GT
Grace Thompson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Pottawattamie, Iowa
Our Model Tree links this Grace Thompson across the 1910, 1920 and 1930 US Censuses in Pottawattamie, Iowa (XGBoost, ~Confirmed), with identified parents E & Edward — first a daughter (b.~1899), then head of a 4-person household.
Age 31
b. ~1899
Female
Daughter
Born: Missouri
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Pottawattamie, Iowa |
| Surname | Thompson |
| Given Name | Grace |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Cashier |
| Industry | City Water Wks |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Cashier |
| Township / Ward | Council Bluffs City |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Grace | Age | Birth yr |
|---|---|---|---|---|
| Grace Thompson | Daughter | — | 31 | ~1899 |
| Mary Thompson | Head | — | 65 | ~1865 |
| Huldah Thompson | Other | — | 44 | ~1886 |
| Floyd Thompson | Son | — | 47 | ~1883 |
Census Appearances
1910
Pottawattamie, Iowa
Daughter, age 11
Pottawattamie, Iowa · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1920
Pottawattamie, Iowa
Daughter, age 21
Pottawattamie, Iowa · implied b. ~1899 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Illinois |
| Occupation | Cashier |
| Industry | Waterworks |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Pottawattamie, Iowa
Daughter, age 31
Pottawattamie, Iowa · implied b. ~1899 — 4 household members
| Surname | Thompson |
| Given Name | Grace |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Illinois |
| Occupation | Cashier |
| Industry | City Water Wks |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Grace Thompson across 3 US Census years (1910, 1920 and 1930) in Pottawattamie, Iowa, using XGBoost record linkage. Identified parents: father E Thompson (~0.92 confidence) and father Edward Thompson (~0.92 confidence) and mother Agnes Thompson (~0.92 confidence) and mother Mary Thompson (~0.92 confidence) and mother Mary Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
E Thompson
b. ~1853
Source father
● Household
· direct · ~0.92
Father
Edward Thompson
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Agnes Thompson
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Mary Thompson
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Mary Thompson
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Grace Thompson
Daughter · 1930 · age 31 · b. ~1899 · Iowa
★ You are viewing this record
Sibling
Floyd Thompson
Sibling · 1930 · age 47
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 — Pottawattamie, Iowa
Open full size
1930 US Federal Census — Pottawattamie, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel679:0328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles S Burnette | 60 | Head | Minister | Iowa |
| 2 | Dell Burnette | 48 | Wife | None | Iowa |
| 3 | Ruth Burnette | 29 | Daughter | Teacher | Iowa |
| 4 | Paul R Burnette | 22 | Son | Salesman | Iowa |
| 5 | George J Ellsworth | 31 | Head | Salesman | Nebraska |
| 6 | Theresa Ellsworth | 30 | Wife | None | Iowa |
| 7 | Mary M Ellsworth | 3 | Daughter | None | Iowa |
| 8 | Robert Ellsworth | 1 | Son | None | Iowa |
| 9 | Mary Tinley | 61 | Head | Doctor | Iowa |
| 10 | Aurelea Tinley | 53 | Sister | Cashier | Iowa |
| 11 | Bessie Thordsen | 37 | Maid | Maid | Iowa |
| 12 | Mathilda Laskowski | 66 | Head | None | Iowa |
| 13 | Clyde Kingsley | 39 | Head | Fireman | Nebraska |
| 14 | Leta Kingsley | 38 | Wife | None | Iowa |
| 15 | Phyllis Kingsley | 12 | daughter | None | Iowa |
| 16 | Walter Kingsley | 6 | son | None | Iowa |
| 17 | Herbert Campbell | 35 | Head | Salesman | Wisconsin |
| 18 | Ruth Campbell | 37 | wife | None | Michigan |
| 19 | Richard Campbell | 10 | son | None | Iowa |
| 20 | Donald Campbell | 4 | son | None | Iowa |
| 21 | Jennie Glunt | 71 | Head | None | Pennsylvania |
| 22 | Samuel Kennedy | 48 | Head | Foreman | New York |
| 23 | Margret Kennedy | 47 | wife | None | Iowa |
| 24 | Florence Kennedy | 14 | daughter | None | Iowa |
| 25 | Wellington Kennedy | 52 | Head | Salesman | Canada |
| 26 | Minnie Kennedy | 46 | Wife | None | Canada |
| 27 | Lorne Kennedy | 22 | son | Reporter | Iowa |
| 28 | Ruth Kennedy | 20 | daughter | None | Iowa |
| 29 | John A Kennedy | 15 | son | None | Iowa |
| 30 | Samuel Seeley | 58 | Head | Laborer | Iowa |
| 31 | Clara D Seeley | 52 | wife | None | Pennsylvania |
| 32 | George Dicks | 60 | Head | Car Repairer | Ohio |
| 33 | Rosa I Dicks | 56 | wife | None | Missouri |
| 34 | William Dicks | 32 | son | Truck Driver | Missouri |
| 35 | Edna Mccampbell | 49 | Head | Laborer | Iowa |
| 36 | Donald E Mccampbell | 11 | son | Laborer | Iowa |
| 37 | Abraham Roy | 67 | Head | Laborer | Iowa |
| 38 | Ethel Roy | 56 | wife | Laundry Work | Iowa |
| 39 | Meril A Roy | 17 | son | Laborer | Iowa |
| 40 | Addie Mcfarland | 50 | Head | Laborer | Tennessee |
| 41 | Mary H Thompson | 65 | Head | None | Illinois |
| 42 | Floyd Thompson | 47 | son | Engineer | Missouri |
| 43 | Huldah Thompson | 44 | daughter-in-law | None | Iowa |
| 44 | Grace Thompson THIS PERSON | 31 | daughter | Cashier | Missouri |
| 45 | Fawcett Jones | 73 | Head | Freight Agent | Vermont |
| 46 | Mary Jones | 68 | Wife | None | Illinois |
| 47 | Earl R Jones | 37 | Son | Solicitor | Iowa |
| 48 | Herman Kirchhoff | 71 | Head | None | Missouri |
| 49 | Louise Kirchhoff | 73 | wife | None | Missouri |
| 50 | Laura Kirchhoff | 46 | daughter | None | Iowa |
Pedigree Summary
Grace + 1 sibling
Gen 1 · 5 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)