WJ
William Johns — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this William Johns across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Lewis & Mary — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Johns |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford Twp |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 1562 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm Hand |
| Township / Ward | Rockford Twp |
| Est. Birth Year | ~1900 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Edward Johns | Son | — | 9 | ~1931 |
| Margaret Johns | Spouse | — | 36 | ~1904 |
| William Johns | Head | — | 40 | ~1900 |
| Barbara Johns | Daughter | — | 14 | ~1926 |
Census Appearances
1920
Winnebago, Illinois
Son, age 18
Winnebago, Illinois · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johns |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Other, age 28
Winnebago, Illinois · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johns |
| Given Name | William L |
| Relationship to Head | R |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Canada |
| Occupation | Farm Help |
| Industry | Father's Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Head, age 40
Winnebago-County, Illinois · implied b. ~1900 — 4 household members
| Surname | Johns |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford Twp |
| 1935 Residence (County) | Winnebago |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 1562 |
| Highest Grade | No 8 |
| 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 William Johns across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Johns (~0.92 confidence) and mother Mary Johns (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Johns
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Johns
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Johns
Head · 1940 · age 40 · b. ~1900 · 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-t0627-00915-00344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Wahl | 19 | Son | Maid | Illinois |
| 42 | Helen Johnson | 15 | Maid | Maid | Oklahoma |
| 43 | George A. Sauber | 72 | Head | — | Wisconsin |
| 44 | Flora Sauber | 74 | Wife | — | Illinois |
| 45 | John B. Foster | 40 | Son-in-law | — | Illinois |
| 46 | Clinton L. Clemons | 44 | Head | Farm Hand | Illinois |
| 47 | Mabel Clemons | 46 | Wife | — | Illinois |
| 48 | Harriet Clemons | 18 | Daughter | — | Illinois |
| 49 | Warren Clemons | 15 | Son | — | Illinois |
| 50 | Thomas Clemons | 9 | Son | — | Illinois |
| 51 | Albert Tibbetts | 78 | Lodger | — | Massachusetts |
| 52 | Carl Glenny | 41 | Head | Farm Hand | Illinois |
| 53 | Margaret Glenny | 47 | Wife | — | Illinois |
| 54 | Catherine Glenny | 17 | Daughter | — | Illinois |
| 55 | William Glenny | 12 | Son | — | Illinois |
| 56 | Emma Sundt | 55 | Maid | Maid | Illinois |
| 57 | William Glenny | 79 | Head | — | Illinois |
| 58 | Lavena Glenny | 73 | Wife | — | Illinois |
| 59 | William Abbott | 50 | Son-in-law | Farm Hand | Illinois |
| 60 | Rowena Abbott | 49 | Daughter | — | Illinois |
| 61 | Fred Vehmeier | 51 | Head | Salesman | Illinois |
| 62 | Bess Vehmeier | 48 | Wife | — | Illinois |
| 63 | George Vehmeier | 24 | Son | Janitor | Illinois |
| 64 | Edward Maynard | 52 | Lodger | Operator | Kentucky |
| 65 | William Johns THIS PERSON | 40 | Head | Farm Hand | Illinois |
| 66 | Margaret Johns | 36 | Wife | — | Illinois |
| 67 | Barbara Johns | 14 | Daughter | — | Illinois |
| 68 | Edward Johns | 9 | Son | — | Illinois |
| 69 | Louis A. Johns | 69 | Head | Farmer | Illinois |
| 70 | Dora J. Johns | 67 | Wife | — | Canada English |
| 71 | Dorothy A. Johns | 43 | Daughter | Secretary | Illinois |
| 72 | William H. King | 69 | Head | Operator | New York |
| 73 | Esther King | 59 | Wife | — | Illinois |
| 74 | Kirk J. King | 34 | Son | Driver Salesman | Illinois |
| 75 | David J. King | 40 | Head | Driver Salesman | Illinois |
| 76 | Faith King | 37 | Wife | Nurse | Minnesota |
| 77 | Clary B. Satterlee | 67 | Lodger | — | New Jersey |
| 78 | Reuben Celander | 45 | Head | — | Illinois |
| 79 | Hanna Celander | 79 | Mother | — | Sweden |
| 80 | Alvin Johnson | 26 | Lodger | Farm Hand | Illinois |
Pedigree Summary
William
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)