RT
Richard Thompson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Richard Thompson across the 1910, 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Steve & Anna — first a son (b.~1905), then head of a 5-person household.
Age 25
b. ~1905
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Thompson |
| Given Name | Richard S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Asst Manager |
| Industry | Tannery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Asst Manager |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Mary Thompson | Daughter | — | 13 | ~1917 |
| Arvah Thompson | Head | — | 48 | ~1882 |
| Richard Thompson | Son | — | 25 | ~1905 |
| William Thompson | Son | — | 16 | ~1914 |
| Thomas Thompson | Son | — | 19 | ~1911 |
Census Appearances
1910
Polk, Iowa
Son, age 5
Polk, Iowa · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Richard L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Polk, Iowa
Son, age 14
Polk, Iowa · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Richard S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Delivery Boy |
| Industry | Drug Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 25
Polk, Iowa · implied b. ~1905 — 5 household members
| Surname | Thompson |
| Given Name | Richard S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Asst Manager |
| Industry | Tannery |
| Class of Worker | W |
| 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 Richard Thompson across 3 US Census years (1910, 1920 and 1930) in Polk, Iowa, using XGBoost record linkage. Identified parents: father Steve Thompson (~0.92 confidence) and mother Anna Thompson (~0.92 confidence) and mother Anna Thompson (~0.92 confidence) and mother Arvah Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Steve Thompson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Anna Thompson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Anna Thompson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Arvah Thompson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Thompson
Son · 1930 · age 25 · b. ~1905 · Iowa
★ You are viewing this record
Sibling
Mary Thompson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Thompson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Thompson
Sibling · 1930 · age 19
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:iowacensus00reel674:0004)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Pearl H Abbott | 35 | Wife | — | Indiana |
| 52 | Edgar D Boyd | 54 | Head | Broker | Ohio |
| 53 | Bess B Boyd | 53 | Wife | — | Ohio |
| 54 | Ben Boyd | 16 | Son | — | Iowa |
| 55 | Emmet M O'Keefe | 54 | Head | Dentist | Iowa |
| 56 | Minnie I O'Keefe | 52 | Wife | — | Iowa |
| 57 | Patricia O'Keefe | 25 | Daughter | Stenographer | Iowa |
| 58 | H. S. Crittenden | 36 | Head | Real Estate | Illinois |
| 59 | Thelma Crittenden | 26 | Wife | Secretary | Iowa |
| 60 | Robert D Crittenden | 3 | Son | — | California |
| 61 | Harry Allfree | 63 | Head | Engineer | Iowa |
| 62 | Alice Allfree | 62 | Wife | — | Ohio |
| 63 | Paul C Bauldry | 39 | Head | Road Manager | Ohio |
| 64 | Jennie Bauldry | 35 | Wife | — | Iowa |
| 65 | Paul C Jr Bauldry | 13 | Son | — | Illinois |
| 66 | Betty J Bauldry | 11 | Daughter | — | Illinois |
| 67 | Virginia Bauldry | 10 | Daughter | — | Illinois |
| 68 | Shirley Bauldry | 9 | Daughter | — | Illinois |
| 69 | Louise Bauldry | 7 | Daughter | — | Illinois |
| 70 | George Bauldry | 6 | Daughter | — | Iowa |
| 71 | James Davis | 58 | Head | Comptroller | Canada-English |
| 72 | Edith M Davis | 52 | Wife | — | Michigan |
| 73 | Theresa L Davis | 83 | Mother | — | England |
| 74 | Charles B Thomas | 54 | Head | Agent | Iowa |
| 75 | Gladys M Thomas | 53 | Wife | — | Iowa |
| 76 | Rebecca Waddell | 81 | Mother-in-law | — | Ohio |
| 77 | Rena Simcox | 48 | Head | Teacher | Iowa |
| 78 | Mary Simcox | 74 | Mother | — | Iowa |
| 79 | Arvah Thompson | 48 | Head | — | Iowa |
| 80 | Richard S Thompson THIS PERSON | 25 | Son | Asst Manager | Iowa |
| 81 | Thomas J Thompson | 19 | Son | — | Iowa |
| 82 | William R Thompson | 16 | Son | — | Iowa |
| 83 | Mary E Thompson | 13 | Daughter | — | Iowa |
| 84 | Warren R Stubbs | 47 | Head | Proprietor | Iowa |
| 85 | Agnes W Stubbs | 47 | Wife | — | Iowa |
| 86 | Helen R Stubbs | 21 | Daughter | — | Iowa |
| 87 | Kenneth J Stubbs | 20 | Son | — | Iowa |
| 88 | Katherine A Stubbs | 18 | Daughter | — | Iowa |
| 89 | Mary B Stubbs | 16 | Daughter | — | Iowa |
| 90 | Jean Stubbs | 10 | Daughter | — | Iowa |
| 91 | Curtis W De Wolf | 83 | Father-in-law | — | Vermont |
| 92 | Mary C De Wolf | 83 | Mother-in-law | — | Vermont |
| 93 | Nathan Wilner | 65 | Head | Real Estate | Poland |
| 94 | Jennie Wilner | 64 | Wife | — | Poland |
| 95 | Louis Wilner | 43 | Son | Clerk | Iowa |
| 96 | Frank Wilner | 41 | Son | Asst Manager | Iowa |
| 97 | Morris M Wilner | 39 | Son | President | Iowa |
| 98 | Elizabeth Wilner | 35 | Daughter | — | Iowa |
| 99 | Sadie Wilner | 28 | Daughter | — | Iowa |
| 100 | Robert Wilner | 24 | Son | Asst Manager | Iowa |
Pedigree Summary
Richard + 3 siblings
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)