township |
| Est. Birth Year | ~1903 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Charles Smith | Head | — | 53 | ~1877 |
| Theodore Smith | Son | — | 27 | ~1903 |
| Lily Smith | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Harrison, Iowa
Son, age 17
Harrison, Iowa · implied b. ~1903 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Harrison, Iowa
Son, age 27
Harrison, Iowa · implied b. ~1903 — 3 household members
| Surname | Smith |
| Given Name | Theodore R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Occupation | Farming |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Harrison-County, Iowa
Head, age 37
Harrison-County, Iowa · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ted D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Harrison |
| Occupation | farm laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Theodore Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Smith (~0.92 confidence) and father Charles Smith (~0.92 confidence) and mother Lillie Smith (~0.92 confidence) and mother Lily Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Charles Smith
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lillie Smith
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Lily Smith
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Smith
Son · 1930 · age 27 · b. ~1903 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Harrison, Iowa
Open full size
1930 US Federal Census — Harrison, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel658:0517)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl D. Schneider | 13 | Son | None | Illinois |
| 2 | Wanda C. Schneider | 7 | Daughter | None | Iowa |
| 3 | Curtis Smith | 19 | Servant | Laborer | Kansas |
| 4 | Walter G. Schmidt | 30 | Head | Farming | Nebraska |
| 5 | Virgie M. Schmidt | 27 | Wife | None | Iowa |
| 6 | Clifford W. Schmidt | 5 | Son | None | Nebraska |
| 7 | William W. Schmidt | 3 | Son | None | Iowa |
| 8 | Helen L. Schmidt | 1 | Daughter | None | Iowa |
| 9 | Lloyd B. Poe | 26 | Servant | Farm Laborer | Iowa |
| 10 | Frederick D. Hack | 30 | Head | Farming | Iowa |
| 11 | Bernice W. Hack | 24 | Wife | None | Nebraska |
| 12 | Ruth E. Hack | 5 | Daughter | None | Iowa |
| 13 | Frederick D. Hack | 3 | Son | None | Iowa |
| 14 | Betty L. Hack | 2 | Daughter | None | Iowa |
| 15 | Paul R. Hack | 0 | Son | None | Iowa |
| 16 | Robert W. Smith | 38 | Head | Farming | Kansas |
| 17 | Anna H. Smith | 43 | Wife | None | Iowa |
| 18 | Cecil R. Smith | 10 | Son | None | Iowa |
| 19 | Russell M. Smith | 9 | Son | None | Iowa |
| 20 | Richard C. Smith | 3 | Son | None | Iowa |
| 21 | Michael Dimick | 36 | Hired hand | Farming | Indiana |
| 22 | Leslie A. Edwards | 38 | Head | Farming | Iowa |
| 23 | Bessie A. Edwards | 36 | Wife | None | Iowa |
| 24 | Jack L. Edwards | 4 | Son | None | Iowa |
| 25 | Donald V. Edwards | 1 | Son | None | Iowa |
| 26 | Fred L. Edwards | 42 | Brother | Farming | Iowa |
| 27 | Loretta K. Littleman | 14 | Stepdaughter | None | Iowa |
| 28 | Clifford W. Littleman | 11 | Stepson | None | Iowa |
| 29 | John Terrill | 69 | Head | Farming | Ohio |
| 30 | Lilly M. Terrill | 49 | Wife | None | Iowa |
| 31 | Vivian E. Terrill | 19 | Daughter | None | Iowa |
| 32 | Harold P. Terrill | 11 | Son | None | Iowa |
| 33 | Wilbur R. Pruge | 23 | Son-in-law | Laborer | Iowa |
| 34 | Theodore J. Brummer | 40 | Head | Farming | Iowa |
| 35 | Mary G. Brummer | 46 | Wife | None | Iowa |
| 36 | Frederick H. Brummer | 15 | Son | None | Iowa |
| 37 | Minnie S. Brummer | 13 | Daughter | None | Iowa |
| 38 | Vincent T. Brummer | 11 | Son | None | Iowa |
| 39 | Jerome W. Brummer | 10 | Son | None | Iowa |
| 40 | Francis H. Brummer | 8 | Son | None | Iowa |
| 41 | Bernard J. Brummer | 19 | Head | Farming | Iowa |
| 42 | Ruth C. Brummer | 19 | Sister | None | Iowa |
| 43 | Sidney A. Malone | 29 | Head | Farming | Iowa |
| 44 | Beatrice L. Malone | 23 | Wife | None | Iowa |
| 45 | Walter R. Malone | 4 | Son | None | Iowa |
| 46 | Marvin R. Malone | 0 | Son | None | Iowa |
| 47 | Richard T. Lytham | 68 | Head | Wood Chopper | Nebraska |
| 48 | Charles M. Smith | 53 | Head | Farming | Ohio |
| 49 | Lily E. Smith | 44 | Wife | None | Kansas |
| 50 | Theodore R. Smith THIS PERSON | 27 | Son | Farming | Kansas |
Pedigree Summary
Theodore
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)