HJ
Harriet Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Harriet Johnson across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Harriet |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harriet | Age | Birth yr |
|---|---|---|---|---|
| Lucy Johnson | Spouse | — | 52 | ~1888 |
| Albertha Dorsey | Daughter | — | 26 | ~1914 |
| Harold Johnson | Son | — | 17 | ~1923 |
| Roy Johnson | Son | — | 11 | ~1929 |
| Harriet Johnson | Daughter | — | 13 | ~1927 |
| Ernest Johnson | Head | — | 52 | ~1888 |
| John Dorsey | Other | — | 30 | ~1910 |
| Samuel Johnson | Son | — | 15 | ~1925 |
Census Appearances
1930
Cook, Illinois
Daughter, age 3
Cook, Illinois · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harriet |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Georgia |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 13
Cook-County, Illinois · implied b. ~1927 — 8 household members
| Surname | Johnson |
| Given Name | Harriet |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 7 |
| 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 Harriet Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harriet Johnson
Daughter · 1940 · age 13 · b. ~1927 · Illinois
★ You are viewing this record
Sibling
Roy Johnson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Johnson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Johnson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albertha Dorsey
Sibling · 1940 · age 26
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-t0627-01005-00515)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albertha Tyler | 28 | Head | — | Kansas |
| 2 | Ricardo Tyler | 3 | Son | — | Illinois |
| 3 | Luther Holt | 9 | Nephew | — | Illinois |
| 4 | Kellie Abernathy | 66 | Head | — | Mississippi |
| 5 | Cornelia Abernathy | 64 | Wife | — | Alabama |
| 6 | Pinkie Vaughn | 54 | Head | — | Tennessee |
| 7 | Etta M. Johnson | 30 | Daughter | — | Tennessee |
| 8 | Muriel Johnson | 14 | daughter | — | Illinois |
| 9 | Edward Jones | 47 | Head | Laborer | Alabama |
| 10 | Frances Jones | 25 | Wife | — | Georgia |
| 11 | Paul Hall | 36 | Lodger | Laborer | Mississippi |
| 12 | Octavia Copper | 57 | Head | — | Louisiana |
| 13 | Ruby Copper | 17 | Daughter | — | Louisiana |
| 14 | William Copper | 15 | Son | — | Louisiana |
| 15 | Helen Butler | 35 | Daughter | — | Louisiana |
| 16 | Thelma Butler | 16 | daughter | — | Louisiana |
| 17 | John Butler | 14 | son | — | Louisiana |
| 18 | Eugene Jr. Butler | 12 | son | — | Illinois |
| 19 | Clarence Butler | 10 | son | — | Illinois |
| 20 | Irene Butler | 8 | daughter | — | Illinois |
| 21 | Flora Anderson | 38 | Head | — | N. Carolina |
| 22 | William Jr. Anderson | 11 | Son | — | Illinois |
| 23 | Wiley Jackson | 26 | Son | Laborer | Iowa |
| 24 | James Jamieson | 28 | Lodger | Bus Boy | Louisiana |
| 25 | Martha Fordas | 26 | Lodger | — | Louisiana |
| 26 | Oscar Fordas | 8 | Lodger | — | Arkansas |
| 27 | Albert Fordas | 4 | Lodger | — | Arkansas |
| 28 | Ernest Johnson | 52 | Head | — | Alabama |
| 29 | Lucy Johnson | 52 | Wife | — | Georgia |
| 30 | Albertha Dorsey | 26 | Daughter | Servant | Alabama |
| 31 | Harold Johnson | 17 | son | — | Illinois |
| 32 | Samuel Johnson | 15 | son | — | Illinois |
| 33 | Harriet Johnson THIS PERSON | 13 | Daughter | — | Illinois |
| 34 | Roy Johnson | 11 | son | — | Illinois |
| 35 | John Dorsey | 30 | son-in-law | Car Washer | Mississippi |
| 36 | Daniel Mcdonald | 60 | Head | Laborer | Georgia |
| 37 | Ophelia Mcdonald | 43 | Wife | — | Georgia |
| 38 | Albert Mcdonald | 21 | son | Laborer | Georgia |
| 39 | Louisa Wicker | 33 | sister-in-law | — | Georgia |
| 40 | Joseph Seymour | 53 | Head | Photographer | Louisiana |
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)