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John Mcnamara — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Will, Illinois
Our Model Tree links this John Mcnamara across the 1920 and 1930 US Censuses in Will, Illinois (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 11-person household.
Age 52
b. ~1878
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Will, Illinois |
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Additional Details | |
| Occupation | Switchman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Switchman |
| Township / Ward | City Of Joliet |
| Est. Birth Year | ~1878 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mcnamara | Daughter | — | 23 | ~1907 |
| Lucille Mcnamara | Daughter | — | 16 | ~1914 |
| Anna Mcnamara | Daughter | — | 11 | ~1919 |
| Gertrude Mcnamara | Daughter | — | 20 | ~1910 |
| Jeanette Mcnamara | Daughter | — | 18 | ~1912 |
| Phyllis Mcnamara | Daughter | — | 14 | ~1916 |
| John Mcnamara | Head | — | 52 | ~1878 |
| Thomas Mcnamara | Other | — | 72 | ~1858 |
| Thomas Mcnamara | Son | — | 6 | ~1924 |
| William Mcnamara | Son | — | 8 | ~1922 |
| Margaret Mcnamara | Spouse | — | 46 | ~1884 |
Census Appearances
1920
Will, Illinois
Head, age 42
Will, Illinois · implied b. ~1878 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Switchman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Head, age 52
Will, Illinois · implied b. ~1878 — 11 household members
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Switchman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| 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 John Mcnamara across 2 US Census years (1920 and 1930) in Will, Illinois, using XGBoost record linkage.
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This person
Anchor record
John Mcnamara
Head · 1930 · age 52 · b. ~1878 · 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 — Will, Illinois
Open full size
1930 US Federal Census — Will, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel568:0154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter H. Johnston | 65 | head | Painter | Illinois |
| 2 | Wilda Johnston | 67 | wife | — | Illinois |
| 3 | Wilda Johnston | 27 | daughter | Clerk | Illinois |
| 4 | Bernice Johnston | 20 | daughter | — | Illinois |
| 5 | Arthur Kautz | 47 | head | Painter | Illinois |
| 6 | Frankie Kautz | 43 | wife | — | Maryland |
| 7 | Frank Kautz | 19 | son | Clerk | Illinois |
| 8 | Harry Kautz | 15 | son | — | Illinois |
| 9 | Shirley Kautz | 12 | daughter | — | Illinois |
| 10 | Jack Kautz | 8 | son | — | Illinois |
| 11 | Walter Kautz | 6 | son | — | Illinois |
| 12 | Frank Cochran | 50 | boarder | — | Missouri |
| 13 | Edward Patterson | 37 | head | Merchant | Illinois |
| 14 | Lily Patterson | 37 | wife | — | Kansas |
| 15 | Catherine Patterson | 12 | daughter | — | Illinois |
| 16 | Alice Patterson | 10 | daughter | — | Illinois |
| 17 | Jane Patterson | 8 | daughter | — | Illinois |
| 18 | Alfred Broad | 38 | head | Agent | Illinois |
| 19 | Elizabeth Broad | 37 | wife | — | Illinois |
| 20 | Adeline Broad | 12 | daughter | — | Illinois |
| 21 | John Mcnamara THIS PERSON | 52 | head | Switchman | Illinois |
| 22 | Margaret Mcnamara | 46 | wife | — | Illinois |
| 23 | Margaret Mcnamara | 23 | daughter | Operator | Illinois |
| 24 | Gertrude Mcnamara | 20 | daughter | Stenographer | Illinois |
| 25 | Jeanette Mcnamara | 18 | daughter | — | Illinois |
| 26 | Lucille Mcnamara | 16 | daughter | — | Illinois |
| 27 | Phyllis Mcnamara | 14 | daughter | — | Illinois |
| 28 | Anna Mcnamara | 11 | daughter | — | Illinois |
| 29 | William Mcnamara | 8 | son | — | Illinois |
| 30 | Thomas Mcnamara | 6 | son | — | Illinois |
| 31 | Thomas Mcnamara | 72 | father | — | New York |
| 32 | Daisy O'Brien | 55 | head | — | Illinois |
| 33 | Harry Garing | 25 | head | Carpenter | Illinois |
| 34 | Pearl Garing | 24 | wife | — | Illinois |
| 35 | Harry Jr. Garing | 5 | son | — | Illinois |
| 36 | Deville Garing | 2 | son | — | Illinois |
| 37 | John Mader | 54 | head | — | Illinois |
| 38 | Clara Mader | 54 | wife | — | Illinois |
| 39 | Joseph W. Brooker | 45 | head | Stenographer | Missouri |
| 40 | Catherine Brooker | 45 | wife | Teacher | Illinois |
| 41 | William Brooker | 13 | son | — | Illinois |
| 42 | Anna Bennett | 67 | mother-in-law | — | Ireland |
| 43 | John Peterson | 62 | head | Engineer | Canada |
| 44 | John Peterson | 60 | wife | — | Illinois |
| 45 | John Smalley | 40 | head | Electrician | Illinois |
| 46 | Bertha Smalley | 18 | daughter | — | Illinois |
| 47 | Rachel M. Slick | 56 | head | — | Pennsylvania |
| 48 | Joseph Slick | 30 | son | Clerk | Illinois |
| 49 | Anna Slick | 26 | daughter | Operator | Illinois |
| 50 | Ellen O'Brien | 52 | head | — | New York |
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)