HK
Harold King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Harold King across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | COOK |
| Additional Details | |
| Occupation | Waiter |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 980 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Waiter |
| Township / Ward | Chicago |
| Est. Birth Year | ~1915 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Esther King | Head | — | 49 | ~1891 |
| Harold King | Son | — | 25 | ~1915 |
| Adelie King | Daughter | — | 9 | ~1931 |
Census Appearances
1920
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 25
Cook-County, Illinois · implied b. ~1915 — 3 household members
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | COOK |
| Occupation | Waiter |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 980 |
| Highest Grade | H 4 |
| 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 Harold King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William King (~0.92 confidence) and father William King (~0.92 confidence) and mother Agnes King (~0.92 confidence) and mother Esther King (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William King
b. ~1893
Source father
● Household
· direct · ~0.92
Father
William King
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Agnes King
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Esther King
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold King
Son · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Adelie King
Sibling · 1940 · age 9
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
39 people indexed on this census page (nara:1940:m-t0627-01017-00197)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Hannon | 34 | Head | Special Investigator | Illinois |
| 42 | Nelia Hannon | 32 | Wife | Office Worker | Illinois |
| 43 | William Hannon | 4 | Son | — | Ohio |
| 44 | Beverly Hannon | 3 | Daughter | — | Ohio |
| 45 | Lillian C. Walsh | 37 | Head | Beauty Shop Operator | Wisconsin |
| 46 | Rudolph C. Adler | 54 | Head | Chiropractor | Germany |
| 47 | Etta Mae Adler | 53 | Wife | H | Indiana |
| 48 | Fred Coolahan | 52 | Head | Clerk | Canada |
| 49 | Florence Coolahan | 48 | Wife | H | Illinois |
| 50 | Meyer Litman | 31 | Head | Commercial Salesman | Illinois |
| 51 | Albert J. Vanderkove | 35 | Head | Janitor | Michigan |
| 52 | Gladys V. Vanderkove | 35 | Wife | H | Illinois |
| 53 | Malvina Vanderkove | 16 | Daughter | S | Illinois |
| 54 | Harold Johnson | 40 | Head | Lathe Hand | Sweden |
| 55 | Ruth Johnson | 30 | Wife | Cook | Sweden |
| 56 | Esther King | 49 | Head | H | Poland |
| 57 | Harold King THIS PERSON | 25 | Son | Waiter | Illinois |
| 58 | Adelie King | 9 | Daughter | — | Illinois |
| 59 | Abraham Blair | 81 | Head | — | Austria |
| 60 | Tessie Blair | 61 | Wife | — | Illinois |
| 61 | L. F. Hammond | 33 | Head | Artist | Illinois |
| 62 | Charles Glassman | 31 | Head | Artist Engraver | Illinois |
| 63 | Celia Glassman | 31 | Wife | H | Poland |
| 64 | Daniel J. Bogdan | 29 | Head | Auditor | Indiana |
| 65 | Barbara O. Bogdan | 23 | Wife | H | Indiana |
| 66 | Boyd R. Bogdan | 1 | Son | — | Illinois |
| 67 | Henning Rannstrom | 50 | Head | Bricklayer | Sweden |
| 68 | Adolph Zitter | 35 | Head | Salesman | New York |
| 69 | Henrietta T. Zitter | 21 | Wife | H | Michigan |
| 70 | Walter S. Newborne | 51 | Head | Salesman | Massachusetts |
| 71 | Betty Newborne | 31 | Wife | Artist | Pennsylvania |
| 72 | Robert L. Newborne | 5 | Son | — | Ohio |
| 73 | Harry W. Ford | 31 | Head | Chauffeur | Illinois |
| 74 | Margaret Ford | 32 | Wife | Clerk | Illinois |
| 75 | Harold Peterson | 41 | Head | Investigator | Illinois |
| 76 | Hazel Peterson | 42 | Wife | H | Illinois |
| 77 | William Willey | 22 | Son | Wrapper | Minnesota |
| 78 | Alfred Rundstrom | 40 | Head | Salesman | Sweden |
| 79 | Esther Rundstrom | 37 | Wife | Clerk | Illinois |
Pedigree Summary
Harold + 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)