EK
Ernest King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Ernest King across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Ilo & Sip — first a head (b.~1920), then head of a 3-person household.
Age 20
b. ~1920
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | King |
| Given Name | Ernest L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Laborer |
| Industry | N.Y.A. |
| Class of Worker | GW |
| Hours Worked | 56 |
| Income (1939) | 99 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1920 |
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 Ernest | Age | Birth yr |
|---|---|---|---|---|
| Ernest King | Head | — | 20 | ~1920 |
| Jerry King | Son | — | 1 | ~1939 |
| Lois King | Spouse | — | 18 | ~1922 |
Census Appearances
1920
Polk, Iowa
Son, age
Polk, Iowa · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Earnest L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 10
Polk, Iowa · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 20
Polk-County, Iowa · implied b. ~1920 — 3 household members
| Surname | King |
| Given Name | Ernest L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Laborer |
| Industry | N.Y.A. |
| Class of Worker | GW |
| Hours Worked | 56 |
| Income (1939) | 99 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Ernest King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ilo King (~0.92 confidence) and father Sip King (~0.92 confidence) and mother Rosa King (~0.92 confidence) and mother Roxana King (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ilo King
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Sip King
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Rosa King
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Roxana King
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ernest King
Head · 1940 · age 20 · b. ~1920 · Iowa
★ 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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01196-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ernest L. King THIS PERSON | 20 | Head | Laborer | Iowa |
| 42 | Lois H. King | 18 | Wife | New Worker | Iowa |
| 43 | Jerry R. King | 1 | Son | — | Iowa |
| 44 | William Booth | 55 | Head | Checker | Russia |
| 45 | Ethel Booth | 49 | Wife | — | Russia |
| 46 | Reva L. Booth | 19 | Daughter | — | Iowa |
| 47 | Joseph H. Booth | 17 | Son | — | Iowa |
| 48 | Marie Booth | 7 | Daughter | — | Iowa |
| 49 | Fred M. Munz | 54 | Head | Orderlyman | Illinois |
| 50 | Martha B. Munz | 48 | Wife | — | Kansas |
| 51 | Lauren D. Brown | 26 | Head | Laborer | Iowa |
| 52 | Bertha J. Brown | 21 | Wife | — | Iowa |
| 53 | Darlene J. Brown | 4 | Daughter | — | Iowa |
| 54 | Elizabeth Brown | 2 | Son | — | Iowa |
| 55 | Joe J. Patrick | 30 | Head | Salesman | Missouri |
| 56 | Cleora Patrick | 25 | Wife | Waitress | Iowa |
| 57 | Beverly J. Patrick | 2 | Daughter | — | Iowa |
| 58 | Shirley J. Patrick | 1 | Daughter | — | Iowa |
| 59 | Walter H. Fromme | 56 | Head | Oil Distributor | Iowa |
| 60 | Marie E. Fromme | 34 | Wife | — | Iowa |
| 61 | Dorothy M. Fromme | 19 | Daughter | Stenographer | Iowa |
| 62 | Robert B. Fromme | 15 | Son | — | Iowa |
| 63 | Ole C. Lillegaard | 48 | Head | Mechanic | Illinois |
| 64 | Phoebe O. Lillegaard | 43 | Wife | — | Iowa |
| 65 | Dorothy Lillegaard | 25 | Daughter | New Worker | Iowa |
| 66 | Dwight E. Lillegaard | 17 | Son | New Worker | Iowa |
| 67 | James F. Lillegaard | 14 | Son | — | Iowa |
| 68 | Noel M. Glenn | 39 | Head | Office Clerk | Iowa |
| 69 | Lillian L. Glenn | 17 | Daughter | Waitress | Iowa |
| 70 | Charles E. Wetters | 19 | Son-in-law | Spike Layer | Illinois |
| 71 | Lucille M. Wetters | 19 | Daughter | — | Iowa |
| 72 | Shirley M. Wetters | 1 | Granddaughter | — | Iowa |
| 73 | Richard Bogue | 70 | Head | Oa | Missouri |
| 74 | Effie Bogue | 56 | Wife | — | Tennessee |
| 75 | Laverne Fitzpatrick | 9 | Grandson | — | Iowa |
| 76 | Ivan D. Miller | 35 | Head | Mail Clerk | Kansas |
| 77 | Mabel L. Miller | 32 | Wife | — | Iowa |
| 78 | Lyle H. Miller | 12 | Son | — | Iowa |
| 79 | Lois L. Miller | 10 | Daughter | — | Iowa |
| 80 | Jane L. Miller | 9 | Daughter | — | Iowa |
Pedigree Summary
Ernest
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)