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Margaret Mcdonald — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Mcdonald across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1904), then head of a 11-person household.
Age 26
b. ~1904
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McDonald |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1904 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcdonald | Daughter | — | 21 | ~1909 |
| Margaret Mcdonald | Daughter | — | 26 | ~1904 |
| Mary Mcdonald | Head | — | 57 | ~1873 |
| Edwin Isabel | Other | — | 33 | ~1897 |
| Leo Mulcahy | Other | — | 34 | ~1896 |
| Bernard Swanson | Other | — | 34 | ~1896 |
| Joseph Donovan | Other | — | 53 | ~1877 |
| James Mcdonald | Son | — | 23 | ~1907 |
| Joseph Mcdonald | Son | — | 17 | ~1913 |
| Thomas Mcdonald | Son | — | 19 | ~1911 |
| Edward Mcdonald | Son | — | 24 | ~1906 |
Census Appearances
1920
Cook, Illinois
Daughter, age 16
Cook, Illinois · implied b. ~1904 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 26
Cook, Illinois · implied b. ~1904 — 11 household members
| Surname | McDonald |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| 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 Mcdonald across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Mcdonald
Daughter · 1930 · age 26 · b. ~1904 · Illinois
★ You are viewing this record
Sibling
Thomas Mcdonald
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcdonald
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcdonald
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdonald
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcdonald
Sibling · 1930 · age 21
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:illinoiscensus00reel430:0898)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Speros Muselis | 29 | Head | Merchant | Greece |
| 52 | Toula Muselis | 26 | Wife-H | — | Greece |
| 53 | Angelo Muselis | 3 | Son | — | Illinois |
| 54 | James Muselis | 32 | Brother | Salesman | Greece |
| 55 | Philip J. George | 32 | Head | Carpenter | Illinois |
| 56 | Elizabeth George | 35 | Wife-H | — | Illinois |
| 57 | Chandler George | 9 | Son | — | Illinois |
| 58 | Lois George | 7 | Daughter | — | Illinois |
| 59 | Jackie George | 6 | Son | — | Illinois |
| 60 | Ritchard George | 4 | Son | — | Illinois |
| 61 | Betty Jane George | 1 | Daughter | — | Illinois |
| 62 | Lucian Durbie | 25 | Lodger | Roller Operator | Illinois |
| 63 | Rose Martinelli | 18 | Lodger | Assembling | Colorado |
| 64 | Mary E. Mcdonald | 57 | Head | — | Illinois |
| 65 | Margaret M. Mcdonald THIS PERSON | 26 | Daughter | — | Illinois |
| 66 | Edward J. Mcdonald | 24 | Son | — | Illinois |
| 67 | James G. Mcdonald | 23 | Son | Assembler | Illinois |
| 68 | Mary C. Mcdonald | 21 | Daughter | — | Illinois |
| 69 | Thomas H. Mcdonald | 19 | Son | Painter | Illinois |
| 70 | Joseph J. Mcdonald | 17 | Son | — | Illinois |
| 71 | Leo Mulcahy | 34 | Lodger | Mechanic | Missouri |
| 72 | Bernard Swanson | 34 | Lodger | Carpenter | Sweden |
| 73 | Joseph W. Donovan | 53 | Lodger | Salesman | Illinois |
| 74 | Edwin A. Isabel | 33 | Lodger | Accountant | Illinois |
| 75 | Thomas Morgan | 49 | Head | Labourer | Irish Free State |
| 76 | Bridget Morgan | 57 | Wife-H | — | Irish Free State |
| 77 | Thomas M. Jr. Morgan | 23 | Son | Mail Handler | England |
| 78 | Joseph A. Morgan | 21 | Son | Office Clerk | Missouri |
| 79 | Agnes C. Rogers | 11 | Lodger | — | Illinois |
| 80 | John E. Rogers | 9 | Lodger | — | Illinois |
| 81 | Michael J. Tookey | 47 | Head | Assembler | Illinois |
| 82 | Mary A. Tookey | 35 | Wife-H | — | Missouri |
| 83 | Marion L. Tookey | 16 | Daughter | — | Illinois |
| 84 | Rita Jane Tookey | 14 | Daughter | — | Illinois |
| 85 | William E. Tookey | 11 | Son | — | Illinois |
| 86 | James J. Tookey | 10 | Son | — | Illinois |
| 87 | Jacob C. Pfeiffel | 60 | Head | Machinist | Germany |
| 88 | Emilie Pfeiffel | 57 | Wife-H | — | Germany |
| 89 | Elizabeth Pfeiffel | 32 | Daughter | Stenographer | Ohio |
| 90 | Theodore Schroeder | 88 | Head | — | Germany |
| 91 | Mary Schroeder | 77 | Wife-H | — | Germany |
| 92 | Geraldine M. Schroeder | 23 | Grand Child | Draftsman | Illinois |
| 93 | Mary Teubity | 16 | Grand Child | — | Michigan |
| 94 | William C. Caley | 36 | Head | Retail Dealer | Illinois |
| 95 | Lillian J. Caley | 38 | Wife-H | — | Illinois |
| 96 | Dorothy L. Caley | 7 | Daughter | — | Illinois |
| 97 | Robert W. Caley | 5 | Son | — | Illinois |
| 98 | John A. Ballay | 49 | Head | Iron Moulder | Michigan |
| 99 | Kathryn Ballay | 51 | Wife-H | — | Illinois |
| 100 | John Burns | 14 | Lodger | — | 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)