RJ
Russell Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Russell Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Susan & Charles — first a son (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Son
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Russell |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Pattern Maker |
| Industry | Railway Car Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1700 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Pattern Maker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1903 |
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 Russell | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnson | Head | — | 77 | ~1863 |
| Russell Johnson | Other | — | 3 | ~1937 |
| Eleanor Johnson | Other | — | 28 | ~1912 |
| Russell Johnson | Son | — | 37 | ~1903 |
Census Appearances
1910
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Russell |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 16
Cook, Illinois · implied b. ~1904 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Russel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Helper |
| Industry | Car Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 26
Cook, Illinois · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Russell |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Pattern maker |
| Industry | Pullman Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 37
Cook-County, Illinois · implied b. ~1903 — 4 household members
| Surname | Johnson |
| Given Name | Russell |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Pattern Maker |
| Industry | Railway Car Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1700 |
| 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 Russell Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Susan Johnson (~0.84 confidence) and father Charles Johnson (~0.84 confidence) and father Louis Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence) and father Alfred Johnson (~0.92 confidence) and mother Louisa Johnson (~0.92 confidence). The pedigree spans 2 generations with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Mother
Susan Johnson
b. ~1852
Source mother>mother
● Household
· direct · ~0.84
Father
Charles Johnson
b. ~1855
Source mother>father
● Household
· direct · ~0.84
Father
Louis Johnson
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1863
Source mother
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1863
Source mother
● Household
· direct · ~0.92
Father
Alfred Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Louisa Johnson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Russell Johnson
Son · 1940 · age 37 · b. ~1903 · 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 — 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-t0627-00939-00772)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hattie Malmley|Maltby | 36 | Wife | — | Illinois |
| 42 | Marie Malmley|Maltby | 7 | Daughter | — | Illinois |
| 43 | Harry Lucas | 50 | Head | Laborer | Czechoslovakia |
| 44 | Elizabeth Lucas | 45 | Wife | Maid | New Jersey |
| 45 | Elizabeth Lucas | 21 | Daughter | — | Illinois |
| 46 | Harry Jr. Lucas | 20 | Son | — | Illinois |
| 47 | Ellsworth E. Mcneer | 54 | Head | Glass Polisher | Kentucky |
| 48 | Helen Mcneer | 46 | Wife | — | Illinois |
| 49 | Eve May Mcneer | 21 | Daughter | — | Kentucky |
| 50 | Louis Smith | 40 | Head | Laborer | Illinois |
| 51 | Anne Smith | 37 | Wife | — | New York |
| 52 | Jean Anne Smith | 10 | Daughter | — | Illinois |
| 53 | Betty Lou Smith | 6 | Daughter | — | Illinois |
| 54 | Theodore Stano | 35 | Head | Auto Mechanic | Illinois |
| 55 | Louise Stano | 33 | Wife | — | Illinois |
| 56 | Joan Stano | 8 | Daughter | — | Illinois |
| 57 | James Slavin | 38 | Head | Mail Handler | Illinois |
| 58 | Mabel Slavin | 35 | Wife | — | Illinois |
| 59 | Catherine Slavin | 16 | Daughter | — | Illinois |
| 60 | W. William Foutt | 63 | Head | — | Illinois |
| 61 | Ella Foutt | 55 | Wife | — | Illinois |
| 62 | Josephine Carlson | 80 | Head | — | Sweden |
| 63 | Emma Peterson | 84 | Sister | — | Sweden |
| 64 | Charles Carlson | 57 | Son | Paper Hanger | Sweden |
| 65 | Mary Johnson | 77 | Head | — | Sweden |
| 66 | Russell Johnson THIS PERSON | 37 | Son | Pattern Maker | Illinois |
| 67 | Eleanor Johnson | 28 | Daughter-in-law | — | Illinois |
| 68 | Russell Jr. Johnson | 3 | Grandson | — | Illinois |
| 69 | Extra Line | None | — | — | — |
| 70 | Henry Olsen | 41 | Head | Butcher | Illinois |
| 71 | Della Olsen | 41 | Wife | — | Illinois |
| 72 | Richard Olsen | 18 | Son | New Worker | Illinois |
| 73 | Charles Rooth | 40 | Head | Butcher | Illinois |
| 74 | Eleanor Rooth | 40 | Wife | — | Illinois |
| 75 | Earl Rooth | 18 | Son | — | Illinois |
| 76 | Charles Jr. Rooth | 16 | Son | — | Illinois |
| 77 | Hattie Raney | 81 | Head | — | Pennsylvania |
| 78 | Christina Lundberg | 73 | Head | — | Sweden |
| 79 | Nimrod Kuckelberg | 42 | Head | Assembler | Illinois |
| 80 | Emma Kuckelberg | 42 | Wife | — | Illinois |
Pedigree Summary
Russell
Gen 1 · 5 parents
~0.92
Gen 2 · 2 grandparents
~0.84
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)