RB
Richard Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Iowa-County, Iowa
Our Model Tree links this Richard Brown across the 1920, 1930 and 1940 US Censuses in Iowa-County, Iowa (XGBoost, ~Confirmed), with identified parents A & Aubrey — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Iowa-County, Iowa |
| Surname | Brown |
| Given Name | Richard M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marengo City |
| 1935 Residence (County) | Iowa |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail Lumber |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 298 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Salesman |
| Township / Ward | Marengo City |
| Est. Birth Year | ~1915 |
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 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| A Brown | Head | — | 58 | ~1882 |
| Richard Brown | Son | — | 25 | ~1915 |
| Louie Brown | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Iowa, Iowa
Son, age 5
Iowa, Iowa · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Richard M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Industry | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Iowa, Iowa
Son, age 15
Iowa, Iowa · implied b. ~1915 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Richard L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Iowa-County, Iowa
Son, age 25
Iowa-County, Iowa · implied b. ~1915 — 3 household members
| Surname | Brown |
| Given Name | Richard M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marengo City |
| 1935 Residence (County) | Iowa |
| Occupation | Salesman |
| Industry | Retail Lumber |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 298 |
| Highest Grade | H-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 Richard Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father A Brown (~0.92 confidence) and father Aubrey Brown (~0.92 confidence) and mother Louisa Brown (~0.92 confidence) and mother Louis Brown (~0.92 confidence) and mother Louie Brown (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
A Brown
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Aubrey Brown
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Louisa Brown
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Louis Brown
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Louie Brown
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Brown
Son · 1940 · age 25 · b. ~1915 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Iowa-County, Iowa
Open full size
1940 US Federal Census — Iowa-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01168-00325)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anistina | 21 | Wife | No | Wisconsin |
| 2 | C. P. Jenkins | 56 | Head | Proprietor Owner | Iowa |
| 3 | Lelia J. Jenkins | 50 | Wife | No | Iowa |
| 4 | Joseph Jenkins | 85 | Father | No | Ohio |
| 5 | Ollie Jacobs | 33 | Head | Proprietor Salesman | Iowa |
| 6 | Vesper Jacobs | 31 | Wife | No | Iowa |
| 7 | Bonnie Jacobs | 11 | Daughter | S | Iowa |
| 8 | Donnie Jacobs | 9 | Son | S | Iowa |
| 9 | Jimmie Jacobs | 7 | Son | S | Iowa |
| 10 | — | None | — | — | — |
| 11 | A. R. Brown | 58 | Head | Partner & Manager | Iowa |
| 12 | Louie Brown | 54 | Wife | No | Iowa |
| 13 | Richard M. Brown THIS PERSON | 25 | Son | Salesman | Iowa |
| 14 | Elizabeth Eichhorn | 81 | Head | No | Germany |
| 15 | William Eichhorn | 46 | Son | Salesman | Iowa |
| 16 | Ernest Davidson | 53 | Head | Salesman | Iowa |
| 17 | Ethel Davidson | 52 | Wife | No | Iowa |
| 18 | Jacob Bach | 72 | Head | No | Wisconsin |
| 19 | Anna M. Bach | 66 | Wife | No | Iowa |
| 20 | Clarence Rathjen | 42 | Head | Partner | Iowa |
| 21 | Irene Rathjen | 39 | Wife | No | Iowa |
| 22 | Wayne M. Rathjen | 20 | Son | Laborer | Iowa |
| 23 | L. B. Simmons | 44 | Head | Partner | Iowa |
| 24 | Lola Simmons | 40 | Wife | No | Iowa |
| 25 | Robert B. Simmons | 19 | Son | New Worker | Iowa |
| 26 | Betty Simmons | 12 | Daughter | S | Iowa |
| 27 | Phyllis Simmons | 10 | Daughter | S | Iowa |
| 28 | J. L. Swift | 58 | Head | Lawyer | Iowa |
| 29 | Myrtle Swift | 59 | Wife | No | Iowa |
| 30 | W. W. Bishop | 66 | Head | Carpenter | Iowa |
| 31 | Elsie Bishop | 54 | Wife | No | Iowa |
| 32 | Helen Bishop | 22 | Daughter | Typist | Iowa |
| 33 | Alex W. Murdock | 61 | Head | Hostler | Michigan |
| 34 | Isabella Murdock | 60 | Wife | No | Scotland |
| 35 | John Kersten | 75 | Lodger | No | Germany |
| 36 | George J. Rathjen | 71 | Head | No | Iowa |
| 37 | Anna M. Rathjen | 67 | Wife | No | Iowa |
| 38 | Marie A. Rathjen | 30 | Daughter | Teacher | Iowa |
| 39 | — | None | — | — | — |
| 40 | E. O. Jones | 50 | Head | Proprietor Owner | Iowa |
Pedigree Summary
Richard
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)