WB
William Buchanan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this William Buchanan across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 4-person household.
Age 78
b. ~1862
Male
Head
Born: Missouri
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Buchanan |
| Given Name | William D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| 1935 Residence (City) | Urbana City |
| Additional Details | |
| Occupation | Salesman |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Salesman |
| Township / Ward | Urbana City |
| Est. Birth Year | ~1862 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Rosemary Woodworth | Other | — | 26 | ~1914 |
| William Buchanan | Head | — | 78 | ~1862 |
| May Buchanan | Daughter | — | 51 | ~1889 |
| Clarissa Lewis | Other | — | 38 | ~1902 |
Census Appearances
1920
Champaign, Illinois
Other, age 57
Champaign, Illinois · implied b. ~1863 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | William S |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Agent |
| Industry | Life Insurance |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Champaign, Illinois
Head, age 68
Champaign, Illinois · implied b. ~1862 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Salesman |
| Industry | General Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Champaign-County, Illinois
Head, age 78
Champaign-County, Illinois · implied b. ~1862 — 4 household members
| Surname | Buchanan |
| Given Name | William D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| 1935 Residence (City) | Urbana City |
| Occupation | Salesman |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 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 Buchanan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Buchanan
Head · 1940 · age 78 · b. ~1862 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00766-00174)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles W Mathews | 24 | Head | Teaching | Missouri |
| 2 | Jane Mathews | 22 | Wife | Teaching | Missouri |
| 3 | Frank O Harper | 45 | Head | Engineer Rr | Indiana |
| 4 | Crystal Harper | 44 | Wife | — | Indiana |
| 5 | Eloise Harper | 17 | Daughter | — | Indiana |
| 6 | Roy Harper | 16 | Son | — | Same Place |
| 7 | Gordon Hatch | 35 | Head | Laborer | Illinois |
| 8 | Frances Hatch | 29 | Wife | — | Louisiana |
| 9 | Frances Wooldridge | 19 | Head | Laborer | Illinois |
| 10 | Edith Wooldridge | 15 | Sister | Saleslady | Indiana |
| 11 | Samuel A Marshall | 64 | Lodger | Retired | Indiana |
| 12 | Lois Richard | 36 | Lodger | New Worker | Arkansas |
| 13 | William D Buchanan THIS PERSON | 78 | Head | Salesman | Missouri |
| 14 | May Buchanan | 51 | Daughter | Salesman | Missouri |
| 15 | Clarissa Lewis | 38 | Lodger | Salesman | Iowa |
| 16 | Rosemary Woodworth | 26 | Lodger | Chief Clerk | Illinois |
| 17 | Morris S Gordon | 39 | Head | Manager | Illinois |
| 18 | Amanda Gordon | 43 | Wife | — | Illinois |
| 19 | Charles Gordon | 9 | Son | — | Illinois |
| 20 | Elmer Shepherd | 63 | Head | Painter | Illinois |
| 21 | Nannie Shepherd | 48 | Wife | Alteration | Kentucky |
| 22 | Hortense Shepherd | 19 | Daughter | Developing Pictures | Illinois |
| 23 | Harry E Buckner | 41 | Head | Paving Contractor | Illinois |
| 24 | Mary C Buckner | 37 | Wife | — | Illinois |
| 25 | James Franklin Buckner | 12 | Son | — | Illinois |
| 26 | Carla Young | 51 | Servant | House Work | Illinois |
| 27 | John Coombs | 52 | Head | Civil Engineering | Wisconsin |
| 28 | Bernice Coombs | 27 | Wife | — | Wisconsin |
| 29 | Barbara Jean Coombs | 4 | Daughter | — | Illinois |
| 30 | Alfred E Badger | 40 | Head | Research Ceramic Engineer | Ohio |
| 31 | Winifred Badger | 39 | Wife | — | Illinois |
| 32 | Cecil R Maguire | 18 | Step son | — | Illinois |
| 33 | Janet Diane Maguire | 7 | Step daughter | — | Illinois |
| 34 | Robert B Badger | 0 | Son | — | Illinois |
| 35 | Minnie A Weeks | 67 | Head | — | Indiana |
| 36 | Kenneth O Weeks | 25 | Son | Road Maintenance | Illinois |
| 37 | Wendell Weeks | 23 | Son | Hand Craft Research | Illinois |
| 38 | Helen Gladson | 40 | Daughter | Housework | Illinois |
| 39 | Maxine Gladson | 17 | Granddaughter | — | Illinois |
| 40 | William Brandon Gladson | 12 | Grandson | — | Illinois |
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)