JC
John Clifford — 1940 US Census Record
Model Tree available1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this John Clifford across the 1920, 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Bertie — first a head (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Clifford |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Alton City |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Rodman |
| Industry | Civil Engineering Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Rodman |
| Township / Ward | Alton City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Laverne Clifford | Spouse | — | 31 | ~1909 |
| Jack Clifford | Son | — | 9 | ~1931 |
| Birdie Clifford | Other | — | 62 | ~1878 |
| John Clifford | Head | — | 33 | ~1907 |
Census Appearances
1920
Madison, Illinois
Son, age 13
Madison, Illinois · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clifford |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Madison, Illinois
Son, age 23
Madison, Illinois · implied b. ~1907 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clifford |
| Given Name | John B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Madison-County, Illinois
Head, age 33
Madison-County, Illinois · implied b. ~1907 — 4 household members
| Surname | Clifford |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Alton City |
| 1935 Residence (County) | Madison |
| Occupation | Rodman |
| Industry | Civil Engineering Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| 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 Clifford across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Clifford (~0.92 confidence) and mother Bertie Clifford (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Clifford
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Bertie Clifford
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Clifford
Head · 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 — 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-t0627-00848-00042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence Hendricks | 46 | Wife | — | Illinois |
| 2 | William Hendricks | 16 | Son | — | Illinois |
| 3 | Jacob Hack | 39 | Head | Technician | New York |
| 4 | Opal Hack | 34 | Wife | — | Louisiana |
| 5 | Richard Hauser | 30 | Head | Credit Manager | Ohio |
| 6 | Mary Hauser | 27 | Wife | — | Illinois |
| 7 | Catherine Coleman | 21 | Sister-in-law | Office Clerk | Michigan |
| 8 | Ludmilla Coleman | 52 | Mother-in-law | Dietitian | Germany |
| 9 | Herman Brueggeman | 59 | Head | Stone Mason | Illinois |
| 10 | Mildred Brueggeman | 23 | Daughter | Stenographer | Illinois |
| 11 | Samuel Baker | 36 | Head | Pressman | Mississippi |
| 12 | Helen Baker | 35 | Wife | — | Illinois |
| 13 | Roger Baker | 15 | Son | — | Illinois |
| 14 | Victor Mans | 37 | Head | Superintendent | Illinois |
| 15 | Gertrude Mans | 37 | Wife | — | Missouri |
| 16 | Michael Condray | 48 | Head | Groundman | Illinois |
| 17 | Nellie Condray | 50 | Wife | — | Illinois |
| 18 | Adrian Condray | 22 | Son | Electrician | Illinois |
| 19 | John Clifford THIS PERSON | 33 | Head | Rodman | Illinois |
| 20 | Laverne Clifford | 31 | Wife | — | Illinois |
| 21 | Jack Clifford | 9 | Son | — | Illinois |
| 22 | Birdie Clifford | 62 | Mother | Housekeeper | Illinois |
| 23 | Charles Butler | 30 | Head | Truck Driver | Illinois |
| 24 | Margaret Butler | 30 | Wife | — | Illinois |
| 25 | Marcella Butler | 11 | Daughter | — | Illinois |
| 26 | Walter Craig | 49 | Head | Investigator | Illinois |
| 27 | Nellie Craig | 48 | Wife | — | Illinois |
| 28 | Arthur Whitemore | 49 | Head | Switchman | Missouri |
| 29 | Marian Whitemore | 39 | Wife | — | Missouri |
| 30 | Fred Stumberg | 60 | Head | Excavating | Illinois |
| 31 | Hannie Stumberg | 43 | Wife | — | Illinois |
| 32 | Ralph Wallace | 41 | Head | Treasurer | Illinois |
| 33 | Margaret Wallace | 40 | Wife | — | Illinois |
| 34 | John Wallace | 16 | Son | — | Illinois |
| 35 | Marguerite Wallace | 12 | Daughter | — | Illinois |
| 36 | Ralph Wallace | 10 | Son | — | Illinois |
| 37 | Here Ends | None | Block 2000 | — | — |
| 38 | Courtney Spencer | 25 | Head | Barber | Illinois |
| 39 | Peggy Spencer | 25 | Wife | — | Illinois |
| 40 | Patricia A. Spencer | 1 | Daughter | — | Illinois |
Pedigree Summary
John
Gen 1 · 2 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)