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Margaret Farrell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Farrell across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Farrell |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1913 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Jeanette Farrell | Daughter | — | 21 | ~1909 |
| Theresa Farrell | Daughter | — | 19 | ~1911 |
| James Farrell | Head | — | 56 | ~1874 |
| Theresa Farrell | Other | — | 50 | ~1880 |
| Margaret Farrell | Daughter | — | 17 | ~1913 |
| Francis Farrell | Son | — | 18 | ~1912 |
| Mildred Farrell | Daughter | — | 13 | ~1917 |
| Bertrand Farrell | Son | — | 9 | ~1921 |
| John Farrell | Son | — | 23 | ~1907 |
| Joseph Farrell | Son | — | 15 | ~1915 |
Census Appearances
1920
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farrell |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 17
Cook, Illinois · implied b. ~1913 — 10 household members
| Surname | Farrell |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| 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 Farrell across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Farrell
Daughter · 1930 · age 17 · b. ~1913 · Illinois
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Sibling
Mildred Farrell
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Farrell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Farrell
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertrand Farrell
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Farrell
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Farrell
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Farrell
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:illinoiscensus00reel429:0037)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grover Detert | 36 | Head | Manager | Illinois |
| 2 | Ella Detert | 35 | Wife-H | None | Illinois |
| 3 | Raymond Detert | 10 | Son | None | Illinois |
| 4 | James Cummings | 58 | Head | Cattle Buyer | Illinois |
| 5 | Julia H. Cummings | 57 | Wife-H | None | Illinois |
| 6 | Ralph E. Desmond | 36 | Head | Contractor | Illinois |
| 7 | Evelyn Desmond | 32 | Wife-H | None | Illinois |
| 8 | Evelyn P. Desmond | 7 | Daughter | None | Illinois |
| 9 | Arthur D. Desmond | 5 | Son | None | Illinois |
| 10 | Alice D. Desmond | 3 | Daughter | None | Illinois |
| 11 | Addie Tutton | 38 | Maid | Maid | Kentucky |
| 12 | Walter Mcdonough | 34 | Head | Osteopath | Wisconsin |
| 13 | Marie Mcdonough | 32 | Wife-H | None | Illinois |
| 14 | Patricia Mcdonough | 5 | Daughter | None | Illinois |
| 15 | Joan Mcdonough | 3 | Daughter | None | Illinois |
| 16 | Gwendolyn Mcdonough | 1 | Daughter | None | Illinois |
| 17 | Dan R. Swanson | 37 | Head | Sales Manager | Illinois |
| 18 | Rose Swanson | 29 | Wife-H | None | Illinois |
| 19 | Dan R. Jr. Swanson | 2 | Son | None | Illinois |
| 20 | Annie Swanson | 67 | Mother | None | Sweden |
| 21 | George Brumley | 47 | Head | Reporter | Illinois |
| 22 | Alma Brumley | 43 | Wife-H | None | Illinois |
| 23 | Nancy Brumley | 7 | Daughter | Clerical | Illinois |
| 24 | Shirley Brumley | 5 | Daughter | None | Illinois |
| 25 | Eric Bostrom | 40 | Head | Carpenter | Sweden |
| 26 | Nancy Bostrom | 43 | Wife-H | None | Sweden |
| 27 | Jacob Bertemes | 51 | Head | Salesman | Illinois |
| 28 | Marie Bertemes | 45 | Wife-H | None | Illinois |
| 29 | Phyllis Bertemes | 21 | Daughter | Asst. Chemist | Illinois |
| 30 | James Farrell | 56 | Head | Lieutenant | Illinois |
| 31 | Theresa Farrell | 50 | Wife-H | None | Illinois |
| 32 | John Farrell | 23 | Son | Electrician | Illinois |
| 33 | Jeanette Farrell | 21 | Daughter | None | Illinois |
| 34 | Theresa Farrell | 19 | Daughter | Secretary | Illinois |
| 35 | Francis Farrell | 18 | Son | Clerical | Illinois |
| 36 | Margaret Farrell THIS PERSON | 17 | Daughter | None | Illinois |
| 37 | Joseph Farrell | 15 | Son | None | Illinois |
| 38 | Mildred Farrell | 13 | Daughter | None | Illinois |
| 39 | Bertrand Farrell | 9 | Son | None | Illinois |
| 40 | Matt Newport | 56 | Head | Painter | Illinois |
| 41 | Mary Newport | 46 | Wife-H | None | Illinois |
| 42 | Janet Newport | 20 | Daughter | Clerical | Illinois |
| 43 | Raymond Newport | 18 | Son | Ice Maker | Illinois |
| 44 | Bert C. Wallis | 53 | Head | Mechanic | Michigan |
| 45 | Emma H. Wallis | 48 | Wife-H | None | Ohio |
| 46 | Billy A. Wallis | 8 | Son | None | Illinois |
| 47 | Tenske Eliza Wallis | 54 | Housekeeper | Housework | Germany |
| 48 | Ernest Mieroch | 57 | Head | Engineer | Germany |
| 49 | Sarah Mieroch | 56 | Wife-H | None | England |
| 50 | Helen Mieroch | 34 | Daughter | Machinist | Sweden |
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)