RJ
Richard Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mclean-County, Illinois
Our Model Tree links this Richard Johnson across the 1920, 1930 and 1940 US Censuses in Mclean-County, Illinois (XGBoost, ~Confirmed), with identified parents Daniel & Daniel — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mclean-County, Illinois |
| Surname | Johnson |
| Given Name | Richard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Normal |
| 1935 Residence (County) | McLean |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Mechanic |
| Township / Ward | Normal |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Patricia Johnson | Daughter | — | 7 | ~1933 |
| Richard Johnson | Head | — | 30 | ~1910 |
| Gertrude Johnson | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Mclean, Illinois
Son, age 10
Mclean, Illinois · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Mclean, Illinois
Son, age 20
Mclean, Illinois · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Mclean-County, Illinois
Head, age 30
Mclean-County, Illinois · implied b. ~1910 — 3 household members
| Surname | Johnson |
| Given Name | Richard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Normal |
| 1935 Residence (County) | McLean |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Richard Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Daniel Johnson (~0.92 confidence) and father Daniel Johnson (~0.92 confidence) and mother Alice Johnson (~0.92 confidence) and mother Alice Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Johnson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Daniel Johnson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Alice Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Alice Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Johnson
Head · 1940 · age 30 · b. ~1910 · 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 — Mclean-County, Illinois
Open full size
1940 US Federal Census — Mclean-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00842-00655)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Coydal | 2 | Head | — | Illinois |
| 2 | Dennis Day | 44 | Head | Carpenter | Kentucky |
| 3 | Maggie Day | 41 | Wife | Bakery Hostess | Illinois |
| 4 | R. Lewis Meyers | 31 | Head | Linotype Operator | Illinois |
| 5 | Marjorie Meyers | 31 | Wife | Housewife | Illinois |
| 6 | Anne Meyers | 2 | Daughter | — | Illinois |
| 7 | Roy H. Dodge | 52 | Head | Sheet Metal Worker | Illinois |
| 8 | Verna Dodge | 52 | Wife | Housewife | Illinois |
| 9 | Wilbur Dodge | 20 | Son | — | Illinois |
| 10 | Henry F. Payne | 69 | Head | Real Estate & Ins. | Illinois |
| 11 | Jewelle Payne | 50 | Wife | Housewife | Mississippi |
| 12 | Mary Frances Payne | 20 | Daughter | Student | Mississippi |
| 13 | Madison Burdette | 9 | Roomer | — | Illinois |
| 14 | Evelyn Barnhill | 7 | Roomer | — | Illinois |
| 15 | Edgar Barnhill | 6 | Roomer | — | Illinois |
| 16 | Henry Poppen | 34 | Head | Math Instructor | Kansas |
| 17 | Lily Poppen | 30 | Wife | Housewife | Kansas |
| 18 | Cynthia Poppen | 2 | Daughter | — | Illinois |
| 19 | Jacob N. Bangham | 78 | Head | Retired Farmer | Illinois |
| 20 | Lydia Bangham | 69 | Wife | Housewife | Illinois |
| 21 | Richard Johnson THIS PERSON | 30 | Head | Mechanic | South Dakota |
| 22 | Gertrude Johnson | 26 | Wife | Housewife | Kentucky |
| 23 | Patricia Ann Johnson | 7 | Daughter | — | Illinois |
| 24 | Lulu Terwilliger | 66 | Head | — | Illinois |
| 25 | Grace Terwilliger | 24 | Daughter | — | Illinois |
| 26 | — | None | — | — | — |
| 27 | Herbert H. Lemme | 49 | Head | Shoe Repairer | Illinois |
| 28 | Beudella Lemme | 39 | Wife | Clerk | Illinois |
| 29 | Harry B. Metcalf | 48 | Head | Garage Owner | Illinois |
| 30 | Myrtle Metcalf | 49 | Wife | Housewife | Illinois |
| 31 | Richard Metcalf | 14 | Son | Student | Illinois |
| 32 | Aura S. King | 34 | Head | Grocer | Illinois |
| 33 | Dorothy King | 31 | Wife | Asst. & Sec. | Illinois |
| 34 | Bertha Michael | 53 | Head | Cook | Illinois |
| 35 | Fern Roseman | 32 | Daughter | Cashier | Illinois |
| 36 | George H. Michael | 19 | Son | Student | Illinois |
| 37 | Paul Raymond Michael | 15 | Son | — | Illinois |
| 38 | — | None | — | — | — |
| 39 | Charles Dennis | 40 | Head | Trucker | Illinois |
| 40 | Callie Dennis | 43 | Wife | Housewife | Illinois |
Pedigree Summary
Richard
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)