EO
Emma Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Emma Olson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 2-person household.
Age 71
b. ~1869
Female
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1869 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Emma | Age | Birth yr |
|---|---|---|---|---|
| Emma Olson | Head | — | 71 | ~1869 |
| Elna Olson | Daughter | — | 31 | ~1909 |
Census Appearances
1920
Winnebago, Illinois
Spouse, age 47
Winnebago, Illinois · implied b. ~1873 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Winnebago, Illinois
Head, age 59
Winnebago, Illinois · implied b. ~1871 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Boarding House |
| Industry | Keeper |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 11000 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Winnebago-County, Illinois
Head, age 71
Winnebago-County, Illinois · implied b. ~1869 — 2 household members
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 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 Emma Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Emma Olson
Head · 1940 · age 71 · b. ~1869 · 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-t0627-00915-00133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roald | 18 | Son | Janitor Work | Illinois |
| 2 | Lois Roald | 14 | Daughter | — | Illinois |
| 3 | Augusta Roald | 12 | Daughter | — | Illinois |
| 4 | Frank Ward | 51 | Head | Manager | Illinois |
| 5 | Jane Ward | 51 | Wife | — | Illinois |
| 6 | Frank Jr. Ward | 22 | Son | Draftsman | Illinois |
| 7 | Eleanor Ward | 18 | Daughter | — | Illinois |
| 8 | Dr. E. L. Fernald | 48 | Lodger | Osteopath D.O. | Massachusetts |
| 9 | Edwin Hennig | 51 | Head | Factory Work | Wisconsin |
| 10 | Bertha Hennig | 54 | Wife | — | Germany |
| 11 | Robert Jones | 28 | Head | Drugstore Clerk | Illinois |
| 12 | Ida H. Jones | 25 | Daughter | — | Illinois |
| 13 | Wilhelm Olson | 38 | Head | Steel Treating | Illinois |
| 14 | Agnes Olson | 37 | Wife | — | Illinois |
| 15 | John Olson | 6 | Son | — | Illinois |
| 16 | Emma Olson THIS PERSON | 71 | Head | — | Sweden |
| 17 | Elna M. Olson | 31 | Daughter | Clerical | Illinois |
| 18 | Louis O. Dankell | 69 | Head | Proprietor | Sweden |
| 19 | Nellie Dankell | 58 | Wife | — | Sweden |
| 20 | Bernice L. Dankell | 25 | Daughter | Elementary Teacher | Illinois |
| 21 | Herbert Johnson | 47 | Head | Upholsterer | Illinois |
| 22 | Bertha Johnson | 45 | Wife | — | Iowa |
| 23 | Shirley Johnson | 15 | Daughter | — | Illinois |
| 24 | Bert G. Oberg | 53 | Head | Furniture Carver | Illinois |
| 25 | Elizabeth Oberg | 47 | Wife | — | Sweden |
| 26 | Shirley Oberg | 9 | Daughter | — | Illinois |
| 27 | Gust J. Nelson | 53 | Head | Carpenter | Sweden |
| 28 | Hilma Nelson | 54 | Wife | — | Sweden |
| 29 | Herbert Nelson | 26 | Son | Machinist | Illinois |
| 30 | Floyd Nelson | 21 | Son | Shipping Clerk | Illinois |
| 31 | Helge Carlson | 54 | Head | Janitor | Sweden |
| 32 | Gerda S. Carlson | 49 | Wife | — | Sweden |
| 33 | Ruth E. Carlson | 20 | Daughter | Telephone Oper. | Illinois |
| 34 | Ralph A. Carlson | 12 | Son | — | Illinois |
| 35 | Beverly J. Carlson | 8 | Daughter | — | Illinois |
| 36 | Extra Lines (Misinformation) | None | — | — | — |
| 37 | Extra Lines Erased By Misinformation | None | — | — | — |
| 38 | Joseph J. Ford | 50 | Head | Hot Grinder | Illinois |
| 39 | Mary L. Ford | 53 | Wife | — | Illinois |
| 40 | Jack Ford | 27 | Son | Machine Operator | 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)