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Margaret Leonard — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Leonard across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1912), then head of a 8-person household.
Age 18
b. ~1912
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Operator |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1912 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Mary Leonard | Head | — | 40 | ~1890 |
| Mary Leonard | Daughter | — | 20 | ~1910 |
| Betty Leonard | Daughter | — | 9 | ~1921 |
| Eileen Leonard | Daughter | — | 11 | ~1919 |
| Margaret Leonard | Daughter | — | 18 | ~1912 |
| John Leonard | Son | — | 13 | ~1917 |
| Catherine Leonard | Daughter | — | 14 | ~1916 |
| Nora Leonard | Daughter | — | 18 | ~1912 |
Census Appearances
1920
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 18
Cook, Illinois · implied b. ~1912 — 8 household members
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Operator |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Margaret Leonard across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Leonard
Daughter · 1930 · age 18 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Catherine Leonard
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Leonard
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Leonard
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Leonard
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nora Leonard
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Leonard
Sibling · 1930 · age 11
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:illinoiscensus00reel460:0806)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose | 26 | daughter | Stenographer | Illinois |
| 2 | Ross Matilda | 6 | daughter | None | Illinois |
| 3 | Benjamin Garfinkle | 56 | Head | Carpenter | Russia |
| 4 | Rose Garfinkle | 55 | Wife | None | Russia |
| 5 | Ida Garfinkle | 19 | daughter | Stenographer | Illinois |
| 6 | Eva Garfinkle | 17 | daughter | Stenographer | Illinois |
| 7 | Mary Leonard | 40 | Head | None | Ireland |
| 8 | Mary Leonard | 20 | daughter | Stenographer | Illinois |
| 9 | Nora Leonard | 18 | daughter | Office Clerk | Illinois |
| 10 | Margaret Leonard THIS PERSON | 18 | daughter | Operator | Illinois |
| 11 | Catherine Leonard | 14 | daughter | None | Illinois |
| 12 | John Leonard | 13 | son | None | Illinois |
| 13 | Eileen Leonard | 11 | daughter | None | Illinois |
| 14 | Betty Leonard | 9 | daughter | None | Illinois |
| 15 | Hyman Finkel | 52 | Head | Carpenter | Russia |
| 16 | Celia Finkel | 52 | Wife | None | Russia |
| 17 | Mollie Finkel | 22 | daughter | Stenographer | Massachusetts |
| 18 | Nathan Finkel | 21 | son | Bookkeeper | Massachusetts |
| 19 | Sol Finkel | 18 | son | None | Massachusetts |
| 20 | Gertrude Schotman | 75 | Main Law | None | Russia |
| 21 | Josephine Hickey | 58 | Head | Nurse | Vermont |
| 22 | Margaret Hickey | 35 | daughter | None | Illinois |
| 23 | Alice Hickey | 36 | daughter | Operator | Illinois |
| 24 | William Hickey | 26 | son | Salesman | Colorado |
| 25 | Harry Chason | 40 | Head | Salesman | Lithuania |
| 26 | Mary Chason | 38 | Wife | None | Russia |
| 27 | Florence Chason | 15 | daughter | None | Illinois |
| 28 | Eleanor Chason | 11 | daughter | None | Illinois |
| 29 | Isadore Chason | 4 | son | None | Illinois |
| 30 | Sam Curtis | 45 | Head | Cooper | Ohio |
| 31 | Sarah Curtis | 42 | Wife | None | Ohio |
| 32 | Beatrice Curtis | 23 | daughter | Time Keeper | Illinois |
| 33 | Richard Mcclung | 27 | Son in Law | Driver | Alabama |
| 34 | Marcella Mcclung | 25 | daughter | Office Clerk | New York |
| 35 | Richard Mcclung | 1 | Grandson | None | Illinois |
| 36 | Rubin Becker | 36 | Head | Buyer | Russia |
| 37 | Gertrude Becker | 35 | Wife | None | Illinois |
| 38 | Josephine Becker | 11 | daughter | None | Illinois |
| 39 | Rochelle Becker | 3 | daughter | None | Illinois |
| 40 | Bessie Bell | 65 | Main Law | None | Russia |
| 41 | Joseph Cerkel | 40 | Head | Tailor | Russia |
| 42 | Rebecca Cerkel | 40 | Wife | None | Russia |
| 43 | Lillian Cerkel | 21 | daughter | Stenographer | Russia |
| 44 | Jack Cerkel | 18 | son | None | Russia |
| 45 | Minnie Cerkel | 10 | daughter | None | Illinois |
| 46 | Harry Hoffman | 37 | Head | Carpenter | Russia |
| 47 | Dora Hoffman | 38 | Wife | None | Russia |
| 48 | Bernice Hoffman | 16 | daughter | None | France |
| 49 | Alvin Hoffman | 14 | son | None | Illinois |
| 50 | Bernard Hoffman | 7 | son | None | 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)