CJ
Cecil Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Cecil Johnson across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed), with identified parents Nels & Nels — first a son (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Johnson |
| Given Name | Cecil |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Moline City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Occupation | Butcher |
| Industry | Retail Trade |
| Class of Worker | PW |
| Hours Worked | 7 |
| Income (1939) | 652 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Butcher |
| Township / Ward | Moline City |
| Est. Birth Year | ~1907 |
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 Cecil | Age | Birth yr |
|---|---|---|---|---|
| Frances Johnson | Daughter | — | 35 | ~1905 |
| Nels Johnson | Head | — | 69 | ~1871 |
| Cecil Johnson | Son | — | 33 | ~1907 |
| Cecilia Johnson | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Rock Island, …
Son, age 13
Rock Island, Illinois · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Cecil |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 23
Rock Island, Illinois · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Cecil |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | England |
| Occupation | Laborer |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Son, age 33
Rock-Island-County, Illinois · implied b. ~1907 — 4 household members
| Surname | Johnson |
| Given Name | Cecil |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Moline City |
| 1935 Residence (County) | Rock Island |
| Occupation | Butcher |
| Industry | Retail Trade |
| Class of Worker | PW |
| Hours Worked | 7 |
| Income (1939) | 652 |
| Highest Grade | Hs 2 |
| 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 Cecil Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nels Johnson (~0.92 confidence) and father Nels Johnson (~0.92 confidence) and father Nels Johnson (~0.92 confidence) and mother Cecilia Johnson (~0.92 confidence) and mother Celia Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nels Johnson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Nels Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Nels Johnson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Cecilia Johnson
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Celia Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Cecil Johnson
Son · 1940 · age 33 · b. ~1907 · Illinois
★ You are viewing this record
Sibling
Frances Johnson
Sibling · 1940 · age 35
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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00875-00611)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nels O Johnson | 69 | Head | Carpenter | Sweden |
| 42 | Cecilia Johnson | 64 | Wife | — | England |
| 43 | Frances Johnson | 35 | Daughter | Grade School Teacher | Illinois |
| 44 | Cecil Johnson THIS PERSON | 33 | Son | Butcher | Illinois |
| 45 | Clifford Johnson | 31 | Head | Manager | Illinois |
| 46 | Evelyn Johnson | 30 | Wife | — | Illinois |
| 47 | Darrell Johnson | 7 | Son | — | Illinois |
| 48 | Christine Ern | 74 | Head | — | Sweden |
| 49 | Harold R Ern | 38 | Son | Press Operator | Illinois |
| 50 | Emil R Ern | 36 | Son | Machinist | Illinois |
| 51 | Julius T Root | 58 | Head | Mill-Wright | Illinois |
| 52 | Daisy May Root | 52 | Wife | — | Iowa |
| 53 | Raymond J Root | 11 | Son | — | Illinois |
| 54 | George Root | 24 | Head | Pattern Maker | Illinois |
| 55 | Lucille Root | 22 | Wife | Stenographer | Ohio |
| 56 | Irene Christison | 52 | Head | — | Illinois |
| 57 | Harvey Robbin | 30 | Head | Design Engineer | Minnesota |
| 58 | Louise Robbin | 27 | Wife | — | Minnesota |
| 59 | Thomas O'Rourke | 63 | Head | Tool Maker | Ohio |
| 60 | Carrie O'Rourke | 59 | Wife | — | Missouri |
| 61 | Dortha Friesner | 29 | Roomer | Home Economics Teacher | Iowa |
| 62 | Frank Knowles | 53 | Head | Shipping Clerk | Illinois |
| 63 | Permilla Knowles | 79 | Mother | — | Illinois |
| 64 | Amanda Sheehan | 74 | Housekeeper | Housekeeper | Illinois |
| 65 | Clarence Nordell | 54 | Head | Osteopath | Iowa |
| 66 | Viviane Nordell | 46 | Wife | — | Iowa |
| 67 | Warren A Nordell | 22 | Son | — | Iowa |
| 68 | Mary Lou Nordell | 20 | Daughter | — | Iowa |
| 69 | Ella M Brutus | 70 | Mother in law | — | Sweden |
| 70 | Agnes Johnson | 65 | Sister in law | Receptionist | Sweden |
| 71 | Otto C Wahlstrom | 48 | Head | Machine Operator | Illinois |
| 72 | Agnes E Wahlstrom | 46 | Wife | — | Illinois |
| 73 | Dale S Wahlstrom | 20 | Son | — | Illinois |
| 74 | John Jacobs | 33 | Head | Proprietor | Illinois |
| 75 | Mabel Jacobs | 37 | Wife | Manager | Illinois |
| 76 | Elizabeth Jacobs | 10 | Daughter | — | Illinois |
| 77 | Olof Shoppstedt | 60 | Head | Foreman | Sweden |
| 78 | Emelie Shoppstedt | 58 | Wife | — | Sweden |
| 79 | Harry E Ekstam | 44 | Head | Proprietor | Illinois |
| 80 | Ruth H Ekstam | 41 | Wife | — | Illinois |
Related Census Records
Pedigree Summary
Cecil + 1 sibling
Gen 1 · 5 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)