RC
Robert Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this Robert Campbell across the 1920, 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed), with identified parents Anna & Walter — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Campbell |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Occupation | Dispatcher |
| Industry | Coal company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Dispatcher |
| Township / Ward | Waukegan City |
| Est. Birth Year | ~1913 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Campbell | Head | — | 27 | ~1913 |
| David Campbell | Son | — | 1 | ~1939 |
| Walter Campbell | Son | — | 3 | ~1937 |
| Iona Campbell | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Lake, Illinois
Son, age 6
Lake, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lake, Illinois
Son, age 17
Lake, Illinois · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Germany |
| Occupation | Sales Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Head, age 27
Lake-County, Illinois · implied b. ~1913 — 4 household members
| Surname | Campbell |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Occupation | Dispatcher |
| Industry | Coal company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 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 Robert Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Campbell (~0.92 confidence) and father Walter Campbell (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Campbell
b. ~1869
Source mother
● Household
· direct · ~0.92
Father
Walter Campbell
b. ~1870
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Campbell
Head · 1940 · age 27 · b. ~1913 · 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 — Lake-County, Illinois
Open full size
1940 US Federal Census — Lake-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00830-00598)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter J. Rossi | 25 | Head | Meter Reader | Illinois |
| 2 | Adeline Rossi | 23 | Wife | Metallurgical Inspector | Illinois |
| 3 | Robert W. Campbell THIS PERSON | 27 | Head | Dispatcher | Illinois |
| 4 | Iona M. Campbell | 25 | Wife | — | Illinois |
| 5 | Walter R. Campbell | 3 | Son | — | Illinois |
| 6 | David L. Campbell | 1 | Son | — | Illinois |
| 7 | Peter P. Bandis | 60 | Head | Tailor | Lithuania |
| 8 | Petronella Bandis | 56 | Wife | — | Lithuania |
| 9 | Antonella Bandis | 28 | Daughter | Telephone Operator | Illinois |
| 10 | John M. Kremitz | 33 | Son-in-law | Laborer | Illinois |
| 11 | Anna A. Kremitz | 30 | Daughter | — | Illinois |
| 12 | Barbara A. Kremitz | 2 | Daughter | — | Illinois |
| 13 | Joseph Matulenas | 28 | Head | Salesman | Illinois |
| 14 | Adela J. Matulenas | 26 | Wife | — | Wisconsin |
| 15 | Lois J. Matulenas | 1 | Daughter | — | Illinois |
| 16 | Tekla Matulenas | 67 | Mother | — | Lithuania |
| 17 | Anton Bucanis | 55 | Uncle | Grinder | Lithuania |
| 18 | George Stumbrias | 65 | Head | Chipper | Lithuania |
| 19 | Veronica Stumbrias | 60 | Wife | — | Lithuania |
| 20 | George Damijonaitis | 49 | Head | Laborer | Lithuania |
| 21 | Agnes Damijonaitis | 48 | Wife | — | Lithuania |
| 22 | Martha Damijonaitis | 19 | Daughter | Housework | Illinois |
| 23 | Albert Damijonaitis | 14 | Son | — | Illinois |
| 24 | Anton Vasaitis | 57 | Head | Wire Drawer | Yugoslavia |
| 25 | Pauline Vasaitis | 42 | Wife | — | Yugoslavia |
| 26 | Victor Vasaitis | 21 | Son | Shoe Worker | Illinois |
| 27 | Albert Vasaitis | 14 | Son | — | Illinois |
| 28 | William Palish | 14 | Step-son | — | Illinois |
| 29 | George Palish | 13 | Step-son | — | Illinois |
| 30 | Tillic Trachowiak | 58 | Head | — | Poland |
| 31 | Helen Trachowiak | 39 | Daughter | Stenographer | Poland |
| 32 | John J. Trachowiak | 34 | Son | Shipping Clerk | Illinois |
| 33 | Valeria Trachowiak | 25 | Daughter | Booker | Illinois |
| 34 | George Baircl | 30 | Head | Dry-Cleaner | Illinois |
| 35 | Mary Baircl | 30 | Wife | — | Illinois |
| 36 | Arlene J. Baircl | 5 | Daughter | — | Illinois |
| 37 | Mary Atasevicius | 44 | Head | — | Lithuania |
| 38 | Bernice Atasevicius | 20 | Daughter | Assembler | Illinois |
| 39 | Alphonse Atasevicius | 17 | Son | Surveyor | Illinois |
| 40 | Eleanor Atasevicius | 13 | Daughter | — | Illinois |
Related Census Records
Pedigree Summary
Robert
Gen 1 · 2 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)