HG
Harry Gray — 1930 US Census Record
Model Tree available1930 United States Federal Census · St Clair, Illinois
Our Model Tree links this Harry Gray across the 1910, 1920 and 1930 US Censuses in St Clair, Illinois (XGBoost, ~Confirmed), with identified parents Harry & Emma — first a son (b.~1907), then head of a 7-person household.
Age 23
b. ~1907
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | St Clair, Illinois |
| Surname | Gray |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | East Carondelet Village |
| Est. Birth Year | ~1907 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Margaret Gray | Daughter | — | 15 | ~1915 |
| Russell Gray | Son | — | 16 | ~1914 |
| Walter Gray | Son | — | 22 | ~1908 |
| Harry Gray | Head | — | 45 | ~1885 |
| Mary Gray | Spouse | — | 44 | ~1886 |
| Harry Gray | Son | — | 23 | ~1907 |
| Robert Gray | Son | — | 10 | ~1920 |
Census Appearances
1910
St Clair, …
Son, age 5
St Clair, Illinois · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
St Clair, …
Son, age 14
St Clair, Illinois · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Harry |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Son, age 23
St Clair, Illinois · implied b. ~1907 — 7 household members
| Surname | Gray |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Clerk |
| Industry | Grocer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Harry Gray across 3 US Census years (1910, 1920 and 1930) in St Clair, Illinois, using XGBoost record linkage. Identified parents: father Harry Gray (~0.92 confidence) and mother Emma Gray (~0.92 confidence) and mother Emma Gray (~0.92 confidence) and mother Mary Gray (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Gray
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Emma Gray
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Emma Gray
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary Gray
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Gray
Son · 1930 · age 23 · b. ~1907 · Illinois
★ You are viewing this record
Sibling
Walter Gray
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Gray
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gray
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Gray
Sibling · 1930 · age 16
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 — St Clair, Illinois
Open full size
1930 US Federal Census — St Clair, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel557:1014)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | August J Dragons | 52 | Head | Line Foreman | Illinois |
| 2 | Margaret Dragons | 53 | Wife | — | Kentucky |
| 3 | Emma C Dragons | 22 | Daughter | — | Illinois |
| 4 | Carl W Dragons | 17 | Son | — | Illinois |
| 5 | John H Bonsky | 54 | Head | Teamster | Illinois |
| 6 | Carrie Bonsky | 48 | Wife | — | Illinois |
| 7 | Gladys Bonsky | 15 | Daughter | — | Illinois |
| 8 | Harry G Gray | 45 | Head | Loco Engineer | Illinois |
| 9 | Mary Gray | 44 | Wife | — | Illinois |
| 10 | Harry Gray THIS PERSON | 23 | Son | Clerk | Illinois |
| 11 | Walter Gray | 22 | Son | Brakeman | Illinois |
| 12 | Russell Gray | 16 | Son | — | Illinois |
| 13 | Margaret Gray | 15 | Daughter | — | Illinois |
| 14 | Robert Gray | 10 | Son | — | Illinois |
| 15 | Louis B Le Beau | 27 | Head | Brakeman | Illinois |
| 16 | Irene Le Beau | 22 | Wife | — | Illinois |
| 17 | Lois Le Beau | 1 | Daughter | — | Illinois |
| 18 | John Q Hiedgel | 70 | Head | Loco Engineer | Michigan |
| 19 | Laura A Hiedgel | 70 | Wife | — | Ohio |
| 20 | Emma Hiedgel | 35 | Daughter | — | Illinois |
| 21 | Florence Hiedgel | 18 | Daughter | — | Illinois |
| 22 | Laura Hiedgel | 16 | Granddaughter | — | Illinois |
| 23 | Louis E Smothers | 39 | Head | Loco Fireman | Missouri |
| 24 | Clara Smothers | 35 | Wife | — | Illinois |
| 25 | Clarence Smothers | 10 | Son | — | Missouri |
| 26 | Ruth Smothers | 12 | Daughter | — | Missouri |
| 27 | Louis Smothers | 1 | Son | — | Missouri |
| 28 | Frank B Goodwin | 34 | Head | Loco Fireman | Missouri |
| 29 | Beulah Goodwin | 31 | Wife | — | Illinois |
| 30 | Robert Goodwin | 11 | Son | — | Illinois |
| 31 | Mary Schmuck | 59 | Mother-in-law | — | Illinois |
| 32 | Adolph Reich | 31 | Head | Brakeman | Ohio |
| 33 | Emma Reich | 25 | Wife | — | Illinois |
| 34 | Dolores Reich | 4 | Daughter | — | Illinois |
| 35 | Adolph Reich | 1 | Son | — | Illinois |
| 36 | Paul H Spies | 65 | Head | Loco Engineer | Germany |
| 37 | Mary C Spies | 65 | Wife | — | Illinois |
| 38 | Fred Spies | 35 | Head | Loco Engineer | Illinois |
| 39 | Mildred Spies | 30 | Wife | — | Illinois |
| 40 | Raymond Spies | 11 | Son | — | Illinois |
| 41 | Dorothy Spies | 9 | Daughter | — | Illinois |
| 42 | Mary L Spies | 1 | Daughter | — | Illinois |
| 43 | Fred L Daab | 45 | Head | Loco Engineer | Illinois |
| 44 | Margaret Daab | 40 | Wife | — | Kansas |
| 45 | Harry Daab | 10 | Son | — | Illinois |
| 46 | Charles B Hopkins | 36 | Head | Office Clerk | Illinois |
| 47 | Leadora Hopkins | 35 | Wife | — | Illinois |
| 48 | Beatrice Hopkins | 14 | Daughter | — | Illinois |
| 49 | Charles Jr Hopkins | 12 | Son | — | Illinois |
| 50 | James Hopkins | 7 | Son | — | Illinois |
Pedigree Summary
Harry + 4 siblings
Gen 1 · 4 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)