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Ida Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ida Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Ida |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1880 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| John Johnson | Head | — | 67 | ~1873 |
| Robert Johnson | Son | — | 17 | ~1923 |
| Ida Johnson | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Cook, Illinois
Spouse, age 39
Cook, Illinois · implied b. ~1881 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Denmark |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Spouse, age 49
Cook, Illinois · implied b. ~1881 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ida E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 60
Cook-County, Illinois · implied b. ~1880 — 3 household members
| Surname | Johnson |
| Given Name | Ida |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| 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 Ida Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Johnson
Spouse · 1940 · age 60 · b. ~1880 · 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-t0627-01016-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Erin Connor | 15 | daughter | — | Illinois |
| 2 | Anthony Schaefer | 57 | head | Tool Checker | Germany |
| 3 | Cecilia Schaefer | 54 | wife | — | Illinois |
| 4 | John Schaefer | 23 | son | Condenser Assembler | Illinois |
| 5 | George Schaefer | 22 | son | Bookkeeper | Illinois |
| 6 | Anne Marie Schaefer | 15 | daughter | — | Illinois |
| 7 | Lester Britton | 39 | head | Electrician | Illinois |
| 8 | Edna Britton | 43 | wife | — | Illinois |
| 9 | Dorothy Britton | 14 | daughter | — | Illinois |
| 10 | Shirley Britton | 12 | daughter | — | Illinois |
| 11 | William Kroeger | 53 | head | Sausage Maker | Germany |
| 12 | Dora Kroeger | 44 | wife | — | Germany |
| 13 | Hans Kroeger | 24 | son | Base Ball Player | Germany |
| 14 | Philip Hauck | 34 | head | Machinist Stamping Mch | Illinois |
| 15 | Agnes Hauck | 32 | wife | — | Illinois |
| 16 | Philip Jr Hauck | 12 | son | — | Illinois |
| 17 | Lionel Taylor | 70 | head | — | England |
| 18 | Mary Jane Taylor | 72 | wife | — | England |
| 19 | George (A) Schmidt | 46 | head | Sticker On Rollers | Illinois |
| 20 | Myrtle Schmidt | 45 | wife | House Maid | Illinois |
| 21 | Nelson Schmidt | 25 | son | Brass Planing Machinist | Illinois |
| 22 | Edward Schmidt | 24 | son | Milk Truck Driver-Helper | Illinois |
| 23 | Howard Gruber | 26 | head | Laundry Driver-Salesman | Illinois |
| 24 | Isabel Gruber | 23 | wife | — | Illinois |
| 25 | Larry Gruber | 3 | son | — | Illinois |
| 26 | Philip Yunker | 51 | head | Machinist | Illinois |
| 27 | Anna Yunker | 52 | wife | — | Luxemburg |
| 28 | Julia Biren | 79 | mother in law | — | Luxemburg |
| 29 | Philip Niemerg | 37 | head | Supt Book Binder Shop | Illinois |
| 30 | Marie Niemerg | 38 | wife | — | Illinois |
| 31 | James Niemerg | 9 | son | — | Illinois |
| 32 | Paul Niemerg | 8 | son | — | Illinois |
| 33 | Joan Niemerg | 7 | daughter | — | Illinois |
| 34 | Wilma Niemerg | 4 | daughter | — | Illinois |
| 35 | Donald Niemerg | 2 | son | — | Illinois |
| 36 | Lucella Warman | 16 | niece | — | Illinois |
| 37 | John Johnson | 67 | head | Paper Cutter | Sweden |
| 38 | Ida Johnson THIS PERSON | 60 | wife | — | Illinois |
| 39 | Robert Johnson | 17 | son | — | Illinois |
| 40 | Chester Caleb | 43 | head | Press Feeder | Ohio |
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)