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Clarence Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Clarence Brown across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Clarence & Lillian — first a head (b.~1898), then head of a 6-person household.
Age 42
b. ~1898
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Brown |
| Given Name | Clarence F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Physician |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | C-5 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Physician |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1898 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Clarence Brown | Head | — | 42 | ~1898 |
| Winifred Tobin | Other | — | 29 | ~1911 |
| Anne Flynn | Other | — | 64 | ~1876 |
| Robert Brown | Son | — | 11 | ~1929 |
| George Brown | Son | — | 15 | ~1925 |
| Margaret Brown | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Clarence F. G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Cook, Illinois
Head, age 32
Cook, Illinois · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 26 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Physician |
| Industry | medicine |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 175 |
| Radio Set | R |
| Veteran | Yes WW |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Cook-County, Illinois
Head, age 42
Cook-County, Illinois · implied b. ~1898 — 6 household members
| Surname | Brown |
| Given Name | Clarence F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Physician |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | C-5 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Clarence Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clarence Brown (~0.92 confidence) and mother Lillian Brown (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Brown
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Lillian Brown
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Brown
Head · 1940 · age 42 · b. ~1898 · Illinois
★ 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00928-00310)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William G. Monia | 62 | Lodger | Buyer | Pennsylvania |
| 2 | Dolores M. Sullivan | 50 | Lodger | Stenographer | Illinois |
| 3 | Meyer Rothschild | 75 | Head | Salesmanager | Germany |
| 4 | Ernestine Rothschild | 67 | Wife | — | Germany |
| 5 | Helen Rothschild | 41 | Daughter | Office Clerk | Illinois |
| 6 | Robert Rothschild | 13 | Grandson | — | Illinois |
| 7 | Margo Wassllach | 19 | Niece | — | Germany |
| 8 | David Cochran | 74 | Head | Attorney | Wisconsin |
| 9 | Georgia Cochran | 58 | Wife | — | New York |
| 10 | Florence Huston | 58 | Servant | Maid | Washington D.C. |
| 11 | Walton J. Jensen | 27 | Head | Clerk | Illinois |
| 12 | Miriam Jensen | 23 | Wife | — | Tennessee |
| 13 | Clarence F. Brown THIS PERSON | 42 | Head | Physician | Utah |
| 14 | Margaret Brown | 39 | Wife | — | Illinois |
| 15 | George M. Brown | 15 | Son | — | Illinois |
| 16 | Robert J. Brown | 11 | Son | — | Illinois |
| 17 | Anne Flynn | 64 | Servant | Nurse | Iowa |
| 18 | Winifred Tobin | 29 | Servant | Maid | Ireland Eire |
| 19 | Agnes Davis | 63 | Head | — | Illinois |
| 20 | Jerry Spero | 33 | Head | Manager | Ohio |
| 21 | Julia Spero | 28 | Wife | — | New York |
| 22 | Peggy Spero | 2 | Daughter | — | Illinois |
| 23 | Donald Spero | 0 | Son | — | Illinois |
| 24 | Etta Brenner | 51 | Head | — | Nebraska |
| 25 | Maurice Brenner | 25 | Son | Salesman | Pennsylvania |
| 26 | Natalie Nadra | 75 | Mother-in-law | — | Germany |
| 27 | Mary Ann Burwell | 22 | Servant | Maid | Indiana |
| 28 | Robert Rosenbaum | 50 | Head | Attorney | Illinois |
| 29 | Rae Rosenbaum | 58 | Wife | — | Michigan |
| 30 | Fannie O. Ostro | 37 | Daughter | — | Illinois |
| 31 | Bernita Ostro | 7 | Daughter | — | Illinois |
| 32 | Gloria Ostro | 5 | Daughter | — | Illinois |
| 33 | Albert Ostro | 40 | Son-in-law | Merchant | Illinois |
| 34 | Norman Leipziger | 76 | Uncle | Barber | Germany |
| 35 | Editha Hudson | 34 | Nurse | Nurse | Illinois |
| 36 | May Hanrahan | 53 | Servant | Housekeeper | England |
| 37 | Jacob S. Stern | 56 | Head | Secretary & Treasurer | Illinois |
| 38 | Edith A. Stern | 52 | Wife | — | Illinois |
| 39 | Elizabeth D. Stern | 25 | Daughter | — | Illinois |
| 40 | Anna Beckwall | 53 | Servant | Maid | Sweden |
Pedigree Summary
Clarence
Gen 1 · 2 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)