JN
John Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Hefey & Davey — first a son (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Son
Born: Mississippi
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Separated |
| Birthplace | Mississippi |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Operator |
| Industry | Stock Yards |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 356 |
| Highest Grade | No 4-2 |
| 1935 Residence | Same Place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Operator |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1913 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Marian Stevenson | Daughter | — | 10 | ~1930 |
| Davey Nelson | Head | — | 44 | ~1896 |
| John Nelson | Son | — | 27 | ~1913 |
Census Appearances
1920
Cook, Illinois
Son, age 7
Cook, Illinois · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
Cook, Illinois
Son, age 17
Cook, Illinois · implied b. ~1913 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Cook-County, Illinois
Son, age 27
Cook-County, Illinois · implied b. ~1913 — 3 household members
| Surname | Nelson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Separated |
| Birthplace | Mississippi |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Operator |
| Industry | Stock Yards |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 356 |
| Highest Grade | No 4-2 |
| 1935 Residence | Same Place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 John Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hefey Nelson (~0.92 confidence) and father Davey Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hefey Nelson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Davey Nelson
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Nelson
Son · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
Marian Stevenson
Sibling · 1940 · age 10
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 — 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-t0627-00925-00523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julius Robinson | 31 | Head | Molder | Georgia |
| 2 | Davie Robinson | 22 | Wife | — | Illinois |
| 3 | John Price | 39 | Head | Hiker | Arkansas |
| 4 | Lillie Price | 39 | Wife | — | Arkansas |
| 5 | Charles Byrd | 33 | Head | Chipper | Mississippi |
| 6 | Willa Byrd | 26 | Wife | — | Alabama |
| 7 | George Phinery | 40 | Head | Meat Curer | Georgia |
| 8 | Lillie Mae Knight | 31 | Partner | Maid | Tennessee |
| 9 | Davey Nelson | 44 | Head | — | Mississippi |
| 10 | John Nelson THIS PERSON | 27 | Son | Operator | Mississippi |
| 11 | Marian Stevenson | 10 | Daughter | — | Illinois |
| 12 | Dorothy Graham | 29 | Head | — | Georgia |
| 13 | Henry Graham | 12 | Son | — | Georgia |
| 14 | Leola Allen | 44 | Head | Seamstress | Louisiana |
| 15 | Nelson Allen | 19 | Son | New Worker | Illinois |
| 16 | James Edward | 48 | Head | Laborer | Louisiana |
| 17 | William Jones | 49 | Head | Bailer | Mississippi |
| 18 | E. B. Evans | 48 | Lodger | Bailer | Mississippi |
| 19 | Willie Bell | 35 | Lodger | Cook | Mississippi |
| 20 | Lula Herdmon | 52 | Head | — | Mississippi |
| 21 | Anna Conway | 62 | Head | — | Mississippi |
| 22 | Elizabeth Hemphill | 64 | Head | — | Mississippi |
| 23 | James Scherrer | 46 | Head | Waitress | Tennessee |
| 24 | Edward Scherrer | 10 | Son | — | Tennessee |
| 25 | Juanita Smith | 26 | Head | — | Alabama |
| 26 | Gwendolyn Burdette | 6 | Daughter | — | Illinois |
| 27 | Charlie Hawkins | 38 | Head | Laborer | Texas |
| 28 | Octavia Hawkins | 31 | Wife | — | Tennessee |
| 29 | Herman Hawkins | 11 | Son | — | Illinois |
| 30 | Sylvester Hawkins | 10 | Son | — | Illinois |
| 31 | Cortez Hawkins | 7 | Son | — | Illinois |
| 32 | Phyllis Hawkins | 6 | Daughter | — | Illinois |
| 33 | Alfred Hawkins | 1 | Son | — | Illinois |
| 34 | Leroy Glasper | 36 | Head | Killer | Mississippi |
| 35 | Adell Glasper | 28 | Wife | — | Arkansas |
| 36 | Pearl Hampton | 29 | Head | Maid | Missouri |
| 37 | Henry Hampton | 16 | Son | — | Missouri |
| 38 | Alice Johnson | 51 | Head | — | Arkansas |
| 39 | Horace Churchill | 72 | Head | — | Kentucky |
| 40 | Nettie Churchill | 55 | Wife | — | Arkansas |
Pedigree Summary
John + 1 sibling
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)