EA
Ellen Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ellen Anderson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Blenda & Olaf — first a daughter (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Anderson |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laboratory |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 840 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laboratory |
| Township / Ward | Chicago |
| Est. Birth Year | ~1920 |
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 Ellen | Age | Birth yr |
|---|---|---|---|---|
| Shirley Anderson | Daughter | — | 14 | ~1926 |
| Marilyn Anderson | Daughter | — | 10 | ~1930 |
| Ellen Anderson | Daughter | — | 20 | ~1920 |
| Andrew Anderson | Head | — | 52 | ~1888 |
| Roger Anderson | Son | — | 7 | ~1933 |
| Anna Anderson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1919 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 20
Cook-County, Illinois · implied b. ~1920 — 6 household members
| Surname | Anderson |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laboratory |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 840 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| 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 Ellen Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Blenda Jacobsen (~0.92 confidence) and father Olaf Jacobsen (~0.92 confidence) and father Andrew Anderson (~0.92 confidence) and mother Anna Anderson (~0.92 confidence) and father Lawrence Anderson (~0.92 confidence) and mother Anna Anderson (~0.92 confidence) and mother Anna Anderson (~0.92 confidence) and mother Rose Schuler (~0.92 confidence). The pedigree spans 1 generation with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Blenda Jacobsen
b. ~1872
Source mother
● Household
· direct · ~0.92
Father
Olaf Jacobsen
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Andrew Anderson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Anna Anderson
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Lawrence Anderson
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Anna Anderson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Anna Anderson
b. ~1900
Source mother
● Household
· direct · ~0.92
Mother
Rose Schuler
b. ~1904
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ellen Anderson
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Shirley Anderson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Anderson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Anderson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-01014-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Franke Franke | 10 | Daughter | — | Illinois |
| 42 | Gudrun Franke | 3 | Daughter | — | Illinois |
| 43 | Harry Morris | 49 | Head | Noorman | Texas |
| 44 | Eleanor Morris | 36 | Wife | Saleswoman | England |
| 45 | Ruth Morris | 16 | Daughter | — | Illinois |
| 46 | Paul Morris | 14 | Son | — | Illinois |
| 47 | James Morris | 10 | Son | — | Illinois |
| 48 | David Morris | 8 | Son | — | Illinois |
| 49 | Martha Morris | 4 | Daughter | — | Illinois |
| 50 | Carl Weye | 74 | Father-in-law | — | Germany |
| 51 | Susan Weye | 75 | Mother-in-law | — | England |
| 52 | Carl Pederson | 50 | Head | Truck Driver | Illinois |
| 53 | Minnie Pederson | 45 | Wife | Evangelist | Indiana |
| 54 | Juanita Pederson | 16 | Daughter | — | Indiana |
| 55 | Leora Mccarthy | 57 | Head | Teacher | Illinois |
| 56 | Emma Guttasson | 53 | Maid | Maid | Sweden |
| 57 | Kyle Gunderson | 25 | Head | Dental Technician | Minnesota |
| 58 | Lorraine Gunderson | 21 | Wife | — | Minnesota |
| 59 | Janis Gunderson | 1 | Daughter | — | Illinois |
| 60 | Ahmed R. Ibrahim | 42 | Lodger | Chauffeur | Turkey |
| 61 | Andrew Anderson | 52 | Head | Carpenter | Sweden |
| 62 | Anna Anderson | 48 | Wife | — | Iowa |
| 63 | Ellen Anderson THIS PERSON | 20 | Daughter | Laboratory | Illinois |
| 64 | Shirley Anderson | 14 | Daughter | — | Illinois |
| 65 | Marilyn Anderson | 10 | Daughter | — | Illinois |
| 66 | Roger Anderson | 7 | Son | — | Illinois |
| 67 | Emily Gierman | 55 | Head | Seamstress | Austria |
| 68 | Felix Gierman | 66 | Brother | — | Germany |
| 69 | Bernard Krucek | 38 | Lodger | Shipping Clerk | Illinois |
| 70 | Karl Rohn | 50 | Lodger | Clerk | Germany |
| 71 | Frank Ronca | 28 | Lodger | Waiter | Illinois |
| 72 | Marie Swanson | 62 | Head | Laundress | Sweden |
| 73 | Rose Swanson | 36 | Daughter | Laundress | New York |
| 74 | Andrew Engstrom | 69 | Lodger | Night Watchman | Sweden |
| 75 | Arthur Ziegler | 45 | Head | Writer | Ohio |
| 76 | Mabel Ziegler | 43 | Wife | — | Ohio |
| 77 | Tom Nadjer | 46 | Head | Chef | Greece |
| 78 | Marie Nadjer | 42 | Wife | — | Illinois |
| 79 | George Nadjer | 18 | Son | New Worker | Illinois |
| 80 | Eva M. Colermont | 52 | Head | Trained Nurse | Illinois |
Pedigree Summary
Ellen + 3 siblings
Gen 1 · 8 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)