RB
Roy Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Roy Brown across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Charley & Charles — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Brown |
| Given Name | Roy S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | oil sta tender |
| Industry | bulk oil sta |
| Class of Worker | PW |
| Hours Worked | 66 |
| Income (1939) | 792 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Oil Sta Tender |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1913 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Charley Brown | Head | — | 54 | ~1886 |
| Kenneth Brown | Son | — | 12 | ~1928 |
| Roy Brown | Son | — | 27 | ~1913 |
| Fern Brown | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Polk, Iowa
Son, age 7
Polk, Iowa · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Nebraska |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 17
Polk, Iowa · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Nebraska |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 27
Polk-County, Iowa · implied b. ~1913 — 4 household members
| Surname | Brown |
| Given Name | Roy S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | oil sta tender |
| Industry | bulk oil sta |
| Class of Worker | PW |
| Hours Worked | 66 |
| Income (1939) | 792 |
| 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 Roy Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charley Brown (~0.92 confidence) and father Charles Brown (~0.92 confidence) and father Charlie Brown (~0.92 confidence) and mother Fern Brown (~0.92 confidence) and mother Fern Brown (~0.92 confidence) and mother Irma Brown (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charley Brown
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Charles Brown
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Charlie Brown
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Fern Brown
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Fern Brown
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Irma Brown
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Brown
Son · 1940 · age 27 · b. ~1913 · Iowa
★ You are viewing this record
Sibling
Kenneth Brown
Sibling · 1940 · age 12
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
39 people indexed on this census page (nara:1940:m-t0627-01197-00119)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jerry R Card | 4 | Son | — | Iowa |
| 42 | Harry A Card | 3 | Son | — | Iowa |
| 43 | Joanne L Card | 3 | Daughter | — | Iowa |
| 44 | Dorothy E Batty | 22 | Sister-in-law | Kitchen Worker | Iowa |
| 45 | Joseph Geddes | 62 | Head | Miner | Scotland |
| 46 | Elizabeth P Geddes | 63 | Wife | — | Scotland |
| 47 | Joane Pante | 5 | Granddaughter | — | Iowa |
| 48 | William S Wharton | 61 | Head | Fireman | Iowa |
| 49 | Mary Wharton | 62 | Wife | — | Iowa |
| 50 | Kenneth M Rhenport | 30 | Head | Machine Oiler | Iowa |
| 51 | Lola M Rhenport | 30 | Wife | — | Iowa |
| 52 | Richard W Rhenport | 11 | Son | — | Iowa |
| 53 | Arthur W Madden | 55 | Head | Mail Carrier | Iowa |
| 54 | Lillian A Madden | 53 | Wife | — | Iowa |
| 55 | Clarence F Mullen | 33 | Head | Laborer | Iowa |
| 56 | Nina E Mullen | 34 | Wife | — | Iowa |
| 57 | Robert P Brown | 15 | Step son | — | Iowa |
| 58 | Gertrude Thompson | 28 | Head | Poultry Dressing | South Dakota |
| 59 | Emmett F Keiran | 42 | Head | Carpenter | Missouri |
| 60 | Eunice F Keiran | 41 | Wife | — | Iowa |
| 61 | Kenneth K Keiran | 15 | Son | — | Iowa |
| 62 | Harold A Keiran | 10 | Son | — | Iowa |
| 63 | Donald E Keiran | 6 | Son | — | Iowa |
| 64 | James E Eastman | 49 | Head | Brick Molder | Iowa |
| 65 | Ellen Eastman | 50 | Wife | — | Iowa |
| 66 | Donald Eastman | 24 | Son | Truck Driver | Iowa |
| 67 | Carl Hartzer | 42 | Head | Driver Meat Truck | Iowa |
| 68 | Clara Hartzer | 38 | Wife | — | Iowa |
| 69 | Carl Hartzer | 19 | Son | Retail Clerk | Iowa |
| 70 | Robert Hartzer | 11 | Son | — | Iowa |
| 71 | James R Hartzer | 0 | Son | — | Iowa |
| 72 | John B Newbrough | 35 | Head | Animal Dresser | Iowa |
| 73 | Bonnie Mae Newbrough | 32 | Wife | — | Iowa |
| 74 | Joy A Newbrough | 12 | Daughter | — | Iowa |
| 75 | Dona J Newbrough | 5 | Daughter | — | Iowa |
| 76 | Charley W Brown | 54 | Head | Street Car Operator | Pennsylvania |
| 77 | Fern C Brown | 47 | Wife | — | Nebraska |
| 78 | Roy S Brown THIS PERSON | 27 | Son | Oil Sta Tender | Iowa |
| 79 | Kenneth C Brown | 12 | Son | — | Iowa |
Pedigree Summary
Roy + 1 sibling
Gen 1 · 6 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)