WA
William Allen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, Illinois
Our Model Tree links this William Allen across the 1920, 1930 and 1940 US Censuses in Mercer-County, Illinois (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Illinois |
| Surname | Allen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | North Henderson |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Laborer |
| Industry | Seed house |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 700 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Laborer |
| Township / Ward | North Henderson |
| Est. Birth Year | ~1907 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| George Allen | Head | — | 66 | ~1874 |
| William Allen | Son | — | 33 | ~1907 |
| Mary Allen | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Mercer, Illinois
Son, age 12
Mercer, Illinois · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | William W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Mercer, Illinois
Son, age 23
Mercer, Illinois · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Seed House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Mercer-County, Illinois
Son, age 33
Mercer-County, Illinois · implied b. ~1907 — 3 household members
| Surname | Allen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | North Henderson |
| 1935 Residence (County) | Mercer |
| Occupation | Laborer |
| Industry | Seed house |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 700 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Allen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Allen (~0.92 confidence) and father George Allen (~0.92 confidence) and mother Gladys Allen (~0.92 confidence) and mother Mary Allen (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Allen
b. ~1874
Source father
● Household
· direct · ~0.92
Father
George Allen
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Gladys Allen
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Mary Allen
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Allen
Son · 1940 · age 33 · b. ~1907 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, Illinois
Open full size
1940 US Federal Census — Mercer-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00858-00376)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ralph Edgar | 40 | Son | Manager | Illinois |
| 42 | John Becker | 65 | Head | Carpenter | Germany |
| 43 | Edna Becker | 36 | Daughter | Housekeeper | Illinois |
| 44 | Betty Becker | 19 | Daughter | Housekeeper | Illinois |
| 45 | Nellie Jean Becker | 16 | Daughter | — | Illinois |
| 46 | Roy Loquist | 34 | Head | Laborer | Illinois |
| 47 | Marie Loquist | 25 | Wife | — | Illinois |
| 48 | Jeannine Loquist | 3 | Daughter | — | Illinois |
| 49 | Gary Loquist | 2 | Son | — | Illinois |
| 50 | Frank Bruner | 56 | Head | Mail Carrier | Illinois |
| 51 | Grace Bruner | 53 | Wife | — | Illinois |
| 52 | Charles Tornquist | 57 | Head | Blacksmith | Illinois |
| 53 | Fern Tornquist | 51 | Wife | Housework | Illinois |
| 54 | William Tornquist | 18 | Son | Laborer | Illinois |
| 55 | James Tornquist | 16 | Son | — | Illinois |
| 56 | Edward Ashley | 28 | Head | Painter | Illinois |
| 57 | Ida Ashley | 21 | Wife | Telephone Operator | Illinois |
| 58 | Billy Williamson | 12 | Niece | — | Illinois |
| 59 | Mary Jean Williamson | 10 | Niece | — | Illinois |
| 60 | George Allen | 66 | Head | Laborer | Illinois |
| 61 | Mary Allen | 61 | Wife | Nursing | Wisconsin |
| 62 | William Allen THIS PERSON | 33 | Son | Laborer | Wisconsin |
| 63 | Ruben Stover | 64 | Head | Day Laborer | Maryland |
| 64 | Bertha Stover | 61 | Wife | Practical Nurse | Maryland |
| 65 | Guy Taylor | 44 | Head | Barber | Illinois |
| 66 | Lorraine Taylor | 38 | Wife | Barber | Illinois |
| 67 | Harold Taylor | 21 | Son | Laborer | Illinois |
| 68 | August Lunn | 72 | Head | — | Sweden |
| 69 | Ruben Lunn | 38 | Son | — | Illinois |
| 70 | John Anderson | 72 | Head | — | Illinois |
| 71 | Timothy Stepleton | 50 | Head | Barber | Illinois |
| 72 | Harley Mcgary | 50 | Head | Farmer | Ohio |
| 73 | Minnie Mcgary | 42 | Wife | Far | Illinois |
| 74 | Lavon Mcgary | 19 | Daughter | Maid | Illinois |
| 75 | Duwain Mcgary | 18 | Son | Laborer | Illinois |
| 76 | Wilbur Mcgary | 16 | Son | Laborer | Illinois |
| 77 | Charles Miller | 68 | Head | — | Sweden |
| 78 | Emily Miller | 63 | Wife | — | Sweden |
| 79 | James Shelly | 55 | Head | Laborer | Illinois |
| 80 | Minna Shelly | 53 | Wife | — | Illinois |
Pedigree Summary
William
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)