HG
Harry Gray — 1920 US Census Record
Model Tree available1920 United States Federal Census · St Clair, Illinois
Our Model Tree links this Harry Gray across the 1900, 1910 and 1920 US Censuses in St Clair, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1881), then head of a 4-person household.
Age 39
b. ~1881
Male
Son
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | St Clair, Illinois |
| Surname | Gray |
| Given Name | Harry C |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Cement worker |
| Industry | Government |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Cement Worker |
| Township / Ward | East St Louis City |
| Est. Birth Year | ~1881 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| John Gray | Head | — | 72 | ~1848 |
| Archie Gray | Son | — | 27 | ~1893 |
| Addie Gray | Spouse | — | 67 | ~1853 |
| Harry Gray | Son | — | 39 | ~1881 |
Census Appearances
1900
St Clair, …
Son, age 20
St Clair, Illinois · implied b. ~1880 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Harry J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Birth Month | Nov |
| Birth Year | 1880 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Illinois |
| Occupation | * |
| Can Read | * |
| Can Write | Day laborer |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
St Clair, …
Son, age 28
St Clair, Illinois · implied b. ~1882 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | odd jobs |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
St Clair, …
Son, age 39
St Clair, Illinois · implied b. ~1881 — 4 household members
| Surname | Gray |
| Given Name | Harry C |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Illinois |
| Occupation | Cement worker |
| Industry | Government |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 (1900, 1910 and 1920) in St Clair, Illinois, using XGBoost record linkage. Identified parents: father John Gray (~0.92 confidence) and father John Gray (~0.92 confidence) and mother Ada Gray (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Gray
b. ~1848
Source father
● Household
· direct · ~0.92
Father
John Gray
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Ada Gray
b. ~1852
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Gray
Son · 1920 · age 39 · b. ~1881 · Illinois
★ You are viewing this record
Sibling
Archie Gray
Sibling · 1920 · age 27
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
1920 US Federal Census — St Clair, Illinois
Open full size
1920 US Federal Census — St Clair, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu404unit:0818)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frances L Harris | 10 | daughter | None | Illinois |
| 52 | Lena M Harris | 8 | daughter | None | Illinois |
| 53 | Mckinley L Harris | 3 | son | None | Illinois |
| 54 | Dorothy L Harris | 2 | daughter | None | Illinois |
| 55 | Herbert W Bruce | 31 | roomer | Engineer | Indiana |
| 56 | Itta G Bruce | 25 | roomer | None | Indiana |
| 57 | Laverne Bruce | 4 | roomer | None | Indiana |
| 58 | Orville G Bruce | 1 | roomer | None | Indiana |
| 59 | James P Lawlor | 31 | head | Clerk | Pennsylvania |
| 60 | Gertrude A Lawlor | 24 | wife | None | Illinois |
| 61 | Roy X Droit | 30 | brother in law | Steam Fitter | Illinois |
| 62 | Frank L Heath | 47 | head | Watchman | Illinois |
| 63 | Mary A Heath | 46 | wife | None | Nebraska |
| 64 | Gladys L Heath | 10 | daughter | None | Illinois |
| 65 | Walter Nizgaffe | 45 | head | Laborer | Illinois |
| 66 | Maud E Nizgaffe | 31 | wife | None | Illinois |
| 67 | Enfield Verla M Nizgaffe | 2 | daughter | None | Illinois |
| 68 | John C Gray | 72 | head | Watchman | Tennessee |
| 69 | Addie E Gray | 67 | wife | None | Illinois |
| 70 | Harry C Gray THIS PERSON | 39 | son | Cement Worker | Illinois |
| 71 | Archie G Gray | 27 | son | Car Inspector | Illinois |
| 72 | Benjamin Willoughby | 52 | head | Boiler Maker | Missouri |
| 73 | Cora Willoughby | 41 | wife | None | Missouri |
| 74 | Goldie Willoughby | 14 | daughter | None | Illinois |
| 75 | Benjamin Willoughby | 8 | son | None | Illinois |
| 76 | Max Lunkman | 43 | head | Miller | Germany |
| 77 | Mary A Lunkman | 38 | wife | None | Missouri |
| 78 | Lillian E Lunkman | 18 | daughter | None | Missouri |
| 79 | Fanny D Lunkman | 15 | daughter | None | Illinois |
| 80 | Iva G Lunkman | 1 | son | None | Illinois |
| 81 | Edward Carpenter | 40 | Boarder | Miller | Illinois |
| 82 | George A Ripley | 50 | head | Yard Master | Michigan |
| 83 | Alma A Ripley | 36 | wife | None | Illinois |
| 84 | George E Ripley | 12 | son | None | Illinois |
| 85 | Elijah A Talbott | 34 | head | Foreman | Illinois |
| 86 | Lura A Talbott | 44 | wife | None | Illinois |
| 87 | Homer V Talbott | 22 | son | Structural Iron | Illinois |
| 88 | Lucille Talbott | 13 | daughter | None | Illinois |
| 89 | Herbert E Talbott | 12 | son | None | Illinois |
| 90 | Joseph Davis | 66 | head | Blacksmith | Wales |
| 91 | Louisa J Davis | 38 | daughter | Stenographer | Illinois |
| 92 | David Davis | 37 | son | Machinist | Illinois |
| 93 | Evan Davis | 27 | son | Pattern Maker | Illinois |
| 94 | Lewis G. Logsdon | 43 | head | Barber | Kentucky |
| 95 | Walter A Schmieri | 37 | head | Civil Engineer | Illinois |
| 96 | Nettie V Schmieri | 41 | wife | None | Illinois |
| 97 | Alan M Schmieri | 8 | son | None | Illinois |
| 98 | James E Chattle | 46 | head | Engineer | Missouri |
| 99 | Maud E Chattle | 42 | wife | None | Missouri |
| 100 | Pearl V Chattle | 18 | daughter | Bank Clerk | Missouri |
Pedigree Summary
Harry + 1 sibling
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 1920 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)