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John Maher — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Maher across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 6-person household.
Age 53
b. ~1877
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Maher |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Building Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7300 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1877 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Maher | Head | — | 53 | ~1877 |
| Elizabeth Maher | Spouse | — | 50 | ~1880 |
| Eileen Maher | Daughter | — | 19 | ~1911 |
| Madeline Maher | Daughter | — | 15 | ~1915 |
| John Maher | Son | — | 11 | ~1919 |
| Katharine Maher | Daughter | — | 17 | ~1913 |
Census Appearances
1920
Cook, Illinois
Head, age 39
Cook, Illinois · implied b. ~1881 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maher |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Painter |
| Industry | car shops |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Head, age 53
Cook, Illinois · implied b. ~1877 — 6 household members
| Surname | Maher |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Building Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7300 |
| Radio Set | R |
| Birth Country | Ireland |
| 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 Maher across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
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This person
Anchor record
John Maher
Head · 1930 · age 53 · b. ~1877 · 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:illinoiscensus00reel470:0248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Maher THIS PERSON | 53 | Head | Laborer | Ireland |
| 2 | Elizabeth Maher | 50 | Wife | — | Ireland |
| 3 | Eileen Maher | 19 | Daughter | — | Illinois |
| 4 | Katharine Maher | 17 | Daughter | Stenographer | Illinois |
| 5 | Madeline Maher | 15 | Daughter | — | Illinois |
| 6 | John F. Maher | 11 | Son | — | Illinois |
| 7 | James E. Curley | 45 | Head | Police Officer | Indiana |
| 8 | Jennie W. Curley | 32 | Wife | — | Illinois |
| 9 | Joseph Gorick | 61 | Head | Watchman | Austria |
| 10 | Elizabeth Gorick | 58 | Wife | — | Austria |
| 11 | Joseph Jr. Gorick | 22 | Son | Cabinet Maker | Illinois |
| 12 | Margaret Gorick | 22 | Daughter-in-law | Secretary | Illinois |
| 13 | George Straka | 46 | Head | Truckman | Slovakia |
| 14 | Susan Straka | 44 | Wife | — | Slovakia |
| 15 | Otto Sonnenberg | 51 | Head | Foreman | Germany |
| 16 | Emma Sonnenberg | 48 | Wife | — | Illinois |
| 17 | Chas. G. Langmayer | 57 | Head | Printer | Missouri |
| 18 | Susan Langmayer | 57 | Wife | — | Illinois |
| 19 | Eloise Langmayer | 27 | Head | Shipping Dept | Illinois |
| 20 | Vivian Langmayer | 26 | Wife | Operator | Illinois |
| 21 | William Phillips | 9 | Step-son | — | Illinois |
| 22 | Richard Smelton | 43 | Head | Tool Maker | Germany |
| 23 | Fay Smelton | 43 | Wife | — | Illinois |
| 24 | Richard Smelton | 14 | Son | — | Illinois |
| 25 | John Smelton | 7 | Son | — | Illinois |
| 26 | Albert Merker | 35 | Head | Police Officer | Illinois |
| 27 | Anna Merker | 31 | Wife | — | Minnesota |
| 28 | Fred Merker | 6 | Son | — | Illinois |
| 29 | Audrey Merker | 4 | Daughter | — | Illinois |
| 30 | Evelyn Merker | 2 | Daughter | — | Illinois |
| 31 | Lois Merker | 0 | Daughter | — | Illinois |
| 32 | Emma Krumppel | 24 | Sister-in-law | Drill Press | Minnesota |
| 33 | William Allison | 50 | Head | Gardener | Missouri |
| 34 | Catharine Allison | 49 | Wife | — | Kentucky |
| 35 | James Allison | 21 | Son | — | Illinois |
| 36 | Andrew Warnke | 44 | Head | Repairman | Illinois |
| 37 | Grace Warnke | 46 | Wife | — | Ohio |
| 38 | Leona Warnke | 21 | Daughter | — | Illinois |
| 39 | Vera Hall | 15 | Step-Daughter | — | Illinois |
| 40 | Richard Hall | 17 | Step-Son | — | Illinois |
| 41 | William Nolan | 25 | Head | Draftsman | Illinois |
| 42 | Mary Nolan | 26 | Wife | — | New York |
| 43 | Nolan | 0 | Daughter | — | Illinois |
| 44 | Louis Schwartz | 47 | Head | Cutter | Hungary |
| 45 | Caroline Schwartz | 30 | Wife | — | Hungary |
| 46 | William Schwartz | 6 | Son | — | Illinois |
| 47 | Theodore Schwartz | 5 | Son | — | Illinois |
| 48 | Alice Schwartz | 3 | Daughter | — | Illinois |
| 49 | Mike Weiss | 32 | Brother-in-law | Cabinet Maker | Hungary |
| 50 | Rose Weiss | 26 | Sister-in-law | — | Hungary |
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)