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Margaret Armstrong — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Armstrong across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 9-person household.
Age 17
b. ~1913
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Armstrong |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Village Of River Forest |
| 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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Frederick Armstrong | Son | — | 22 | ~1908 |
| Dorothy Armstrong | Daughter | — | 15 | ~1915 |
| William Armstrong | Son | — | 20 | ~1910 |
| Frederick Armstrong | Head | — | 48 | ~1882 |
| Adelaide Armstrong | Spouse | — | 47 | ~1883 |
| James Armstrong | Son | — | 14 | ~1916 |
| John Armstrong | Son | — | 18 | ~1912 |
| Margaret Armstrong | Daughter | — | 17 | ~1913 |
| Frederick Armstrong | Son | — | 22 | ~1908 |
Census Appearances
1920
Cook, Illinois
Daughter, age 6
Cook, Illinois · implied b. ~1914 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 17
Cook, Illinois · implied b. ~1913 — 9 household members
| Surname | Armstrong |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| 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 Armstrong across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Armstrong
Daughter · 1930 · age 17 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
William Armstrong
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Armstrong
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Armstrong
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Armstrong
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Armstrong
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Armstrong
Sibling · 1930 · age 22
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
44 people indexed on this census page (ia:1930:illinoiscensus00reel508:0164)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John S. Iii West | 12 | Son | — | Ohio |
| 52 | Gregory S. West | 15 | Son | — | Ohio |
| 53 | Martha Jackson | 23 | Servant | Servant | Ohio |
| 54 | S. Sherwood Gregory | 29 | Head | Salesman | Wisconsin |
| 55 | Mona S. Gregory | 27 | Wife | — | Wisconsin |
| 56 | Mona S. Gregory | 3 | Daughter | — | Wisconsin |
| 57 | S. Sherwood Jr. Gregory | 1 | Son | — | Wisconsin |
| 58 | Sarah Gregory | 19 | Servant | Servant | Illinois |
| 59 | Herald H. Munn | 27 | Head | Clerk | Missouri |
| 60 | Lucille Munn | 26 | Wife | — | Illinois |
| 61 | Roderick M. Munn | 3 | Son | — | Illinois |
| 62 | Nadine Munn | 3 | Daughter | — | Illinois |
| 63 | Anna Munn | 62 | Mother | — | Missouri |
| 64 | Edwin S. Munn | 29 | Son | Buyer | Missouri |
| 65 | Frederick Armstrong | 48 | Head | Salesman | Ohio |
| 66 | Adelaide Armstrong | 47 | Wife | — | Ohio |
| 67 | Frederick Armstrong | 22 | Son | Time Keeper | Ohio |
| 68 | Frederick Armstrong | 22 | Son | — | Ohio |
| 69 | William Armstrong | 20 | Son | — | Ohio |
| 70 | John Armstrong | 18 | Son | Stenographer | Illinois |
| 71 | Margaret Armstrong THIS PERSON | 17 | Daughter | — | Illinois |
| 72 | Dorothy Armstrong | 15 | Daughter | — | Illinois |
| 73 | James Armstrong | 14 | Son | — | Illinois |
| 74 | William Hardy | 71 | Head | Wood Worker | New York |
| 75 | Matilda M. Hardy | 61 | Wife | — | Michigan |
| 76 | Ray W. Hardy | 23 | Son | Filling Station | Illinois |
| 77 | Marie Hardy | 22 | Daughter | — | Illinois |
| 78 | William Hardy | 12 | Son | — | Illinois |
| 79 | Frederick Grover | 48 | Head | Salesman | Illinois |
| 80 | Nellie Grover | 44 | Wife | — | Iowa |
| 81 | Dorothy L. Grover | 19 | Daughter | — | Illinois |
| 82 | Frederick Grover | 14 | Son | — | Illinois |
| 83 | Mary Grover | 23 | Wife | — | Illinois |
| 84 | Robert N. Erskine | 45 | Head | Lawyer | Illinois |
| 85 | Lena Erskine | 41 | Wife | — | Illinois |
| 86 | Robert N. Jr. Erskine | 14 | Son | — | Illinois |
| 87 | John E. Erskine | 11 | Son | — | Illinois |
| 88 | Richard L. Erskine | 9 | Son | — | Illinois |
| 89 | Edward C. Erskine | 5 | Son | — | Illinois |
| 90 | Myrtle Emily | 17 | Servant | Servant | Irish Free State |
| 91 | Terrence J. Cooper | 71 | Head | Retired | New York |
| 92 | Gertrude Cooper | 66 | Wife | — | Illinois |
| 93 | Howard M. Cooper | 31 | Son | Clerk | Illinois |
| 94 | Mary Reed | 24 | Daughter | — | Illinois |
Related Census Records
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)