HW
Harold Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Indiana
Our Model Tree links this Harold Williams across the 1930 and 1940 US Censuses in Montgomery-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Indiana |
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Walnut Twp |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Walnut Twp |
| Est. Birth Year | ~1921 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Mary Williams | Daughter | — | 11 | ~1929 |
| Doris Williams | Daughter | — | 5 | ~1935 |
| Blanche Williams | Daughter | — | 17 | ~1923 |
| Aileen Williams | Daughter | — | 9 | ~1931 |
| Helen Williams | Daughter | — | 14 | ~1926 |
| Earl Williams | Head | — | 47 | ~1893 |
| Harold Williams | Son | — | 19 | ~1921 |
| Homer Williams | Son | — | 15 | ~1925 |
| Howard Williams | Son | — | 12 | ~1928 |
| Mellie Williams | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Montgomery, Indiana
Son, age 9
Montgomery, Indiana · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Montgomery-County, Indiana
Son, age 19
Montgomery-County, Indiana · implied b. ~1921 — 10 household members
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Walnut Twp |
| 1935 Residence (County) | Montgomery |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Harold Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harold Williams
Son · 1940 · age 19 · b. ~1921 · Indiana
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Sibling
Doris Williams
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Williams
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Homer Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Williams
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Williams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Aileen Williams
Sibling · 1940 · age 9
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 — Montgomery-County, Indiana
Open full size
1940 US Federal Census — Montgomery-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01080-00779)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William A. Bratton | 58 | Head | Farmer | Indiana |
| 2 | Fern R. Bratton | 45 | Wife | — | Indiana |
| 3 | Beverly J. Bratton | 11 | Daughter | — | Indiana |
| 4 | Robert E. Reed | 61 | Head | Farmer | Virginia |
| 5 | Bertha Reed | 55 | Wife | — | Indiana |
| 6 | Mark S. Byrd | 58 | Head | Thresher | Indiana |
| 7 | Carrie F. Byrd | 54 | Wife | — | Indiana |
| 8 | William M. Groves | 20 | Head | Farmer | Indiana |
| 9 | Margaret Groves | 25 | Wife | — | Indiana |
| 10 | Billie Joe Groves | 4 | Son | — | Indiana |
| 11 | Donald Lee Groves | 3 | Son | — | Indiana |
| 12 | Carol Ann Groves | 1 | Daughter | — | Indiana |
| 13 | Charles W. Evans | 51 | Head | Farmer | Indiana |
| 14 | Helen H. Evans | 35 | Wife | — | Indiana |
| 15 | Claude D. Bronaugh | 48 | Head | Farmer | Idaho |
| 16 | Opal Bronaugh | 45 | Wife | — | Indiana |
| 17 | Nettie E. Bronaugh | 16 | Daughter | — | Indiana |
| 18 | Charles M. Bronaugh | 14 | Son | — | Indiana |
| 19 | John W. Bronaugh | 10 | Son | — | Indiana |
| 20 | Earl M. Williams | 47 | Head | Farmer | Illinois |
| 21 | Mellie C. Williams | 47 | Wife | — | Indiana |
| 22 | Harold Williams THIS PERSON | 19 | Son | Laborer | Indiana |
| 23 | Blanche Williams | 17 | Daughter | — | Indiana |
| 24 | Homer Williams | 15 | Son | — | Indiana |
| 25 | Helen Williams | 14 | Daughter | — | Indiana |
| 26 | Howard Williams | 12 | Son | — | Indiana |
| 27 | Mary Williams | 11 | Daughter | — | Indiana |
| 28 | Aileen Williams | 9 | Daughter | — | Indiana |
| 29 | Doris Williams | 5 | Daughter | — | Indiana |
| 30 | Charles M. Finn | 62 | Head | Farmer | Indiana |
| 31 | Maud M. Finn | 57 | Wife | — | Indiana |
| 32 | A. T. Elliott | 77 | Head | Farmer | Indiana |
| 33 | Rebecca C. Elliott | 75 | Wife | — | Indiana |
| 34 | Lloyd Chadwick | 38 | Head | Farmer | Indiana |
| 35 | Mary Chadwick | 35 | Wife | — | Indiana |
| 36 | Eugene Chadwick | 15 | Son | — | Indiana |
| 37 | Wilma Chadwick | 13 | Son | — | Indiana |
| 38 | Vinnie Chadwick | 64 | Head | — | Indiana |
| 39 | Charles Wingert | 72 | Head | Farmer | Indiana |
| 40 | Maria M. Wingert | 75 | Wife | — | 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)