JG
John Grady — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cuyahoga, Ohio
Our Model Tree links this John Grady across the 1920, 1930 and 1940 US Censuses in Cuyahoga, Ohio (XGBoost, ~Confirmed), with identified parents Henry & Henry — first a son (b.~1917), then head of a 9-person household.
Age 13
b. ~1917
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cuyahoga, Ohio |
| Surname | Grady |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | New York |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Cleveland City |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Grady | Son | — | 7 | ~1923 |
| John Grady | Son | — | 13 | ~1917 |
| Joseph Grady | Son | — | 18 | ~1912 |
| Nellie Grady | Spouse | — | 45 | ~1885 |
| Edward Grady | Son | — | 10 | ~1920 |
| Eileen Grady | Daughter | — | 16 | ~1914 |
| Elizabeth Cullen | Other | — | 56 | ~1874 |
| Henry Grady | Head | — | 46 | ~1884 |
| Marilyn Grady | Daughter | — | 4 | ~1926 |
Census Appearances
1920
Cuyahoga, Ohio
Son, age 2
Cuyahoga, Ohio · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grady |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | New York |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 13
Cuyahoga, Ohio · implied b. ~1917 — 9 household members
| Surname | Grady |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | New York |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Other, age 23
Cuyahoga-County, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grody |
| Given Name | John |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Occupation | Auto Salesman |
| Industry | Automobile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 966 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Grady (~0.92 confidence) and father Henry Grady (~0.92 confidence) and mother Nellie Grady (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Grady
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Henry Grady
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Nellie Grady
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Grady
Son · 1930 · age 13 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
Joseph Grady
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Grady
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Grady
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Grady
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Grady
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cuyahoga, Ohio
Open full size
1930 US Federal Census — Cuyahoga, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1763:0734)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Beulah Kaiser-Prestel | 19 | Head | Laborer | Ohio |
| 2 | Mary Kaiser-Prestel | 55 | Mother | — | Ohio |
| 3 | Gueldine Kaiser-Prestel | 15 | Brother | — | Ohio |
| 4 | Gerald Kaiser-Prestel | 12 | Brother | — | Ohio |
| 5 | Glenn Sharkey | 23 | Brother | Mechanic | Ohio |
| 6 | Gertrude Sharkey | 34 | Sister | Saleslady | Ohio |
| 7 | Helen Sharkey | 31 | Sister | Saleslady | Ohio |
| 8 | Theodore Shumbus | 21 | Roomer | — | Massachusetts |
| 9 | Myra Anton | 24 | Roomer | Nurse | Ohio |
| 10 | Joseph Cullen | 57 | Head | General Service | Ohio |
| 11 | Mary Cullen | 55 | Wife | — | England |
| 12 | Henry Grady | 46 | Head | Telegrapher | New York |
| 13 | Nellie Grady | 45 | Wife | — | Ohio |
| 14 | Joseph Grady | 18 | Son | — | Ohio |
| 15 | Eileen Grady | 16 | Daughter | — | Ohio |
| 16 | John Grady THIS PERSON | 13 | Son | — | Ohio |
| 17 | Edward Grady | 10 | Son | — | Ohio |
| 18 | William Grady | 7 | Son | — | Ohio |
| 19 | Marilyn Grady | 4 | Daughter | — | Ohio |
| 20 | Elizabeth Cullen | 56 | Roomer | Servant | Ohio |
| 21 | Edmond Dignan | 51 | Head | Tallyman | Canada-English |
| 22 | Augusta Dignan | 47 | Wife | — | Germany |
| 23 | Howard Dignan | 19 | Son | Rate Clerk | Ohio |
| 24 | Della Dignan | 10 | Daughter | — | Ohio |
| 25 | Charlie Tiffman | 30 | Roomer | Laborer | Ohio |
| 26 | Robert Mckenzie | 61 | Head | Mail Carrier | Canada-English |
| 27 | Dorothy Mckenzie | 58 | Wife | — | Ohio |
| 28 | William Mckenzie | 27 | Son | Reporter | Ohio |
| 29 | James O'Shea | 24 | Roomer | Demonstrator | Canada-English |
| 30 | Robert Murray | 21 | Roomer | Salesman | Ohio |
| 31 | Minnie Riddle | 42 | Head | — | West Virginia |
| 32 | Dona Riddle | 16 | Daughter | — | West Virginia |
| 33 | Betty Jane Riddle | 6 | Daughter | — | West Virginia |
| 34 | James Keegan | 17 | Roomer | — | New York |
| 35 | Charles Flanegran | 36 | Roomer | Salesman | Unknown |
| 36 | Lula A. Wickeling | 58 | Head | Librarian | Ohio |
| 37 | Emma Wickeling | 72 | Mother | — | Ohio |
| 38 | Marshall Heller | 48 | Head | Hardware | Austria |
| 39 | Clara Heller | 44 | Wife | Salesman | Austria |
| 40 | Newton Heller | 22 | Son | — | Austria |
| 41 | Jack Heller | 20 | Son | — | Austria |
| 42 | Hannah Heller | 17 | Daughter | — | Austria |
| 43 | Ellen Ruth Heller | 7 | Daughter | — | Ohio |
| 44 | Ernest Yamuchi | 30 | Head | Barber | Italy |
| 45 | Lena Yamuchi | 21 | Wife | — | Ohio |
| 46 | Martin Yamuchi | 2 | Son | — | Ohio |
| 47 | Virginia Cervelli | 12 | Sister-in-law | — | Ohio |
| 48 | Frank Cervelli | 14 | Brother-in-law | — | Ohio |
| 49 | Robert E. Matthews | 28 | Head | Photographer | Missouri |
| 50 | Emma Matthews | 29 | Wife | — | Ohio |
Pedigree Summary
John + 5 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)