EJ
Earl Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Earl Jackson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents George & John — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Jackson |
| Given Name | Earl A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Accountant |
| Industry | Wholesale Manufacturing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Accountant |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Olga Jackson | Spouse | — | 54 | ~1886 |
| Earl Jackson | Son | — | 27 | ~1913 |
| John Jackson | Head | — | 59 | ~1881 |
| Norman Jackson | Son | — | 21 | ~1919 |
Census Appearances
1920
Cook, Illinois
Son, age 6
Cook, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Indiana |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 16
Cook, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 27
Cook-County, Illinois · implied b. ~1913 — 4 household members
| Surname | Jackson |
| Given Name | Earl A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Accountant |
| Industry | Wholesale Manufacturing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Earl Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Jackson (~0.92 confidence) and father John Jackson (~0.92 confidence) and mother Elsa Jackson (~0.92 confidence) and mother Olga Jackson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Jackson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
John Jackson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Elsa Jackson
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Olga Jackson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Jackson
Son · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
Norman Jackson
Sibling · 1940 · age 21
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-t0627-00999-00658)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mulkerrins Marvin Olsen | 30 | Son | Inspector | Illinois |
| 42 | Arnold Griehel|Griebel | 44 | Head | Engraver | Germany |
| 43 | Lydia L. Griehel|Griebel | 48 | Wife | — | Germany |
| 44 | Gunther P. Griehel|Griebel | 19 | Son | — | Germany |
| 45 | Emely K. Brabec | 51 | Head | Seamstress | Illinois |
| 46 | Mildred C. Brabec | 30 | Daughter | — | Illinois |
| 47 | Charles J. Brabec | 28 | Son | Shipping Clerk | Illinois |
| 48 | Rudolph J. Brabec | 21 | Son | Farm Boy | Illinois |
| 49 | Irene L. Brabec | 18 | Daughter | — | Illinois |
| 50 | Joseph J. Brabec | 15 | Son | — | Illinois |
| 51 | Anton G. Brabec | 11 | Son | — | Illinois |
| 52 | James S. Brabec | 9 | Son | — | Illinois |
| 53 | Anton Sr. Liska | 69 | Head | — | Czechoslovakia |
| 54 | Josephine Liska | 56 | Wife | — | Illinois |
| 55 | Arthur Kehnert | 40 | Head | Dental Mechanic | Illinois |
| 56 | Evelyn E. Kehnert | 35 | Wife | — | Illinois |
| 57 | Arthur Jr. Kehnert | 10 | Son | — | Illinois |
| 58 | John L. Jackson | 59 | Head | Butcher | Minnesota |
| 59 | Olga E. Jackson | 54 | Wife | — | Indiana |
| 60 | Earl A. Jackson THIS PERSON | 27 | Son | Accountant | Illinois |
| 61 | Norman L. Jackson | 21 | Son | Office Clerk | Illinois |
| 62 | Herman Keune | 49 | Head | Stationary Engineer | Illinois |
| 63 | Pearl Keune | 44 | Wife | — | Illinois |
| 64 | Leanore A. Keune | 21 | Daughter | Office Clerk | Illinois |
| 65 | Stefan Socovsky | 76 | Head | — | Czechoslovakia |
| 66 | Francis Socovsky | 68 | Wife | — | Czechoslovakia |
| 67 | Mary Socovsky | 39 | Daughter | Office Clerk | Illinois |
| 68 | Anna F. Simo | 36 | Daughter | Clerical Work | Illinois |
| 69 | Walter J. Simo | 12 | Grandson | — | Illinois |
| 70 | Andrew Chilla | 48 | Head | Button Maker | Czechoslovakia |
| 71 | Bessie Chilla | 44 | Wife | — | Illinois |
| 72 | Robert A. Chilla | 11 | Son | — | Illinois |
| 73 | Emil P. Sumka | 25 | Boarder | Gear Cutter | Illinois |
| 74 | Emily F. Sumka | 24 | Daughter | Typist | Illinois |
| 75 | Mary H. Alke | 61 | Head | — | Bohemia |
| 76 | Lillian Alke | 18 | Daughter | Stenographer | Illinois |
| 77 | Allan J. Nicholson | 40 | Head | Repairman | Illinois |
| 78 | Anne G. Nicholson | 33 | Wife | — | Illinois |
| 79 | Beverly J. Nicholson | 8 | Daughter | — | Illinois |
| 80 | Gustav C. Loescher | 55 | Head | Shipping Clerk | Illinois |
Pedigree Summary
Earl + 1 sibling
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)