AJ
Alvin Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kendall-County, Illinois
Our Model Tree links this Alvin Johnson across the 1920, 1930 and 1940 US Censuses in Kendall-County, Illinois (XGBoost, ~Confirmed), with identified parents Igor & Tom — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kendall-County, Illinois |
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Big Grove Twp |
| 1935 Residence (County) | Kendall |
| Additional Details | |
| Occupation | Farm Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 90 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm Hand |
| Township / Ward | Big Grove Twp |
| 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 Alvin | Age | Birth yr |
|---|---|---|---|---|
| Tom Johnson | Head | — | 66 | ~1874 |
| Anita Johnson | Daughter | — | 14 | ~1926 |
| Alvin Johnson | Son | — | 28 | ~1912 |
| Kate Johnson | Spouse | — | 60 | ~1880 |
| Leona Johnson | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Kendall, Illinois
Son, age 8
Kendall, Illinois · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Kendall, Illinois
Son, age 18
Kendall, Illinois · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Kendall-County, Illinois
Son, age 28
Kendall-County, Illinois · implied b. ~1912 — 5 household members
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Big Grove Twp |
| 1935 Residence (County) | Kendall |
| Occupation | Farm Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 90 |
| Income (1939) | 0 |
| Highest Grade | Hs 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 Alvin Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Igor Johnson (~0.92 confidence) and father Tom Johnson (~0.92 confidence) and mother Kate Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Igor Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Tom Johnson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Kate Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alvin Johnson
Son · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Leona Johnson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anita Johnson
Sibling · 1940 · age 14
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 — Kendall-County, Illinois
Open full size
1940 US Federal Census — Kendall-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00825-00032)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Wait | 15 | Son | Farm Hand | Illinois |
| 42 | Michael Fijalk | 64 | Head | Farmer | Poland |
| 43 | Barbara Fijalk | 56 | Wife | — | Poland |
| 44 | Frank Fijalk | 39 | Son | Farm Hand | Minnesota |
| 45 | Stella Fijalk | 33 | Daughter | — | Illinois |
| 46 | Jennie Fijalk | 30 | Daughter | Housework | Illinois |
| 47 | Marion Fijalk | 27 | Son | — | Illinois |
| 48 | John Fijalk | 24 | Son | — | Illinois |
| 49 | Olga Fijalk | 22 | Daughter | — | Illinois |
| 50 | Arthur E. Hansen | 58 | Head | Farming | Illinois |
| 51 | Annie J. Hansen | 54 | Wife | — | Illinois |
| 52 | Randall Davick | 51 | Head | Farmer | Illinois |
| 53 | Julia Davick | 49 | Wife | — | Illinois |
| 54 | Maurice Davick | 20 | Son | — | Illinois |
| 55 | Muriel Davick | 18 | Daughter | Nurse Training | Illinois |
| 56 | Royce Davick | 11 | Son | — | Illinois |
| 57 | Randall Jr. Davick | 8 | Son | — | Illinois |
| 58 | Alfred Johnson | 18 | Hired man | Farm Hand | Illinois |
| 59 | A. L. Martner | 42 | Head | Farmer | Illinois |
| 60 | Edith Martner | 31 | Wife | — | Wisconsin |
| 61 | Larry Martner | 4 | Son | — | Illinois |
| 62 | Lora Martner | 4 | Daughter | — | Illinois |
| 63 | Tonia C. Larson | 58 | Head | Farmer | Illinois |
| 64 | Amelia Larson | 52 | Wife | — | Norway |
| 65 | Tom Johnson | 66 | Head | Farmer | Illinois |
| 66 | Kate Johnson | 60 | Wife | — | Illinois |
| 67 | Alvin Johnson THIS PERSON | 28 | Son | Farm Hand | Illinois |
| 68 | Leona Johnson | 25 | Daughter | Housework | Illinois |
| 69 | Anita Johnson | 14 | Daughter | — | Illinois |
| 70 | Verdell Williamson | 33 | Head | Farming | Illinois |
| 71 | Margaret Williamson | 30 | Wife | — | Illinois |
| 72 | Geraldine Williamson | 2 | Daughter | — | Illinois |
| 73 | Oscar Bromeland | 61 | Head | Farming | Norway |
| 74 | Ina Bromeland | 60 | Wife | — | Norway |
| 75 | Milton Bromeland | 33 | Head | Farming | Illinois |
| 76 | Russell Johnson | 32 | Head | Farming | Illinois |
| 77 | Charlotte Johnson | 29 | Wife | — | Illinois |
| 78 | Ronald Johnson | 9 | Son | — | Illinois |
| 79 | Gene Johnson | 7 | Son | — | Illinois |
| 80 | Jacqueline Johnson | 2 | Daughter | — | Illinois |
Related Census Records
Pedigree Summary
Alvin + 2 siblings
Gen 1 · 4 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)