WU
William Underwood — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Indiana
Our Model Tree links this William Underwood across the 1930 and 1940 US Censuses in Monroe-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Indiana |
| Surname | Underwood |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | G 5 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Bloomington |
| Est. Birth Year | ~1930 |
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 |
|---|---|---|---|---|
| Alice Underwood | Daughter | — | 13 | ~1927 |
| Martha Underwood | Daughter | — | 12 | ~1928 |
| Leslie Underwood | Head | — | 33 | ~1907 |
| William Underwood | Son | — | 10 | ~1930 |
| Charlotte Underwood | Daughter | — | 15 | ~1925 |
| Nellie Underwood | Spouse | — | 34 | ~1906 |
| Robert Underwood | Son | — | 8 | ~1932 |
Census Appearances
1930
Monroe, Indiana
Son, age
Monroe, Indiana · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | William L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Monroe-County, Indiana
Son, age 10
Monroe-County, Indiana · implied b. ~1930 — 7 household members
| Surname | Underwood |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington |
| 1935 Residence (County) | Monroe |
| Class of Worker | 0 |
| Highest Grade | G 5 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 10 · b. ~1930 · Indiana
★ You are viewing this record
Sibling
Alice Underwood
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Underwood
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Underwood
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Underwood
Sibling · 1940 · age 8
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 — Monroe-County, Indiana
Open full size
1940 US Federal Census — Monroe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01079-00435)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carolyn Reynolds | 8 | Daughter | — | Indiana |
| 42 | Barbara Reynolds | 6 | Daughter | — | Indiana |
| 43 | Esta Covey | 49 | Lodger | Domestic | Indiana |
| 44 | Russell P. Terry | 47 | Head | Brake Man | Indiana |
| 45 | Florence Terry | 44 | Wife | None | Indiana |
| 46 | Fern Maria Terry | 22 | Daughter | Filing | Indiana |
| 47 | Winford R. Fyffe | 36 | Head | Service Mgr. | Indiana |
| 48 | Elizabeth Fyffe | 32 | Wife | None | Indiana |
| 49 | Max R. Fyffe | 10 | Son | — | Indiana |
| 50 | Erle Sitten | 29 | Lodger | Auto Parts | Indiana |
| 51 | Robert E. Martson | 39 | Head | Merchant | Indiana |
| 52 | Elsie V. Martson | 36 | Wife | None | Indiana |
| 53 | Marilyn N. Martson | 12 | Daughter | — | Indiana |
| 54 | Virginia S. Martson | 11 | Daughter | — | Indiana |
| 55 | Carroll G. Pitcher | 34 | Head | Bookkeeper | Indiana |
| 56 | Laura Pitcher | 33 | Wife | None | Indiana |
| 57 | David Pitcher | 10 | Son | — | Indiana |
| 58 | Alice Hatley | 63 | Head | None | Indiana |
| 59 | Susan Williams | 89 | Mother | None | Indiana |
| 60 | Ray Preselle | 36 | Lodger | Estimator | Illinois |
| 61 | Galdie Cot | 50 | Head | Teacher | Indiana |
| 62 | Marjorie Cot | 32 | Daughter | Teacher | Indiana |
| 63 | Talmage Wilson | 48 | Lodger | Doctor | Mississippi |
| 64 | Jack Heeler | 25 | Lodger | Job Printer | Arkansas |
| 65 | Mary East | 56 | Head | None | Indiana |
| 66 | Sarah Hawkins | 84 | Mother | None | Indiana |
| 67 | Donald Smith | 31 | Head | Clerk | Indiana |
| 68 | Mary V. Smith | 29 | Wife | None | Indiana |
| 69 | Kathleen Smith | 5 | Daughter | — | Indiana |
| 70 | Ella Hyland | 69 | Mother in law | None | Ohio |
| 71 | Harold Bender | 28 | Head | Salesman | Indiana |
| 72 | Christine Bender | 28 | Wife | None | Indiana |
| 73 | John Bender | 1 | Son | — | Indiana |
| 74 | Leslie Underwood | 33 | Head | Labor | Indiana |
| 75 | Nellie Underwood | 34 | Wife | None | Indiana |
| 76 | Charlotte L. Underwood | 15 | Daughter | — | Indiana |
| 77 | Alice A. Underwood | 13 | Daughter | — | Indiana |
| 78 | Martha S. Underwood | 12 | Daughter | — | Indiana |
| 79 | William L. Underwood THIS PERSON | 10 | Son | — | Indiana |
| 80 | Robert E. Underwood | 8 | Son | — | Indiana |
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)