CB
Chas Brown — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Chas Brown across the 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 8-person household.
Age 19
b. ~1911
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Brown |
| Given Name | Chas R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Tractor Operator |
| Industry | Road Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Tractor Operator |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1911 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Chas | Age | Birth yr |
|---|---|---|---|---|
| Charles Chank | Other | — | 64 | ~1866 |
| Chas Brown | Son | — | 19 | ~1911 |
| Max Brown | Son | — | 9 | ~1921 |
| Walter Palmer | Other | — | 24 | ~1906 |
| Bernidene Brown | Daughter | — | 7 | ~1923 |
| Donald Brown | Son | — | 17 | ~1913 |
| Clarence Brown | Head | — | 46 | ~1884 |
| Mae Brown | Other | — | 41 | ~1889 |
Census Appearances
1930
Polk, Iowa
Son, age 19
Polk, Iowa · implied b. ~1911 — 8 household members
| Surname | Brown |
| Given Name | Chas R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Tractor Operator |
| Industry | Road Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 29
Polk-County, Iowa · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Charlie |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 390 |
| Highest Grade | No 6 |
| 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 Chas Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Chas Brown
Son · 1930 · age 19 · b. ~1911 · Iowa
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Sibling
Bernidene Brown
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Max Brown
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Brown
Sibling · 1930 · age 17
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
48 people indexed on this census page (ia:1930:iowacensus00reel674:0432)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | George C. Brazelton | 100 | Father | — | Illinois |
| 52 | Clarence W. Brown | 46 | Head | Station Attendant | Iowa |
| 53 | Mae E. Brown | 41 | Wife-H | — | Iowa |
| 54 | Chas R. Brown THIS PERSON | 19 | Son | Tractor Operator | Iowa |
| 55 | Donald C. Brown | 17 | Son | — | Iowa |
| 56 | Max M. Brown | 9 | Son | — | Iowa |
| 57 | Bernidene M. Brown | 7 | Daughter | — | Iowa |
| 58 | Charles W. Chank | 64 | Lodger | — | Iowa |
| 59 | Walter A. Palmer | 24 | Lodger | Mechanic | Iowa |
| 60 | Henry Karsell | 42 | Head | Tailor | Russia |
| 61 | Carrie Karsell | 40 | Wife-H | — | Iowa |
| 62 | Dorothy C. Karsell | 18 | Daughter | Clerical | Iowa |
| 63 | Henry L. Karsell | 11 | Son | — | Iowa |
| 64 | Edward D. Finch | 68 | Head | Registrar | Iowa |
| 65 | Louise T. Finch | 64 | Wife-H | — | Iowa |
| 66 | Margaret Johnson | 37 | Lodger | Clerical | Iowa |
| 67 | Dorothy D. Welch | 23 | Lodger | Stenographer | Iowa |
| 68 | William C. Lane | 29 | Head | Moulder | England |
| 69 | Margaret L. Lane | 27 | Wife-H | — | England |
| 70 | Margaret R. Lane | 8 | Daughter | — | Iowa |
| 71 | Pauline L. Lane | 7 | Daughter | — | Iowa |
| 72 | Horace Lane | 5 | Son | — | Iowa |
| 73 | Thomas Kerr | 33 | Head | Salesman | Missouri |
| 74 | Dorothy Kerr | 22 | Wife-H | — | Missouri |
| 75 | William S. Clarke | 45 | Head | Accountant | Massachusetts |
| 76 | Hazel F. Clarke | 36 | Wife-H | Baker | Maine |
| 77 | William H. Clarke | 13 | Son | — | Massachusetts |
| 78 | Charles A. Clarke | 9 | Son | — | Massachusetts |
| 79 | Minnie E. Clarke | 7 | Daughter | — | Iowa |
| 80 | Lawrence Wright | 46 | Head | Proprietor | Iowa |
| 81 | Libbie Wright | 46 | Wife-H | — | New York |
| 82 | Rosaland E. Boley | 12 | Daughter | — | Illinois |
| 83 | Hercules Warner | 66 | Head | — | Iowa |
| 84 | Laura Warner | 59 | Wife-H | — | Iowa |
| 85 | Mark A. Summey | 24 | Head | Salesman | Iowa |
| 86 | Ione L. Summey | 22 | Wife-H | — | Iowa |
| 87 | Duane J. Summey | 2 | Son | — | Iowa |
| 88 | Lillie O. Schuch | 64 | Head-H | — | Indiana |
| 89 | Charles E. Schuch | 62 | Husband | — | Pennsylvania |
| 90 | George W. Smith | 66 | Head | Proprietor | Illinois |
| 91 | Kate H. Smith | 61 | Wife-H | Practitioner | Illinois |
| 92 | Elza W. Adamson | 61 | Head | Salesman | Iowa |
| 93 | Mary L. Adamson | 58 | Wife-H | — | Iowa |
| 94 | Velma Adamson | 32 | Son | Salesman | Iowa |
| 95 | Thelma Adamson | 20 | Daughter | — | Iowa |
| 96 | Joseph W. Riley | 74 | Head | — | Iowa |
| 98 | Gertrude M. | 41 | Daughter | Nurse | Iowa |
| 99 | Mable C. | 35 | Daughter | Bookkeeper | Iowa |
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)