JG
John Grady — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Grady across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 11-person household.
Age 44
b. ~1886
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Grady |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | New York |
| Additional Details | |
| Occupation | Roofer |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 32 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Roofer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1886 |
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 |
|---|---|---|---|---|
| Urban Philips | Son | — | 4 | ~1926 |
| William Grady | Other | — | 29 | ~1901 |
| John Butler | Other | — | 21 | ~1909 |
| Richard Philips | Son | — | 2 | ~1928 |
| John Grady | Head | — | 44 | ~1886 |
| Adolph Philips | Other | — | 40 | ~1890 |
| Theresa Philips | Daughter | — | 10 | ~1920 |
| Nora Philips | Spouse | — | 38 | ~1892 |
| Mary Caney | Other | — | 70 | ~1860 |
| Francis Philips | Son | — | 9 | ~1921 |
| Margaret Grady | Spouse | — | 20 | ~1910 |
Census Appearances
1930
Cook, Illinois
Head, age 44
Cook, Illinois · implied b. ~1886 — 11 household members
| Surname | Grady |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | New York |
| Occupation | Roofer |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 32 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 54
Cook-County, Illinois · implied b. ~1886 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grady |
| Given Name | John |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Retired Policeman |
| Industry | Chicago Police |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Grady across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Grady
Head · 1930 · age 44 · b. ~1886 · 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:illinoiscensus00reel455:0563)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gezarive Caney | 18 | Daughter | — | Illinois |
| 2 | John Grady THIS PERSON | 44 | Head | Roofer | Illinois |
| 3 | William Grady | 29 | Brother | Roofer | Illinois |
| 4 | Margaret Grady | 20 | Wife | Waitress | Illinois |
| 5 | John Butler | 21 | Roomer | Laborer | Illinois |
| 6 | Mary Caney | 70 | Mother | — | New York |
| 7 | Adolph Philips | 40 | Father-H | Mail Clerk | Wisconsin |
| 8 | Nora Philips | 38 | Wife | — | Illinois |
| 9 | Theresa Philips | 10 | Daughter | — | Illinois |
| 10 | Francis Philips | 9 | Son | — | Illinois |
| 11 | Urban Philips | 4 | Son | — | Illinois |
| 12 | Richard Philips | 2 | Son | — | Illinois |
| 13 | Albert Dvorak | 28 | Head | Chauffeur | Illinois |
| 14 | Lillian Dvorak | 25 | Wife | — | Illinois |
| 15 | Gezar Dvorak | 8 | Daughter | — | Illinois |
| 16 | Lillian Dvorak | 5 | Daughter | — | Illinois |
| 17 | Albert Dvorak | 3 | Son | — | Illinois |
| 18 | Frank Rachac | 38 | Head | Factory | Illinois |
| 19 | John Loftus | 41 | Head | Teamster | Illinois |
| 20 | Catherine Loftus | 40 | Wife | — | Illinois |
| 21 | John Loftus | 24 | Son | Elevator | Illinois |
| 22 | Edward Loftus | 22 | Son | Chauffeur | Illinois |
| 23 | Elda Loftus | 16 | Daughter | — | Illinois |
| 24 | James Loftus | 11 | Son | — | Illinois |
| 25 | Steve Busho | 40 | Head | Meat Cutter | Germany |
| 26 | Mary Busho | 33 | Wife | — | Minnesota |
| 27 | Marian Busho | 15 | Daughter | — | Minnesota |
| 28 | Anna Busho | 13 | Daughter | — | Minnesota |
| 29 | Elizabeth Busho | 11 | Daughter | — | Minnesota |
| 30 | Josephine Busho | 9 | Daughter | — | Minnesota |
| 31 | Caroline Busho | 8 | Daughter | — | Minnesota |
| 32 | Steve Jr. Busho | 6 | Son | — | Minnesota |
| 33 | Tony Busho | 5 | Son | — | Minnesota |
| 34 | Joseph Knafelc | 51 | Head | Laborer | Yugoslavia |
| 35 | Agatha Knafelc | 53 | Wife | — | Germany |
| 36 | Frank R. Durand | 73 | Head | Retired | Canada |
| 37 | Lydia H. Durand | 62 | Wife | — | Maine |
| 38 | Gilbert Durand | 46 | Son | Laborer | Minnesota |
| 39 | Louis Durand | 45 | Son | Teamster | Illinois |
| 40 | Agnes Durand | 39 | Daughter | Factory | Illinois |
| 41 | Lillian Durand | 37 | Daughter | Punch Board Operator | Illinois |
| 42 | Lydia Lillian Durand | 16 | Daughter | — | Illinois |
| 43 | Nellie Sumpp | 42 | Wife | — | Illinois |
| 44 | Charles Sumpp | 41 | Head | Storekeeper | Illinois |
| 45 | John Sumpp | 10 | Son | — | Illinois |
| 46 | Lois Sumpp | 7 | Daughter | — | Illinois |
| 47 | June Sumpp | 1 | Daughter | — | Illinois |
| 48 | Josie Cinemella | 37 | Sister | Waitress | Illinois |
| 49 | Rose Cinemella | 15 | Daughter | — | Illinois |
| 50 | Frank Cinemella | 14 | Son | — | 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)