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Margaret Mcnamara — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Mcnamara across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 7-person household.
Age 55
b. ~1875
Female
Head
Born: Illinois
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1875 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Edward Mcnamara | Son | — | 17 | ~1913 |
| Margaret Mcnamara | Daughter | — | 13 | ~1917 |
| Alice Mcnamara | Daughter | — | 8 | ~1922 |
| James Mcnamara | Son | — | 15 | ~1915 |
| Rose Mcnamara | Daughter | — | 12 | ~1918 |
| Margaret Mcnamara | Head | — | 55 | ~1875 |
| Irene Mcnamara | Daughter | — | 5 | ~1925 |
Census Appearances
1920
Cook, Illinois
Head, age 50
Cook, Illinois · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Industry | Law Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 55
Cook, Illinois · implied b. ~1875 — 7 household members
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| 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 Mcnamara across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
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This person
Anchor record
Margaret Mcnamara
Head · 1930 · age 55 · b. ~1875 · Illinois
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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:illinoiscensus00reel436:0453)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Samuel Smith | 57 | Head | Physician | Indiana |
| 52 | Mildred Smith | 37 | Wife | — | Illinois |
| 53 | Samuel Smith | 13 | Son | — | Illinois |
| 54 | David Smith | 5 | Son | — | Missouri |
| 55 | Margaret Mcnamara THIS PERSON | 55 | Head | — | Illinois |
| 56 | Edward Mcnamara | 17 | Son | — | Illinois |
| 57 | James Mcnamara | 15 | Son | — | Illinois |
| 58 | Margaret Mcnamara | 13 | Daughter | — | Illinois |
| 59 | Rose Mcnamara | 12 | Daughter | — | Illinois |
| 60 | Alice Mcnamara | 8 | Daughter | — | Illinois |
| 61 | Irene Mcnamara | 5 | Daughter | — | Illinois |
| 62 | Ignatz Barkauskas | 40 | Head | — | Lithuania |
| 63 | Annie Barkauskas | 40 | Wife | — | Lithuania |
| 64 | William Barkauskas | 16 | Son | — | Illinois |
| 65 | Annie Barkauskas | 14 | Daughter | — | Illinois |
| 66 | Louis Wunse | 42 | Head | Laborer | Lithuania |
| 67 | Annie Wunse | 36 | Wife | — | Lithuania |
| 68 | Frank Wunse | 15 | Son | — | Illinois |
| 69 | John Wunse | 10 | Son | — | Illinois |
| 70 | Helen Wunse | 8 | Daughter | — | Illinois |
| 71 | James Sexton | 51 | Head | Driver | Illinois |
| 72 | Rose Sexton | 47 | Wife | — | Illinois |
| 73 | Alice Sexton | 21 | Daughter | — | Illinois |
| 74 | James Sexton | 18 | Son | — | Illinois |
| 75 | Anna Sulkman | 51 | Head | — | Illinois |
| 76 | Anna Sulkman | 25 | Wife | — | Illinois |
| 77 | Robert Sulkman | 20 | Son | — | Illinois |
| 78 | William O'Brien | 37 | Head | Policeman | England |
| 79 | Wanda O'Brien | 29 | Wife | — | Nebraska |
| 80 | Martha O'Brien | 9 | Daughter | — | New York |
| 81 | Olga O'Brien | 6 | Daughter | — | Illinois |
| 82 | Peter Zuss | 37 | Head | — | Illinois |
| 83 | Josephine Zuss | 30 | Wife | — | Illinois |
| 84 | Samuel Kozlowski | 40 | Head | Baker | Russia |
| 85 | Helen Kozlowski | 34 | Wife | — | Illinois |
| 86 | Simon Kozlowski | 14 | Son | — | Illinois |
| 87 | Madeline Kozlowski | 11 | Daughter | — | Illinois |
| 88 | Edward Kozlowski | 6 | Son | — | Illinois |
| 89 | Marie Kozlowski | 1 | Daughter | — | Illinois |
| 90 | Joseph Szakacs | 42 | Head | — | Hungary |
| 91 | Anna Szakacs | 37 | Wife | — | Hungary |
| 92 | Frank Szakacs | 9 | Son | — | Illinois |
| 93 | Henry Schroeder | 41 | Head | Clerk | Illinois |
| 94 | Emily Schroeder | 41 | Wife | — | Illinois |
| 95 | Emily Schroeder | 11 | Step-daughter | — | Illinois |
| 96 | Henry Schroeder | 1 | Son | — | Illinois |
| 97 | Charles Newman | 34 | Brother | — | Illinois |
| 98 | Raymond Newman | 32 | Brother | — | Illinois |
| 99 | Florence Newman | 15 | Daughter | — | Illinois |
| 100 | Samuel Heisman | 42 | Head | Agent | 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)