WC
William Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Leavenworth-County, Kansas
Our Model Tree links this William Campbell across the 1920, 1930 and 1940 US Censuses in Leavenworth-County, Kansas (XGBoost, ~Confirmed), with identified parents William & William — first a head (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Leavenworth-County, Kansas |
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Leavenworth City |
| 1935 Residence (County) | Leavenworth |
| Additional Details | |
| Occupation | Salesman |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 2400 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Salesman |
| Township / Ward | Leavenworth City |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Campbell | Head | — | 28 | ~1912 |
| Edward Campbell | Son | — | 1 | ~1939 |
| Timothy Campbell | Son | — | ~1940 | |
| William Campbell | Son | — | 3 | ~1937 |
| Betty Campbell | Spouse | — | 23 | ~1917 |
Census Appearances
1920
Leavenworth, Kansas
Son, age 8
Leavenworth, Kansas · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Leavenworth, Kansas
Son, age 18
Leavenworth, Kansas · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Leavenworth-County, Kansas
Head, age 28
Leavenworth-County, Kansas · implied b. ~1912 — 5 household members
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Leavenworth City |
| 1935 Residence (County) | Leavenworth |
| Occupation | Salesman |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 2400 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 William Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Campbell (~0.92 confidence) and father William Campbell (~0.92 confidence) and mother Mary Campbell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Campbell
b. ~1882
Source father
● Household
· direct · ~0.92
Father
William Campbell
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Campbell
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Campbell
Head · 1940 · age 28 · b. ~1912 · Kansas
★ 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 — Leavenworth-County, Kansas
Open full size
1940 US Federal Census — Leavenworth-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01240-00937)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lee Marks | 43 | Head | Carpenter | Kansas |
| 42 | Ruth Marks | 41 | Wife | — | Kansas |
| 43 | Norman Noland | 24 | Son | Truck Driver | Missouri |
| 44 | Patsy Marks | 16 | Daughter | — | Kansas |
| 45 | Donald Marks | 15 | Son | — | Kansas |
| 46 | Barbara Marks | 13 | Daughter | — | Kansas |
| 47 | Carrie Tenayson | 61 | Mother-in-law | — | Kansas |
| 48 | Peter Schlonga | 49 | Head | Laborer | Kansas |
| 49 | Josephine Schlonga | 42 | Wife | — | Kansas |
| 50 | Peter Jr. Schlonga | 17 | Son | — | Kansas |
| 51 | Margaret Schlonga | 15 | Daughter | — | Kansas |
| 52 | Joseph Schlonga | 12 | Son | — | Kansas |
| 53 | Anna Schlonga | 10 | Daughter | — | Kansas |
| 54 | Robert Schlonga | 7 | Son | — | Kansas |
| 55 | John Williams | 68 | Head | Laborer | Kansas |
| 56 | Alice Williams | 65 | Wife | — | Kansas |
| 57 | Bertha Graham | 48 | Head | Owner Laundry | Georgia |
| 58 | Mattie Graham | 40 | Wife | Owner Laundry | Alabama |
| 59 | Mamie Graham | 1 | Daughter | — | Kansas |
| 60 | Clyde Johnson | 30 | Head | Teacher | Missouri |
| 61 | Birdine Johnson | 28 | Wife | — | South Dakota |
| 62 | Marliee Johnson | 4 | Daughter | — | Missouri |
| 63 | Betty A. Johnson | 1 | Daughter | — | Kansas |
| 64 | Molly Behrle | 47 | Head | — | Kansas |
| 65 | Vera Jones | 39 | Head | Finisher | Kansas |
| 66 | Kenneth Jones | 14 | Son | — | Kansas |
| 67 | Irmagean Jones | 12 | Daughter | — | Kansas |
| 68 | Lawrance Jones | 7 | Son | — | Kansas |
| 69 | George Moore | 46 | Head | Owner | Missouri |
| 70 | Celia Moore | 48 | Wife | — | Kansas |
| 71 | Chester Moore | 16 | Son | Mechanic | Missouri |
| 72 | Jack Moore | 9 | Son | — | Kansas |
| 73 | Jean Moore | 6 | Daughter | — | Kansas |
| 74 | William Campbell THIS PERSON | 28 | Head | Salesman | Kansas |
| 75 | Betty Campbell | 23 | Wife | — | Kansas |
| 76 | William D Campbell | 3 | Son | — | Kansas |
| 77 | Edward Campbell | 1 | Son | — | Kansas |
| 78 | Timothy Campbell | 0 | Son | — | Kansas |
| 79 | William B Reilly | 66 | Head | Manager Clerk | Kansas |
| 80 | Elizabeth Reilly | 64 | Wife | — | Germany |
Related Census Records
Pedigree Summary
William
Gen 1 · 3 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)