RB
Ralph Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this Ralph Brown across the 1910, 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 4-person household.
Age 61
b. ~1879
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Brown |
| Given Name | Ralph A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Machinist |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 3263 |
| Highest Grade | C 1 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Machinist |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1879 |
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 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Sara Brown | Daughter | — | 29 | ~1911 |
| Ralph Brown | Head | — | 61 | ~1879 |
| Elvin Brown | Other | — | 3 | ~1937 |
| Catherine Brown | Spouse | — | 60 | ~1880 |
Census Appearances
1910
Scott, Iowa
Head, age 31
Scott, Iowa · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Years Married | 7 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Scott, Iowa
Head, age 41
Scott, Iowa · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Ralph A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Head, age 51
Scott, Iowa · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Ralph A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Salesman |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Head, age 61
Scott-County, Iowa · implied b. ~1879 — 4 household members
| Surname | Brown |
| Given Name | Ralph A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | Machinist |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 3263 |
| Highest Grade | C 1 |
| 1935 Residence | Same house |
| 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 Ralph Brown across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ralph Brown
Head · 1940 · age 61 · b. ~1879 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01203-00296)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louise C. Lage | 24 | daughter | Librarian | Iowa |
| 42 | Edward Carmody | 53 | Head | Assistant Postmaster | Missouri |
| 43 | Loretta Carmody | 50 | Wife | — | Iowa |
| 44 | Albert Tate | 33 | Head | Salesman | Iowa |
| 45 | Kathryn Tate | 33 | Wife | Project Supervisor | Iowa |
| 46 | Susan Tate | 5 | daughter | — | Iowa |
| 47 | Marie Jacobs | 18 | maid | Maid | Iowa |
| 48 | David H. Ross | 52 | Head | Salesman | Illinois |
| 49 | Violet Ross | 46 | Wife | — | Iowa |
| 50 | Marjorie L. Ross | 16 | daughter | — | Iowa |
| 51 | Gust Thiel | 70 | father-in-law | — | Iowa |
| 52 | Annie Thiel | 70 | mother-in-law | — | Iowa |
| 53 | Henry Habas | 72 | Head | — | Germany |
| 54 | Clara Habas | 68 | Wife | — | Iowa |
| 55 | Orie E. Johnson | 54 | Head | Physical Director | Iowa |
| 56 | Marie Johnson | 53 | Wife | — | Iowa |
| 57 | Elizabeth Johnson | 29 | daughter | Clerk | Iowa |
| 58 | Jean Johnson | 16 | daughter | — | Iowa |
| 59 | Amelia Schmidt | 79 | mother-in-law | — | Illinois |
| 60 | Clara L. Schroeder | 56 | Head | — | Illinois |
| 61 | Chester Corman | 33 | Lodger | Salesman | Iowa |
| 62 | Charles H. Holmgren | 59 | Head | Dept. Manager | Sweden |
| 63 | Anna Holmgren | 51 | Wife | — | Germany |
| 64 | Leonard C. Holmgren | 25 | son | Clerk | Iowa |
| 65 | Eldred H. Smith | 63 | Head | Meat Cutter | Pennsylvania |
| 66 | Olga Smith | 63 | Wife | — | Iowa |
| 67 | Edith H. Smith | 24 | daughter | Stenographer | Iowa |
| 68 | Eldred Smith | 30 | son | — | Iowa |
| 69 | Howard Reynolds | 54 | Head | Tool Checker | Illinois |
| 70 | Lillian Reynolds | 46 | Wife | — | Nebraska |
| 71 | Barbara Reynolds | 20 | daughter | Stenographer | Iowa |
| 72 | Florence Norton | 68 | Head | Saleslady | Indiana |
| 73 | Carolyn Otis | 68 | Head | — | Ohio |
| 74 | Ellen Hamilton | 27 | protégé | Nurse | Iowa |
| 75 | Eloise Achteraf | 23 | Lodger | Secretary | Illinois |
| 76 | Ralph A. Brown THIS PERSON | 61 | Head | Machinist | Iowa |
| 77 | Catherine O. Brown | 60 | Wife | — | Iowa |
| 78 | Sara Ruth Brown | 29 | daughter | Clerk | Iowa |
| 79 | Elvin Leroy Brown | 3 | Grandson | — | Iowa |
| 80 | Hugo W. Wahl | 43 | Head | Engineer | Iowa |
Related Census Records
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)