TB
Theodore Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Theodore Brown across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Theodore & Theodore — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Brown |
| Given Name | Theodore Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Bell Hop |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 700 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Bell Hop |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Alice Brown | Spouse | — | 46 | ~1894 |
| Arthur Brown | Son | — | 20 | ~1920 |
| Theodore Brown | Son | — | 23 | ~1917 |
| Theodore Brown | Head | — | 50 | ~1890 |
| Evelyn Brown | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Polk, Iowa
Son, age 2
Polk, Iowa · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| 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 |
1930
Polk, Iowa
Son, age 12
Polk, Iowa · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Theodore P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 |
1940
Polk-County, Iowa
Son, age 23
Polk-County, Iowa · implied b. ~1917 — 5 household members
| Surname | Brown |
| Given Name | Theodore Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Bell Hop |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 700 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Theodore Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Theodore Brown (~0.92 confidence) and father Theodore Brown (~0.92 confidence) and mother Alice Brown (~0.92 confidence) and mother Alice Brown (~0.92 confidence) and mother Alice Brown (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Theodore Brown
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Theodore Brown
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Alice Brown
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Alice Brown
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Alice Brown
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Brown
Son · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Evelyn Brown
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Brown
Sibling · 1940 · age 20
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
1940 US Federal Census — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01193-00394)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John C. Wade | 58 | Head | Salesman | Iowa |
| 42 | Lenora Wade | 52 | Wife | — | Iowa |
| 43 | Fred L. Baldwin | 32 | Son-in-law | Packing Engineer | Pennsylvania |
| 44 | Mary Baldwin | 32 | Daughter | — | Iowa |
| 45 | Lullen Wall | 58 | Head | Specialty Saleslady | Iowa |
| 46 | Ruth Wall | 30 | Daughter | Stenographer | Iowa |
| 47 | L. Martin Perriton | 28 | Lodger | Clerk | Texas |
| 48 | Hallie P. Brown | 33 | Lodger | Sheet Metal Worker | Kansas |
| 49 | Herman Brandt | 44 | Head | Professor Of College | Nebraska |
| 50 | Katherine Brandt | 38 | Wife | — | Nebraska |
| 51 | Leo E. Brandt | 15 | Son | — | Ohio |
| 52 | Alvin Maynard | 33 | Head | Manager Of Printing Co. | Iowa |
| 53 | Gladys Maynard | 30 | Wife | Multigrapher | Minnesota |
| 54 | Phyllis Maynard | 10 | Daughter | — | Iowa |
| 55 | Marylyn Maynard | 6 | Daughter | — | Iowa |
| 56 | Roger Bennett | 51 | Head | Salesman | Iowa |
| 57 | Margaret Bennett | 58 | Wife | — | Iowa |
| 58 | Minnie Betterley | 68 | Head | — | Pennsylvania |
| 59 | Lucilla Betterley | 27 | Daughter | Stenographer | Iowa |
| 60 | Theodore Brown | 50 | Head | Salesman | Iowa |
| 61 | Alice Brown | 46 | Wife | — | Iowa |
| 62 | Theodore Jr. Brown THIS PERSON | 23 | Son | Bell Hop | Iowa |
| 63 | Arthur J. Brown | 20 | Son | Repair Dept. | Iowa |
| 64 | Evelyn Brown | 11 | Daughter | — | Iowa |
| 65 | Samuel Kurtz | 69 | Head | Laborer | Illinois |
| 66 | Lizzie Kurtz | 70 | Wife | — | Iowa |
| 67 | Ruth Eldridge | 22 | Granddaughter | Envelope Machinist | Iowa |
| 68 | Jack Eldridge | 15 | Grandson | — | Iowa |
| 69 | Harlan Bettis | 23 | Lodger | Bookkeeper | Iowa |
| 70 | Pearl Bettis | 20 | Lodger | Stenographer | Illinois |
| 71 | James H. Hiner | 42 | Head | Road Operator | Texas |
| 72 | Cleo Hiner | 41 | Wife | — | Indiana |
| 73 | Grace Munden | 64 | Mother-in-law | — | Iowa |
| 74 | Betty Jo Hiner | 13 | Daughter | — | Illinois |
| 75 | James Hiner | 18 | Son | — | Texas |
| 76 | Charles Housh | 50 | Head | Farmer & Salesman | Illinois |
| 77 | Eleanor M. Housh | 50 | Wife | — | Nebraska |
| 78 | Betty Housh | 18 | Daughter | — | Iowa |
| 79 | Frederick Blanck | 29 | Head | Salesman | Illinois |
| 80 | Maurine Blanck | 27 | Wife | — | Illinois |
Pedigree Summary
Theodore + 2 siblings
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 1940 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)