WU
William Underwood — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Saline-County, Missouri
Our Model Tree links this William Underwood across the 1930 and 1940 US Censuses in Saline-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Saline-County, Missouri |
| Surname | Underwood |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Sweet Springs |
| 1935 Residence (County) | Saline |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Marshall |
| 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 William | Age | Birth yr |
|---|---|---|---|---|
| Dona Underwood | Daughter | — | 3 | ~1937 |
| William Underwood | Head | — | 37 | ~1903 |
| Betty Underwood | Daughter | — | 11 | ~1929 |
| Reggie Beard | Other | — | 24 | ~1916 |
| William Underwood | Son | — | 13 | ~1927 |
| William Underwood | Daughter | — | 8 | ~1932 |
| Ruby Underwood | Spouse | — | 35 | ~1905 |
| Russell Underwood | Son | — | 5 | ~1935 |
Census Appearances
1930
Saline, Missouri
Son, age 3
Saline, Missouri · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Arkansas |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Saline-County, Missouri
Son, age 13
Saline-County, Missouri · implied b. ~1927 — 8 household members
| Surname | Underwood |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Sweet Springs |
| 1935 Residence (County) | Saline |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Underwood across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Underwood
Son · 1940 · age 13 · b. ~1927 · Missouri
★ You are viewing this record
Sibling
William Underwood
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Underwood
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Underwood
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dona Underwood
Sibling · 1940 · age 3
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 — Saline-County, Missouri
Open full size
1940 US Federal Census — Saline-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02155-01009)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry J. Hoecker | 50 | Head | Farmer | Missouri |
| 2 | Estella Hoecker | 47 | Wife | — | Missouri |
| 3 | Walter Hoecker | 16 | Son | — | Missouri |
| 4 | Viola Hoecker | 15 | Daughter | — | Missouri |
| 5 | Loraine Hoecker | 11 | Daughter | — | Missouri |
| 6 | Ellen Hoecker | 8 | Daughter | — | Missouri |
| 7 | William Hayot | 23 | Head | Farmer | Missouri |
| 8 | Genevieve Hayot | 25 | Wife | — | Missouri |
| 9 | Mary Ellen Hayot | 5 | Daughter | — | Missouri |
| 10 | George B. Hagen | 77 | Head | — | Pennsylvania |
| 11 | Mary Hagen | 74 | Wife | — | Missouri |
| 12 | William L. Harrison | 48 | Head | Farmer | Missouri |
| 13 | Irene Harrison | 41 | Wife | — | Missouri |
| 14 | Dewese Harrison | 20 | Son | Farmer | Missouri |
| 15 | Myrtle Harrison | 16 | Daughter | — | Missouri |
| 16 | William D. Winslow | 51 | Head | Farmer | Missouri |
| 17 | Stella Winslow | 54 | Sister | — | Missouri |
| 18 | Henry B. Winslow | 36 | Head | Farmer | Missouri |
| 19 | Mabel Winslow | 39 | Wife | — | Missouri |
| 20 | Virginia Winslow | 6 | Daughter | — | Missouri |
| 21 | William Jr. Castle | 40 | Head | Farmer | Missouri |
| 22 | Winifred Castle | 36 | Wife | — | Missouri |
| 23 | Patricia Ann Castle | 14 | Daughter | — | Missouri |
| 24 | Jean Castle | 12 | Daughter | — | Missouri |
| 25 | Glennon Castle | 10 | Son | — | Missouri |
| 26 | Elenor Castle | 8 | Daughter | — | Missouri |
| 27 | William Castle | 5 | Son | — | Missouri |
| 28 | Sarah Castle | 0 | Daughter | — | Missouri |
| 29 | Lawrence H. Winslow | 67 | Head | Farmer | Missouri |
| 30 | Gertrude Winslow | 63 | Wife | — | Missouri |
| 31 | William Underwood | 37 | Head | Foreman | Missouri |
| 32 | Ruby Underwood | 35 | Wife | — | Arkansas |
| 33 | William Jr. Underwood THIS PERSON | 13 | Son | — | Missouri |
| 34 | Betty Jane Underwood | 11 | Daughter | — | Missouri |
| 35 | William Pearl Underwood | 8 | Daughter | — | Missouri |
| 36 | Russell Harold Underwood | 5 | Son | — | Missouri |
| 37 | Dona Louise Underwood | 3 | Daughter | — | Missouri |
| 38 | Reggie Beard | 24 | Boarder | Laborer | Kansas |
| 39 | Herbert Kopp | 41 | Head | Farmer | Missouri |
| 40 | Alma Kopp | 33 | 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)