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John Mcnamara — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this John Mcnamara across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1849), then head of a 5-person household.
Age 71
b. ~1849
Male
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1872 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1880 |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1849 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alice Mcnamara | Daughter | — | 44 | ~1876 |
| John Mcnamara | Head | — | 71 | ~1849 |
| Edward Mcelroy | Other | — | 22 | ~1898 |
| Elmer Jackson | Other | — | 30 | ~1890 |
| John Mcnamara | Son | — | 37 | ~1883 |
Census Appearances
1900
Cook, Illinois
Head, age 52
Cook, Illinois · implied b. ~1848 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Nov |
| Birth Year | 1848 |
| Year of Immigration | 1870 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer Shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Cook, Illinois
Head, age 60
Cook, Illinois · implied b. ~1850 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 35 |
| Year of Immigration | 1871 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Package Handler |
| Industry | City |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Cook, Illinois
Head, age 71
Cook, Illinois · implied b. ~1849 — 5 household members
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1872 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1880 |
| Birthplace (normalized) | ireland |
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 John Mcnamara across 3 US Census years (1900, 1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
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This person
Anchor record
John Mcnamara
Head · 1920 · age 71 · b. ~1849 · Illinois
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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:1920:14thcensusofpopu339unit:0946)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adolph Berg | 36 | Head | Cutter | Illinois |
| 2 | Josephine Berg | 42 | Sister | Clothing Insp | Sweden |
| 3 | Emma Berg | 44 | Sister | Clothing Insp | Sweden |
| 4 | Luke E. Smith | 40 | Head | Printer | S. Dakota |
| 5 | Frances B. Smith | 45 | Wife | — | Illinois |
| 6 | Robert E. Nichol | 34 | Head | Carpenter | Canada |
| 7 | Emma L. Nichol | 33 | Wife | — | Illinois |
| 8 | Isador Armstrong | 75 | Boarder | Assembler | Michigan |
| 9 | William Nichol | 30 | Brother | Elevator Constructor | Canada |
| 10 | Tony Seymour | 32 | Head | Laborer | Hungary |
| 11 | Mary Seymour | 25 | Wife | — | Hungary |
| 12 | Mary Seymour | 12 | Daughter | — | Illinois |
| 13 | Clarke Washburne | 38 | Head | Office Clerk | Illinois |
| 14 | May C. Washburne | 36 | Wife | Bookkeeper | Illinois |
| 15 | Gillette Washburne | 9 | Daughter | — | Illinois |
| 16 | Leon C. Washburne | 8 | Son | — | Illinois |
| 17 | Alice C. Washburne | 5 | Daughter | — | Illinois |
| 18 | Jane Cormee | 28 | Boarder | — | Ireland |
| 19 | Lynn R. Brudon | 22 | Head | Metal Polisher | Illinois |
| 20 | Gertrude Brudon | 24 | Wife | Teacher | Illinois |
| 21 | Alfred J. Mulvihill | 24 | Head | Lawyer | Massachusetts |
| 22 | Mary L. Mulvihill | 25 | Wife | — | Massachusetts |
| 23 | Lois E. Mulvihill | 1 | Daughter | — | Georgia |
| 24 | Mary J. Mcmahon | 60 | Mother-in-law | — | Massachusetts |
| 25 | Ag. Yates Preston | 28 | Head | Office Clerk | Illinois |
| 26 | Leyla Preston | 24 | Wife | — | Canada |
| 27 | Joseph Freeman | 32 | Head | Designer | Lithuania |
| 28 | Rose Freeman | 25 | Wife | — | Poland |
| 29 | Leonard Freeman | 3 | Son | — | Illinois |
| 30 | Beatrice Freeman | 2 | Daughter | — | Illinois |
| 31 | Alex Gross | 23 | Brother-in-law | Chauffer | Poland |
| 32 | John Evans | 65 | Head | Cabinet Maker | Canada |
| 33 | Mary L. Evans | 61 | Wife | — | Canada |
| 34 | Peter T. Nelson | 60 | Boarder | — | Denmark |
| 35 | Lena Nelson | 56 | Boarder | Machine Hand | Denmark |
| 36 | Miles Cunningham | 46 | Boarder | Printer | New Jersey |
| 37 | Otto L. Ensch | 46 | Head | Pressman | Illinois |
| 38 | Margaret Ensch | 44 | Wife | — | Illinois |
| 39 | Harold H. Ensch | 14 | Son | — | Illinois |
| 40 | Leslie C. Yager | 41 | Head | Teamster | Kentucky |
| 41 | Mila Yager | 38 | Wife | — | Wisconsin |
| 42 | Martha H. Yager | 17 | Daughter | Typist | Illinois |
| 43 | Joel L. Yager | 13 | Son | — | Illinois |
| 44 | John Mcnamara THIS PERSON | 71 | Head | — | Ireland |
| 45 | Alice Mcnamara | 44 | Daughter | — | Illinois |
| 46 | John J. Mcnamara | 37 | Son | Policeman | Illinois |
| 47 | Edward J. Mcelroy | 22 | Boarder | Bookkeeper | Illinois |
| 48 | Elmer E. Jackson | 30 | Boarder | Salesman | Illinois |
| 49 | Charles Jennings | 59 | Head | Agent | Illinois |
| 50 | Alice Jennings | 57 | Wife | — | 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)