AJ
Ada Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Ada Johnson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Female
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Johnson |
| Given Name | Ada O. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Rockford |
| Est. Birth Year | ~1883 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ada | Age | Birth yr |
|---|---|---|---|---|
| Lillian Johnson | Daughter | — | 20 | ~1920 |
| Ada Johnson | Head | — | 57 | ~1883 |
| Virginia Hurd | Other | — | 23 | ~1917 |
| Marshall Johnson | Son | — | 17 | ~1923 |
Census Appearances
1920
Winnebago, Illinois
Spouse, age 37
Winnebago, Illinois · implied b. ~1883 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1903 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | sweden |
1930
Winnebago, Illinois
Other, age 48
Winnebago, Illinois · implied b. ~1882 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ada |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Sweden |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Winnebago-County, Illinois
Head, age 57
Winnebago-County, Illinois · implied b. ~1883 — 4 household members
| Surname | Johnson |
| Given Name | Ada O. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Ada Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Johnson
Head · 1940 · age 57 · b. ~1883 · 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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00913-00724)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Roger Anderson | 14 | Son | — | Illinois |
| 42 | Robert S. Swanson | 64 | Head | — | Sweden |
| 43 | Frieda C. Swanson | 62 | Wife | — | Sweden |
| 44 | Emilia Johnson | 62 | Sister | — | Sweden |
| 45 | Gunnard Anderson | 51 | Head | Painter | Sweden |
| 46 | Dora Anderson | 42 | Wife | — | Norway |
| 47 | Anna C. Anderson | 20 | Daughter | Cashier | Missouri |
| 48 | Gordon Anderson | 18 | Son | Finisher | Missouri |
| 49 | Harry Anderson | 17 | Son | — | Missouri |
| 50 | Doris Anderson | 10 | Daughter | — | Missouri |
| 51 | Ada O. Johnson THIS PERSON | 57 | Head | — | Sweden |
| 52 | Lillian Johnson | 20 | Daughter | Inspector | Illinois |
| 53 | Marshall Johnson | 17 | Son | Apprentice Machinist | Minnesota |
| 54 | Virginia Hurd | 23 | Lodger | Machine Operator | Illinois |
| 55 | Martin Ode | 52 | Head | Retailer | Sweden |
| 56 | Sara Ode | 44 | Wife | — | Illinois |
| 57 | Doris Ode | 14 | Daughter | — | Illinois |
| 58 | Lucille Ode | 11 | Daughter | — | Illinois |
| 59 | Anna Strandquist | 76 | Head | — | Sweden |
| 60 | Erick Stohlquist | 53 | Head | Machinist | Sweden |
| 61 | Elizabeth Stohlquist | 48 | Wife | — | Sweden |
| 62 | Roger Stohlquist | 14 | Son | — | Illinois |
| 63 | Dr. Alfred Orlean | 69 | Head | Doctor Of Medicine | Sweden |
| 64 | Ellen H. Orlean | 64 | Wife | — | Illinois |
| 65 | Helen Orlean | 37 | Daughter | — | Illinois |
| 66 | Hanna Peterson | 74 | Head | — | Sweden |
| 67 | Marion Kehl | 33 | Head | Molder | Illinois |
| 68 | Gertrude Kehl | 35 | Wife | — | Wisconsin |
| 69 | Herman Bergmark | 47 | Head | Tool Maker | Sweden |
| 70 | Ruth Bergmark | 44 | Wife | Housekeeper | Sweden |
| 71 | Viola Bergmark | 20 | Daughter | Telephone Operator | Illinois |
| 72 | Lucille Bergmark | 15 | Daughter | — | Illinois |
| 73 | John Micklo | 26 | Head | Hosiery Knitter | Illinois |
| 74 | Virginia Micklo | 27 | Wife | — | Illinois |
| 75 | N. P. Nelson | 74 | Head | Lawyer | Sweden |
| 76 | Caroline B. Nelson | 63 | Wife | — | Illinois |
| 77 | Carl Carlson | 70 | Head | — | Sweden |
| 78 | Celia Carlson | 52 | Wife | — | Illinois |
| 79 | Willard Carlson | 23 | Son | Apprentice Machinist | Illinois |
| 80 | Reuben Carlson | 19 | Son | Apprentice Machinist | 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)