IB
Ida Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ida Brown across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 10-person household.
Age 52
b. ~1888
Female
Spouse
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Brown |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1888 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| Veronica Brown | Daughter | — | 15 | ~1925 |
| Margaret Brown | Daughter | — | 19 | ~1921 |
| James Brown | Head | — | 56 | ~1884 |
| Victoria Johnson | Other | — | 20 | ~1920 |
| Thomas Brown | Son | — | 13 | ~1927 |
| Harry Brown | Son | — | 24 | ~1916 |
| William Brown | Son | — | 31 | ~1909 |
| George Brown | Son | — | 29 | ~1911 |
| Jerome Brown | Son | — | 11 | ~1929 |
| Ida Brown | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Cook, Illinois
Spouse, age 32
Cook, Illinois · implied b. ~1888 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Year of Naturalization | 1903 |
| Birthplace (normalized) | germany |
1930
Cook, Illinois
Spouse, age 42
Cook, Illinois · implied b. ~1888 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Age at First Marriage | 19 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Veteran | No |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Cook-County, Illinois
Spouse, age 52
Cook-County, Illinois · implied b. ~1888 — 10 household members
| Surname | Brown |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Ida Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Brown
Spouse · 1940 · age 52 · b. ~1888 · 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-t0627-00987-00305)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Mccomb | 45 | Head | Operator | Ohio |
| 2 | Viola Mccomb | 40 | Wife | — | Ohio |
| 3 | Frank Jr. Mccomb | 20 | Son | Apprentice | Michigan |
| 4 | William Mccomb | 18 | Son | Advertising | Michigan |
| 5 | Betty Mccomb | 14 | Daughter | — | Michigan |
| 6 | Donald Mccomb | 13 | Son | — | Michigan |
| 7 | Jacob Stevens | 57 | Head | Hand Nailer | Illinois |
| 8 | Alice Stevens | 33 | Wife | — | Illinois |
| 9 | Doris Frisbie | 42 | Head | Housework | Ohio |
| 10 | Henry Frisbie | 25 | Son | Tool Grinder | Illinois |
| 11 | Robert Frisbie | 15 | Son | — | Illinois |
| 12 | Agnes Gates | 49 | Head | — | Illinois |
| 13 | Agnes A. Gates | 27 | Daughter | Secretary | Illinois |
| 14 | James Brown | 56 | Head | Truck Driver | Illinois |
| 15 | Ida Brown THIS PERSON | 52 | Wife | — | Germany |
| 16 | William Brown | 31 | Son | Chauffeur | Illinois |
| 17 | George Brown | 29 | Son | Truck Driver | Illinois |
| 18 | Harry Brown | 24 | Son | Laborer | Illinois |
| 19 | Margaret Brown | 19 | Daughter | Packer | Illinois |
| 20 | Veronica Brown | 15 | Daughter | — | Illinois |
| 21 | Thomas Brown | 13 | Son | — | Illinois |
| 22 | Jerome Brown | 11 | Son | — | Illinois |
| 23 | Victoria Johnson | 20 | Niece | Filing Clerk | Illinois |
| 24 | Extra Line | None | — | — | — |
| 25 | Duncan Mc Donald | 76 | Head | Bar Tender | Canada English |
| 26 | Josef Walch | 55 | Head | Maintenance | Germany |
| 27 | Elma Walch | 55 | Wife | — | Germany |
| 28 | Alfred Schmidt | 59 | Brother in law | — | Germany |
| 29 | Emma Smith | 67 | Mother | — | Missouri |
| 30 | Margaret Brennan | 35 | — | Clerk | Irish Free State |
| 31 | Arthur Mangerich | 40 | Head | Decorator | Michigan |
| 32 | Alice Mangerich | 32 | Wife | Saleslady | Illinois |
| 33 | Lewis Curil | 49 | Head | Laborer | Italy |
| 34 | Daniel Nerliky | 53 | Head | Iron Worker | Germany |
| 35 | Mary Nerliky | 45 | Wife | — | Illinois |
| 36 | Charles Dubes | 32 | Head | General Office | Illinois |
| 37 | Evelyn Dubes | 27 | Wife | — | Illinois |
| 38 | Richard Dubes | 5 | Son | — | Illinois |
| 39 | Bruno Bychowski | 53 | Brother in law | Welder | Illinois |
| 40 | Anna Bychowski | 48 | Mother in law | Cashier | Illinois |
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)