DB
David Brown — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this David Brown across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Abraham & Jennie — first a son (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Brown |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| 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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Abraham Brown | Head | — | 52 | ~1878 |
| Bert White | Other | — | 9 | ~1921 |
| David Brown | Son | — | 15 | ~1915 |
| Alexander Brown | Son | — | 23 | ~1907 |
| Philip Brown | Son | — | 12 | ~1918 |
| Frederick Brown | Son | — | 19 | ~1911 |
| Jennie Brown | Spouse | — | 46 | ~1884 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1915 — 7 household members
| Surname | Brown |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 26
Cook-County, Illinois · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Dave |
| Relationship to Head | Step-son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Bed Spring Mfg |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1100 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 David Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Abraham Brown (~0.92 confidence) and mother Jennie Brown (~0.92 confidence) and father Samuel Brown (~0.92 confidence) and mother Ida Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Abraham Brown
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Jennie Brown
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
Samuel Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ida Brown
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Brown
Son · 1930 · age 15 · b. ~1915 · Illinois
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Sibling
Philip Brown
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Brown
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alexander Brown
Sibling · 1930 · age 23
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
22 people indexed on this census page (ia:1930:illinoiscensus00reel484:0576)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bertha Mcgregor | 42 | Wife | Servant | Illinois |
| 52 | Hermine Tandler | 68 | Head | None | Czechoslovakia |
| 53 | Hermine Tandler | 36 | Daughter | Stock Clerk | Wisconsin |
| 54 | Michael Bell | 26 | Head | Order Picker | Pennsylvania |
| 55 | Adeline Bell | 21 | Wife | None | Ohio |
| 56 | Earle Bell | 3 | Son | None | Ohio |
| 57 | Philip Panagopoulos | 50 | Head | Salesman | Greece |
| 58 | Helen Panagopoulos | 45 | Wife | None | Greece |
| 59 | Nellie Panagopoulos | 8 | Daughter | None | Illinois |
| 60 | Abraham Brown | 52 | Head | Shoe Store | Russia |
| 61 | Jennie Brown | 46 | Wife | Sales Lady | Russia |
| 62 | Alexander Brown | 23 | Son | Intern | Illinois |
| 63 | Frederick Brown | 19 | Son | Shoe Salesman | Illinois |
| 64 | David Brown THIS PERSON | 15 | Son | None | Illinois |
| 65 | Philip Brown | 12 | Son | None | Illinois |
| 66 | Bert White | 9 | Boarder | None | Illinois |
| 67 | Clara Wilhelm | 59 | Head | Homemaker | Germany |
| 68 | Elizabeth Wilhelm | 30 | Daughter | Sales Clerk | Illinois |
| 69 | Anna Wilhelm | 27 | Daughter | Cashier | Illinois |
| 70 | Hattie Hunenwinkel | 36 | Head | Clerk | Illinois |
| 71 | George Hunenwinkel | 8 | Son | None | Illinois |
| 72 | Ellen Hunenwinkel | 6 | Daughter | None | Illinois |
Pedigree Summary
David + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)