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Leonard Williams — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Leonard Williams across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Pierce & Pierce — first a son (b.~1910), then head of a 5-person household.
Age 20
b. ~1910
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Williams |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Additional Details | |
| Occupation | Delivery Boy |
| Industry | Dress shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Delivery Boy |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Theodore Williams | Son | — | 23 | ~1907 |
| Leonard Williams | Son | — | 20 | ~1910 |
| Pierce Williams | Head | — | 45 | ~1885 |
| Jessie Williams | Other | — | 40 | ~1890 |
| Randolph Williams | Son | — | 21 | ~1909 |
Census Appearances
1910
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lenard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Leonard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 20
Cook, Illinois · implied b. ~1910 — 5 household members
| Surname | Williams |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | Delivery Boy |
| Industry | Dress shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Leonard Williams across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Pierce Williams (~0.92 confidence) and father Pierce Williams (~0.92 confidence) and father Purle Williams (~0.92 confidence) and mother Carrie Williams (~0.92 confidence) and mother Carrie Williams (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Pierce Williams
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Pierce Williams
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Purle Williams
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Carrie Williams
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Carrie Williams
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leonard Williams
Son · 1930 · age 20 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Randolph Williams
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Williams
Sibling · 1930 · 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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel438:0127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Hattie Washington | 23 | Wife-H | Maid | Tennessee |
| 52 | Lillie M. Washington | 19 | Niece | Laborer | Georgia |
| 53 | Walter Scott | 44 | Head | Laborer | Illinois |
| 54 | Inez H. Scott | 36 | Wife-H | — | Illinois |
| 55 | Edith Scott | 16 | Daughter | — | Illinois |
| 56 | Martha Linton | 50 | Aunt | Dishwasher | Illinois |
| 57 | Helen Scott | 5 | Niece | — | Illinois |
| 58 | Walter Scott | 1 | Grandson | — | Illinois |
| 59 | Will Ford | 46 | Head | Laborer | Mississippi |
| 60 | Mary H. Ford | 45 | Wife-H | — | Florida |
| 61 | James Taylor | 18 | Nephew | Chauffeur | Mississippi |
| 62 | Henry Thompson | 47 | Head | Expressman | Kentucky |
| 63 | Elnora H. Thompson | 28 | Wife-H | — | West Virginia |
| 64 | Rufus Powell | 36 | Head | Laborer | Georgia |
| 65 | Maria H. Powell | 26 | Wife-H | — | Mississippi |
| 66 | William Thomas | 68 | Father-in-law | Laborer | Mississippi |
| 67 | Rachel Thomas | 60 | Mother-in-law | — | Mississippi |
| 68 | Pierce Williams | 45 | Head | Laborer | Georgia |
| 69 | Jessie H. Williams | 40 | Wife-H | — | Georgia |
| 70 | Theodore Williams | 23 | Son | Porter | Illinois |
| 71 | Randolph Williams | 21 | Son | Press Boy | Illinois |
| 72 | Leonard Williams THIS PERSON | 20 | Son | Delivery Boy | Illinois |
| 73 | Ishom Robinson | 68 | Head | Broom Maker | Georgia |
| 74 | Corrie H. Robinson | 36 | Wife-H | — | Kentucky |
| 75 | Paul Adams | 35 | Brother-in-law | Porter | Kentucky |
| 76 | Gus Odom | 41 | Head | Laborer | Georgia |
| 77 | Amanda H. Odom | 34 | Wife-H | — | Kentucky |
| 78 | Henry Lumpkin | 50 | Head | Laborer | Georgia |
| 79 | John Williams | 34 | Son-in-law | Laborer | Georgia |
| 80 | Irene H. Williams | 26 | Daughter | — | Georgia |
| 81 | Florence Bostick | 24 | Daughter | Maid | Georgia |
| 82 | Dave Chappell | 50 | Roomer | Laborer | Georgia |
| 83 | Malvina Chappell | 38 | Roomer | — | Mississippi |
| 84 | John Lightle | 23 | Head | Laborer | Arkansas |
| 85 | Theresa Lightle | 24 | Wife-H | Maid | South Carolina |
| 86 | Emma Lightle | 49 | Mother | — | Arkansas |
| 87 | Grover Lightle | 22 | Brother | Laborer | Arkansas |
| 88 | Arthur Grages | 23 | Brother-in-law | Laborer | Alabama |
| 89 | Lula Grages | 20 | Sister | — | Arkansas |
| 90 | Emma L. Grages | 4 | Niece | — | Arkansas |
| 91 | Samuel Jones | 46 | Head | Laborer | Arkansas |
| 92 | Mattie H. Jones | 39 | Wife-H | — | Arkansas |
| 93 | Lenora Dusan | 19 | Daughter | Helper | Arkansas |
| 94 | William Dusan | 17 | Son | Porter | Arkansas |
| 95 | Lucille Dusan | 14 | Daughter | — | Arkansas |
| 96 | John Miller | 58 | Head | Junk Man | Tennessee |
| 97 | Ella H. Miller | 80 | Mother | — | Mississippi |
| 98 | Johnny Mcgruder | 6 | Nephew | — | Tennessee |
| 99 | Lola Flemming | 11 | Niece | — | Tennessee |
| 100 | Curtis Hankerson | 37 | Head | Laborer | Georgia |
Related Census Records
Pedigree Summary
Leonard + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)