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Marion Williams — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Marion Williams across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 2
b. ~1928
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Williams |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Marion Williams | Daughter | — | 2 | ~1928 |
| Doris Williams | Daughter | — | 5 | ~1925 |
| David Williams | Head | — | 44 | ~1886 |
| Lena Williams | Other | — | 40 | ~1890 |
| Ralph Williams | Son | — | 7 | ~1923 |
| Robert Williams | Son | — | 9 | ~1921 |
| David Williams | Son | — | 16 | ~1914 |
| George Williams | Son | — | 19 | ~1911 |
| Raymond Williams | Son | — | 13 | ~1917 |
| Ernest-A Williams | Son | — | 20 | ~1910 |
Census Appearances
1930
Cook, Illinois
Daughter, age 2
Cook, Illinois · implied b. ~1928 — 10 household members
| Surname | Williams |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 12
Cook-County, Illinois · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Marianne |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 6 |
| 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 Marion Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marion Williams
Daughter · 1930 · age 2 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
David Williams
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Williams
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Williams
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Williams
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Williams
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Williams
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest-A Williams
Sibling · 1930 · age 20
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:illinoiscensus00reel434:0839)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Charlotte Hearty | 14 | Daughter | — | Illinois |
| 52 | Hazel Hearty | 12 | Daughter | — | Illinois |
| 53 | Charles, Jr. Hearty | 5 | Son | — | Illinois |
| 54 | Roger Hearty | 4 | Son | — | Illinois |
| 55 | Harry G. Hearty | 27 | Brother | Accountant | Illinois |
| 56 | Carl Kahlert | 48 | Head | Laborer | Illinois |
| 57 | Mary Kahlert | 45 | Wife-H | — | England |
| 58 | Stanley Meyers | 32 | Head | Inspector | Illinois |
| 59 | Rose Meyers | 22 | Wife-H | — | Iowa |
| 60 | Johannah Dillon | 60 | Head-H | Checker | Vermont |
| 61 | Robert Shanahan | 28 | Head | Constructor | Illinois |
| 62 | Anna Shanahan | 22 | Wife-H | — | Illinois |
| 63 | Ramona Shanahan | 5 | Daughter | — | Illinois |
| 64 | Thomas Shanahan | 33 | Brother | Office Clerk | Illinois |
| 65 | James-A. Shanahan | 31 | Brother | Constructor | Illinois |
| 66 | Theresa Plankl | 72 | Head-H | — | Germany-Bavaria |
| 67 | Josephine Plankl | 46 | Daughter | Operator | Illinois |
| 68 | Joseph Mckenna | 54 | Head | Iron-Worker | Dist. of Columbia |
| 69 | Isabelle Mckenna | 52 | Wife-H | — | Scotland |
| 70 | Stanley Rolek | 26 | Head | Jobber | Illinois |
| 71 | Irene Rolek | 26 | Wife-H | — | Illinois |
| 72 | Virginia Rolek | 5 | Daughter | — | Illinois |
| 73 | Lenore Rolek | 1 | Daughter | — | Illinois |
| 74 | George Lang | 27 | Brother-in-law | Laborer | Illinois |
| 75 | David Williams | 44 | Head | Engineer | Illinois |
| 76 | Lena Williams | 40 | Wife-H | — | Illinois |
| 77 | Ernest-A. Williams | 20 | Son | Baler-Maker | Illinois |
| 78 | George Williams | 19 | Son | — | Illinois |
| 79 | David, Jr. Williams | 16 | Son | — | Illinois |
| 80 | Raymond Williams | 13 | Son | — | Illinois |
| 81 | Robert Williams | 9 | Son | — | Illinois |
| 82 | Ralph Williams | 7 | Son | — | Illinois |
| 83 | Doris Williams | 5 | Daughter | — | Illinois |
| 84 | Marion Williams THIS PERSON | 2 | Daughter | — | Illinois |
| 85 | John A. Malley | 26 | Head | Crimper | Wisconsin |
| 86 | Margaret Malley | 34 | Wife-H | — | Pennsylvania |
| 87 | Mary Malley | 15 | Daughter | — | Pennsylvania |
| 88 | Helen Malley | 13 | Daughter | — | Pennsylvania |
| 89 | Annette Malley | 11 | Daughter | — | Pennsylvania |
| 90 | John Malley | 6 | Son | — | Illinois |
| 91 | Margaret Malley | 2 | Daughter | — | Illinois |
| 92 | Joseph Sauer | 50 | Head | Millwright | Austria-Vienna |
| 93 | Frank Luzzo | 30 | Head | Cutter | Italy |
| 94 | Martha Luzzo | 29 | Wife-H | — | Illinois |
| 95 | Catherine Luzzo | 9 | Daughter | — | Illinois |
| 96 | Lorraine Luzzo | 7 | Daughter | — | Illinois |
| 97 | Tillie Machowicz | 50 | Head-H | — | Illinois |
| 98 | Hazel Machowicz | 20 | Daughter | Folder | Illinois |
| 99 | Margaret Murphy | 73 | Head-H | — | Wisconsin |
| 100 | Laura Murphy | 36 | Daughter | Stenographer | Illinois |
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)