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Margaret Mcnamara — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Mcnamara across the 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1898), then head of a 8-person household.
Age 22
b. ~1898
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1898 |
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 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Alice Mcnamara | Daughter | — | 18 | ~1902 |
| John Mcnamara | Other | — | 2 | ~1918 |
| Mary Mcnamara | Daughter | — | 16 | ~1904 |
| Agnes Mcnamara | Daughter | — | 20 | ~1900 |
| Isabelle Maguire | Daughter | — | 21 | ~1899 |
| Margaret Mcnamara | Daughter | — | 22 | ~1898 |
| Anthony Maguire | Other | — | 27 | ~1893 |
| Ellen Mcnamara | Head | — | 52 | ~1868 |
Census Appearances
1910
Cook, Illinois
Daughter, age 13
Cook, Illinois · implied b. ~1897 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 22
Cook, Illinois · implied b. ~1898 — 8 household members
| Surname | McNamara |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 (1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Mcnamara
Daughter · 1920 · age 22 · b. ~1898 · Illinois
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Sibling
Isabelle Maguire
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mcnamara
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcnamara
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Mcnamara
Sibling · 1920 · age 20
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
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu350unit:0938)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mrs Brook Hardy | 34 | Wife | — | England |
| 2 | Catherine Hardy | 2 | Daughter | — | Illinois |
| 3 | Patrick T. Morris | 50 | Head | Trader | Ireland |
| 4 | Nellie Morris | 42 | Wife | — | Illinois |
| 5 | Ruth Murphy | 22 | Head | Stenographer | Illinois |
| 6 | Mary Murphy | 50 | Aunt | — | Illinois |
| 7 | Johanna Murphy | 76 | Aunt | — | Illinois |
| 8 | Edward Mclean | 41 | Head | Mail Carrier | Indiana |
| 9 | Anna Marie Mclean | 50 | Wife | — | Denmark |
| 10 | James P. Casey | 45 | Head | Student | Texas |
| 11 | Bertha Casey | 45 | Wife | — | Pennsylvania |
| 12 | Elizabeth Casey | 17 | Daughter | Stenographer | Texas |
| 13 | Kathleen Casey | 14 | Daughter | — | Colorado |
| 14 | Louis G. Markoefer | 49 | Head | Agent | Illinois |
| 15 | Mary M. Markoefer | 41 | Wife | — | Illinois |
| 16 | Edwin Markoefer | 19 | Son | Shop Driver | Illinois |
| 17 | Loretta Markoefer | 18 | Daughter | Bookkeeper | Illinois |
| 18 | Grace Markoefer | 14 | Daughter | — | Illinois |
| 19 | Anna Markoefer | 13 | Daughter | — | Illinois |
| 20 | Harold Markoefer | 12 | Son | — | Illinois |
| 21 | Mary Markoefer | 8 | Daughter | — | Illinois |
| 22 | Margaret Markoefer | 6 | Daughter | — | Illinois |
| 23 | Elna Jane Markoefer | 3 | Daughter | — | Illinois |
| 24 | Charles H. Caswell | 58 | Head | Special Agent | Wisconsin |
| 25 | Hattie A. Caswell | 50 | Wife | — | New York |
| 26 | Ruth F. Caswell | 27 | Daughter | — | Nebraska |
| 27 | Otto Meinfurt | 44 | Head | Manager | Bohemia |
| 28 | Mary Meinfurt | 35 | Wife | — | Ohio |
| 29 | William Meinfurt | 11 | Son | — | Illinois |
| 30 | Loretta Meinfurt | 9 | Daughter | — | Illinois |
| 31 | Edward Meinfurt | 4 | Son | — | Illinois |
| 32 | Charles Pau | 52 | Head | Mail Carrier | Germany |
| 33 | Annie Pau | 53 | Wife | — | Illinois |
| 34 | Walter Pau | 21 | Son | — | Illinois |
| 35 | Charles Enos | 28 | Boarder | Mechanic | Illinois |
| 36 | Ellen A. Mcnamara | 52 | Head | — | Ireland |
| 37 | Margaret Mcnamara THIS PERSON | 22 | Daughter | Teacher | Illinois |
| 38 | Agnes Mcnamara | 20 | Daughter | Stenographer | Illinois |
| 39 | Alice Mcnamara | 18 | Daughter | Clerk | Illinois |
| 40 | Mary Joan Mcnamara | 16 | Daughter | — | Illinois |
| 41 | John J. Mcnamara | 2 | Grandson | — | Illinois |
| 42 | Anthony J. Maguire | 27 | Son-in-law | Crane Man | Ireland |
| 43 | Isabelle Maguire | 21 | Daughter | — | Wisconsin |
| 44 | Bessie Maccracken | 40 | Head | — | Iowa |
| 45 | Donald Maccracken | 12 | Son | — | Pennsylvania |
| 46 | William Kimberlin | 53 | Head | Traveling Agent | Pennsylvania |
| 47 | Ella Kimberlin | 51 | Wife | — | Pennsylvania |
| 48 | Annie Bourne | 52 | Sister-in-law | — | Pennsylvania |
| 49 | Harry Bourne | 16 | Nephew | — | Pennsylvania |
| 50 | Charles Roop | 44 | Head | Superintendent | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)