WM
William Mckinney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this William Mckinney across the 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | McKinney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Occupation | Porter |
| Industry | Pool Hall |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 750 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Porter |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1922 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Drucilla Mckinney | Daughter | — | 20 | ~1920 |
| Cecil Eldridge | Head | — | 43 | ~1897 |
| William Mckinney | Son | — | 18 | ~1922 |
| Mary Mckinney | Daughter | — | 16 | ~1924 |
| Charlotte Eldridge | Daughter | — | 8 | ~1932 |
| Doris Eldridge | Daughter | — | 6 | ~1934 |
| Eleanor Mckinney | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Wapello, Iowa
Son, age 8
Wapello, Iowa · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKinney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | Nev |
| Father's Birthplace | United States |
| Mother's Birthplace | Missouri |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Son, age 18
Wapello-County, Iowa · implied b. ~1922 — 7 household members
| Surname | McKinney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Occupation | Porter |
| Industry | Pool Hall |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 750 |
| Highest Grade | Hs 2 |
| 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 William Mckinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mckinney
Son · 1940 · age 18 · b. ~1922 · Iowa
★ You are viewing this record
Sibling
Mary Mckinney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Eldridge
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Mckinney
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Eldridge
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Drucilla Mckinney
Sibling · 1940 · age 20
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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01209-00427)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | Charles Nevins | 34 | Head | Laborer | Missouri |
| 43 | Ruth Nevins | 29 | Wife | — | Iowa |
| 44 | Jonlyn Nevins | 8 | Daughter | — | Iowa |
| 45 | Nancy Nevins | 3 | Daughter | — | Iowa |
| 46 | Dixie Nevins | 1 | Daughter | — | Iowa |
| 47 | Donnel Nevins | 0 | Daughter | — | Iowa |
| 48 | Janice Horton | 61 | Mother-in-law | — | Iowa |
| 49 | Roy Lathrop | 36 | Head | Elevator Operator | Iowa |
| 50 | Nancy Lathrop | 33 | Wife | — | Iowa |
| 51 | Marion Lathrop | 14 | Son | — | Iowa |
| 52 | Roy G. Lathrop | 11 | Son | — | Iowa |
| 53 | James Lathrop | 8 | Son | — | Iowa |
| 54 | Betty Lathrop | 6 | Daughter | — | Iowa |
| 55 | Dorothy Lathrop | 4 | Daughter | — | Iowa |
| 56 | Marjorie Mckinney | 16 | Daughter | — | Iowa |
| 57 | Cecil Eldridge | 43 | Head | — | Missouri |
| 58 | Charlotte Eldridge | 8 | Daughter | — | Iowa |
| 59 | Doris Jean Eldridge | 6 | Daughter | — | Iowa |
| 60 | Eleanor Mckinney | 22 | Daughter | — | Iowa |
| 61 | Drucilla Mckinney | 20 | Daughter | Housekeeper | Iowa |
| 62 | William Mckinney THIS PERSON | 18 | Son | Porter | Iowa |
| 63 | Mary Mckinney | 16 | Daughter | — | Iowa |
| 64 | Ed Johnson | 50 | Head | Employer | Illinois |
| 65 | Stella Johnson | 48 | Wife | — | Iowa |
| 66 | Ellis Grade | 56 | Head | — | — |
| 67 | Cecil Grade | 24 | Son | — | — |
| 68 | Edward Backwood | 68 | Head | Barber | Iowa |
| 69 | Melissa Burns | 64 | Head | — | Illinois |
| 70 | Marion Strating | 76 | Head | — | Illinois |
| 71 | Ada Strating | 66 | Wife | — | Illinois |
| 72 | Ted Strating | 39 | Son | Tile Setter | Illinois |
| 73 | Maxine Strating | 16 | Grandchild | — | Iowa |
| 74 | Boyd Roush | 28 | Head | Laborer | Missouri |
| 75 | Jessie Roush | 25 | Wife | — | Iowa |
| 76 | Gloria Roush | 6 | Daughter | — | Iowa |
| 77 | Jesse Roush | 2 | Son | — | Iowa |
| 78 | Robert Roush | 0 | Son | — | Iowa |
| 79 | Arthur Rapp | 41 | Head | — | Missouri |
| 80 | Ina Rapp | 40 | Wife | — | Missouri |
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)