CW
Clifford Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Clifford Williams across the 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Williams |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | E. St. Louis City |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | E St Louis City |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clifford | Age | Birth yr |
|---|---|---|---|---|
| Clifford Williams | Son | — | 11 | ~1929 |
| Lafayette Williams | Head | — | 42 | ~1898 |
| Patsy Williams | Daughter | — | 15 | ~1925 |
| Johnnie Williams | Son | — | 18 | ~1922 |
| Bernard Williams | Son | — | 5 | ~1935 |
| Arlene Williams | Daughter | — | 23 | ~1917 |
| Delbert Williams | Son | — | 8 | ~1932 |
| Frank Williams | Son | — | 17 | ~1923 |
| Jimmie Williams | Son | — | 21 | ~1919 |
Census Appearances
1930
St Clair, …
Son, age 1
St Clair, Illinois · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Son, age 11
St.-Clair-County, Illinois · implied b. ~1929 — 9 household members
| Surname | Williams |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | E. St. Louis City |
| 1935 Residence (County) | St. Clair |
| Highest Grade | No 4 |
| 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 Clifford Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clifford Williams
Son · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Frank Williams
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patsy Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delbert Williams
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jimmie Williams
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Williams
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnnie Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arlene Williams
Sibling · 1940 · age 23
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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00881-00016)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marguerite Anderson | 5 | daughter | — | Illinois |
| 2 | Lula Daniels | 11 | lodger | — | Illinois |
| 3 | Hugo Edmonds | 40 | Head | Laborer | Mississippi |
| 4 | Dora Edmonds | 41 | Wife | — | Mississippi |
| 5 | Thelma Miller | 12 | lodger | — | Illinois |
| 6 | Caldonia Thornton | 45 | Head | — | Mississippi |
| 7 | Son Douglas | 19 | Son | — | Arkansas |
| 8 | Annie Wheeler | 25 | Head | Songstress | Mississippi |
| 9 | Packard Little | 24 | brother | Laborer | Mississippi |
| 10 | John Miller | 40 | Head | Yard-Man | Mississippi |
| 11 | John Jr. Miller | 2 | son | — | Illinois |
| 12 | Frank Edwards | 31 | Head | — | Georgia |
| 13 | A. C. Edwards | 12 | son | — | Illinois |
| 14 | James Edwards | 10 | son | — | Illinois |
| 15 | Willie Edwards | 8 | son | — | Illinois |
| 16 | Lafayette Williams | 42 | Head | — | Mississippi |
| 17 | Arlene Williams | 23 | daughter | — | Mississippi |
| 18 | Jimmie Williams | 21 | son | Laborer | Mississippi |
| 19 | Johnnie Williams | 18 | son | Music Pupil | Mississippi |
| 20 | Frank Williams | 17 | son | — | Mississippi |
| 21 | Patsy Williams | 15 | daughter | — | Illinois |
| 22 | Clifford Williams THIS PERSON | 11 | son | — | Illinois |
| 23 | Delbert Williams | 8 | son | — | Illinois |
| 24 | Bernard Williams | 5 | son | — | Illinois |
| 25 | Silas Gentry | 41 | Head | Laborer | Mississippi |
| 26 | Beulah Gentry | 41 | Wife | — | Mississippi |
| 27 | Jason Green | 46 | Head | Laborer | Mississippi |
| 28 | Mary Green | 40 | Wife | — | Mississippi |
| 29 | Napoleon Green | 50 | Head | Laborer | Mississippi |
| 30 | Sarah Green | 45 | Wife | — | Mississippi |
| 31 | Junnie Dennis | 48 | Head | — | Mississippi |
| 32 | Annie Dennis | 10 | daughter | — | Illinois |
| 33 | Harvey Ware | 29 | lodger | Laborer | Mississippi |
| 34 | Frank Coleman | 49 | Head | — | Louisiana |
| 35 | Dukey Mcfarland | 52 | lodger | — | Mississippi |
| 36 | Clarence Young | 32 | Head | Laborer | Arkansas |
| 37 | Walter Burkett | 38 | lodger | — | Illinois |
| 38 | Annie B. Burkett | 30 | lodger | — | Arkansas |
| 39 | Carl Patterson | 26 | lodger | Laborer | Missouri |
| 40 | Frank Warrior | 51 | Head | Laborer | Alabama |
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)