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 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & William — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Berwyn City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Recreation Leader |
| Industry | Public School WPA Recreation |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 794 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Recreation Leader |
| Township / Ward | Berwyn 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Clara King | Spouse | — | 32 | ~1908 |
| Marilyn King | Daughter | — | 9 | ~1931 |
| Shirley King | Daughter | — | 1 | ~1939 |
| Lorraine King | Daughter | — | 11 | ~1929 |
| Harold King | Head | — | 33 | ~1907 |
Census Appearances
1910
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1909 — 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 | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Electrician |
| Industry | Engineering |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 33
Cook-County, Illinois · implied b. ~1907 — 5 household members
| Surname | King |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Berwyn City |
| 1935 Residence (County) | Cook |
| Occupation | Recreation Leader |
| Industry | Public School WPA Recreation |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 794 |
| Highest Grade | No 6 |
| 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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John King (~0.92 confidence) and father William King (~0.92 confidence) and mother Elizabeth King (~0.92 confidence) and mother Josephine King (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John King
b. ~1890
Source father
● Household
· direct · ~0.92
Father
William King
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Elizabeth King
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Josephine King
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold King
Head · 1940 · age 33 · b. ~1907 · Illinois
★ You are viewing this record
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-t0627-00773-00178)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chester Fitzgerald | 55 | Head | Clerk, Hardware | Missouri |
| 42 | Edna Fitzgerald | 53 | Wife | — | Missouri |
| 43 | Joseph Pione | 58 | Head | Crossing Watchman | Italy |
| 44 | Mary Pione | 57 | Wife | — | Italy |
| 45 | Frank Pione | 34 | Son | Clerical | Illinois |
| 46 | Daniel Pione | 30 | Son | Meter Tester | Illinois |
| 47 | John Pione | 28 | Son | Refrigeration | Illinois |
| 48 | Paul Pione | 23 | Son | New Worker | Illinois |
| 49 | Vlasta Parina | 42 | Head | Seamstress | Illinois |
| 50 | Arthur S. Atkinson | 30 | Head | Telephone Installer | Illinois |
| 51 | Elizabeth Atkinson | 31 | Wife | Secretary | Illinois |
| 52 | Wilfred Andrew | 60 | Father-in-law | — | Canada English |
| 53 | Beatrice Andrew | 22 | Sister-in-law | Stenographer | Illinois |
| 54 | William H. Rudolphsen | 47 | Head | Route Foreman | Illinois |
| 55 | Sarah Rudolphsen | 47 | Wife | — | Russia |
| 56 | Charlotte Rudolphsen | 15 | Daughter | Secretary | Illinois |
| 57 | Donald Rudolphsen | 17 | Son | — | Illinois |
| 58 | Arthur Steel | 49 | Head | Master Mechanic | England |
| 59 | Florence Steel | 44 | Wife | — | Missouri |
| 60 | Dorothy Steel | 20 | Daughter | — | Missouri |
| 61 | Jean Steel | 18 | Daughter | — | Illinois |
| 62 | George Zeke | 49 | Head | — | Illinois |
| 63 | Frieda Zeke | 51 | Wife | Waitress | Illinois |
| 64 | William Butler | 36 | Head | Maintenance Man | Illinois |
| 65 | Genevieve Butler | 33 | Wife | — | Illinois |
| 66 | Jean Butler | 13 | Daughter | — | Illinois |
| 67 | Mary Butler | 72 | Mother | — | Illinois |
| 68 | Harold King THIS PERSON | 33 | Head | Recreation Leader | Illinois |
| 69 | Clara King | 32 | Wife | — | Illinois |
| 70 | Lorraine King | 11 | Daughter | — | Illinois |
| 71 | Marilyn King | 9 | Daughter | — | Illinois |
| 72 | Shirley King | 1 | Daughter | — | Illinois |
| 73 | Ella Sporleder | 50 | Head | — | Illinois |
| 74 | Melvin Sporleder | 21 | Son | Clerical Work Return Clerk | Illinois |
| 75 | Jack Percek | 26 | Head | Meter Tester | Kansas |
| 76 | Helen Percek | 24 | Wife | Beauty Operator | Illinois |
| 77 | Paul Liptak | 26 | Head | Stenographer | Illinois |
| 78 | Frances Liptak | 25 | Wife | Radio Assembler | Illinois |
| 79 | Walter Smock | 41 | Head | Auto Repairer | Illinois |
| 80 | Betty Smock | 36 | Wife | — | Scotland |
Pedigree Summary
Harold
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)