JG
James Grady — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this James Grady across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 10-person household.
Age 45
b. ~1885
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Grady |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | U.S. |
| Mother's Birthplace | U.S. |
| Additional Details | |
| Occupation | Yard Master |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Yard Master |
| Township / Ward | Chicago |
| Est. Birth Year | ~1885 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mabel Grady | Spouse | — | 40 | ~1890 |
| Pearl Grady | Daughter | — | 8 | ~1922 |
| Roberta Grady | Daughter | — | 11 | ~1919 |
| Mante Donahue | Other | — | 42 | ~1888 |
| William Grady | Son | — | 15 | ~1915 |
| James Grady | Head | — | 45 | ~1885 |
| Joseph Grady | Daughter | — | 15 | ~1915 |
| Mante Grady | Daughter | — | 19 | ~1911 |
| Shirley Grady | Daughter | — | 12 | ~1918 |
| James Grady | Son | — | 9 | ~1921 |
Census Appearances
1930
Cook, Illinois
Head, age 45
Cook, Illinois · implied b. ~1885 — 10 household members
| Surname | Grady |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | U.S. |
| Mother's Birthplace | U.S. |
| Occupation | Yard Master |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 55
Cook-County, Illinois · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grady |
| Given Name | James |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Marble Setter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 250 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 James Grady across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Grady
Head · 1930 · age 45 · b. ~1885 · 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
48 people indexed on this census page (ia:1930:illinoiscensus00reel431:0784)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William J. Malloy | 53 | Head | Locomotive Engineer | Illinois |
| 52 | Emma Malloy | 48 | Wife | — | Michigan |
| 53 | William Malloy | 19 | Son | Pounder | Illinois |
| 54 | Marshall Malloy | 18 | Son | — | Illinois |
| 55 | James Grady THIS PERSON | 45 | Head | Yard Master | Illinois |
| 56 | Mabel Grady | 40 | Wife | — | Iowa |
| 57 | Joseph Grady | 15 | Daughter | — | Illinois |
| 58 | Shirley Grady | 12 | Daughter | — | Illinois |
| 59 | Roberta Grady | 11 | Daughter | — | Illinois |
| 60 | James Grady | 9 | Son | — | Illinois |
| 61 | Pearl Grady | 8 | Daughter | — | Illinois |
| 62 | Mante Grady | 19 | Daughter | Stenographer | Illinois |
| 63 | William Grady | 15 | Son | — | Illinois |
| 64 | Mante Donahue | 42 | Sister | Auditor + Bookkeeper | Iowa |
| 65 | John Lally | 31 | Head | Conductor | Irish Free State |
| 66 | Alice H. Lally | 30 | Wife | — | Irish Free State |
| 67 | Jack Lally | 5 | Son | — | Illinois |
| 68 | Marie Lally | 3 | Daughter | — | Illinois |
| 69 | Thomas Lally | 2 | Son | — | Illinois |
| 70 | Edward Lally | 0 | Son | — | Illinois |
| 71 | Edward Kolhauser | 36 | Head | Blacksmith | Austria |
| 72 | Anna Kolhauser | 34 | Wife | — | Austria |
| 73 | Edward Kolhauser | 12 | Son | — | Illinois |
| 74 | Alfreda Kolhauser | 3 | Daughter | — | Illinois |
| 75 | William Coventry | 50 | Head | Accountant | Canada English |
| 76 | Pearl Coventry | 40 | Wife | — | Illinois |
| 77 | Margaret Coventry | 20 | Daughter | Stenographer | Illinois |
| 78 | Evangeline Coventry | 13 | Daughter | — | Illinois |
| 79 | Violet Coventry | 21 | Daughter | Repairer | Illinois |
| 80 | Pearl Pearl | 20 | Sister | — | Illinois |
| 81 | Howard Pflaum | 24 | Head | Electrician | Illinois |
| 82 | Josephine Pflaum | 24 | Wife | — | Pennsylvania |
| 83 | Howard Jr. Pflaum | 1 | Son | — | Illinois |
| 84 | Bernard Cunningham | 37 | Head | Train Dispatcher | Illinois |
| 85 | Emily Cunningham | 24 | Wife | — | Mississippi |
| 86 | John Raef | 29 | Head | Bookkeeper | Illinois |
| 87 | Golda Raef | 28 | Wife | — | Illinois |
| 88 | Mary Raef | 7 | Daughter | — | Illinois |
| 89 | Madeline Raef | 5 | Daughter | — | Illinois |
| 92 | John Hacks | 33 | Head | Welder | Russia |
| 93 | Ruth Hacks | 35 | Wife | — | Pennsylvania |
| 94 | Thelma Palmer | 15 | Step-daughter | — | Pennsylvania |
| 95 | Charles Murphy | 38 | Head | Operator | Indiana |
| 96 | Alice Murphy | 46 | Wife | — | Indiana |
| 97 | Oliver Murphy | 25 | Son | — | Indiana |
| 98 | Frank Liccar | 24 | Head | Mechanic | Illinois |
| 99 | Jean Liccar | 20 | Wife | — | Illinois |
| 100 | John Fejes | 22 | Brother-in-law | Hammer | 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)