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John Pierce — 1940 US Census Record
Model Tree available1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this John Pierce across the 1920, 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed), with identified parents Jessie & Louis — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Pierce |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Wood River City |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Highest Grade | C-2 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Wood River City |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Jessie Pierce | Head | — | 50 | ~1890 |
| Mabel Ditch | Other | — | 38 | ~1902 |
| John Pierce | Son | — | 22 | ~1918 |
| Ethel Pierce | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Madison, Illinois
Son, age 1
Madison, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Madison, Illinois
Son, age 12
Madison, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Madison-County, Illinois
Son, age 22
Madison-County, Illinois · implied b. ~1918 — 4 household members
| Surname | Pierce |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Wood River City |
| 1935 Residence (County) | Madison |
| Highest Grade | C-2 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 John Pierce across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jessie Pierce (~0.92 confidence) and father Louis Pierce (~0.92 confidence) and mother Ethel Pierce (~0.92 confidence) and father Hossie Pierce (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jessie Pierce
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Louis Pierce
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Ethel Pierce
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Hossie Pierce
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Pierce
Son · 1940 · age 22 · b. ~1918 · 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 — Madison-County, Illinois
Open full size
1940 US Federal Census — Madison-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00851-00843)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Warren Specht | 18 | Son | Clerk | Illinois |
| 2 | Mary Lou Specht | 16 | Daughter | — | Illinois |
| 3 | Henry Mcnelly | 24 | Boarder | Operator | Arkansas |
| 4 | George Gordon | 33 | Lodger | Pipe Fitter | Illinois |
| 5 | Jessie Pierce | 50 | Head | Stillman | Ohio |
| 6 | Ethel Pierce | 48 | Wife | — | Ohio |
| 7 | John W. Pierce THIS PERSON | 22 | Son | — | Illinois |
| 8 | Mabel Ditch | 38 | Lodger | Teacher | Illinois |
| 9 | Fenton Holiday | 49 | Head | Superintendent | Pennsylvania |
| 10 | Josephine Holiday | 47 | Wife | — | Illinois |
| 11 | John Doering | 38 | Head | Operator | Illinois |
| 12 | Loretta Doering | 34 | Daughter | Stenographer | Illinois |
| 13 | J. L. Mcmanus | 32 | Head | Tester | Illinois |
| 14 | Carla Mcmanus | 34 | Wife | — | Illinois |
| 15 | Carla Mcmanus | 1 | Daughter | — | Illinois |
| 16 | W. V. Robinson | 29 | Head | Physician & Surgeon | Illinois |
| 17 | Margaret Robinson | 26 | Wife | — | Illinois |
| 18 | Billie Robinson | 3 | Son | — | Illinois |
| 19 | David Robinson | 2 | Son | — | Illinois |
| 20 | Lillian Baker | 50 | Servant | Servant | Illinois |
| 21 | W. H. Slighton | 41 | Head | Assistant Water Tender | Illinois |
| 22 | Dessa Slighton | 39 | Wife | — | Illinois |
| 23 | Dorothy Slighton | 19 | Daughter | Beautician | Illinois |
| 24 | Doris Slighton | 17 | Daughter | — | Illinois |
| 25 | William Spicer | 28 | Head | Stillman Helper | Kentucky |
| 26 | Lillian Spicer | 28 | Wife | — | Kentucky |
| 27 | William E. Spicer | 3 | Son | — | Illinois |
| 28 | Larry Spicer | 1 | Son | — | Illinois |
| 29 | Harold Walter | 35 | Head | Mail-Carrier | Illinois |
| 30 | Erna Walter | 31 | Wife | — | Illinois |
| 31 | Donald Walter | 8 | Son | — | Illinois |
| 32 | Earl R. Dyer | 31 | Head | Welder | Illinois |
| 33 | Martha Dyer | 31 | Wife | — | Illinois |
| 34 | Densil Dyer | 10 | Son | — | Illinois |
| 35 | Lovell Earl Dyer | 6 | Son | — | Illinois |
| 36 | David Lee Dyer | 3 | Son | — | Illinois |
| 37 | Herley Shirley | 36 | Head | Electrician | Illinois |
| 38 | Margaret Shirley | 31 | Wife | — | Illinois |
| 39 | Shirley Jean Shirley | 7 | Daughter | — | Illinois |
| 40 | Ronald Shirley | 2 | Son | — | Illinois |
Pedigree Summary
John
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)