ED
Earl Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Grundy, Illinois
Our Model Tree links this Earl Davis across the 1930 and 1940 US Censuses in Grundy, Illinois (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 13-person household.
Age 17
b. ~1913
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Grundy, Illinois |
| Surname | Davis |
| Given Name | Earl |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Mazon Township |
| Est. Birth Year | ~1913 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| June Davis | Daughter | — | 12 | ~1918 |
| Susan Davis | Daughter | — | ~1930 | |
| Rose Davis | Daughter | — | 1 | ~1929 |
| Lelah Davis | Daughter | — | 14 | ~1916 |
| Marian Davis | Daughter | — | 11 | ~1919 |
| Lucile Davis | Daughter | — | 16 | ~1914 |
| Joyce Davis | Daughter | — | 3 | ~1927 |
| Janet Davis | Daughter | — | 8 | ~1922 |
| Karl Davis | Head | — | 44 | ~1886 |
| Robert Davis | Son | — | 7 | ~1923 |
| Earl Davis | Son | — | 17 | ~1913 |
| Simon Davis | Son | — | 6 | ~1924 |
| Grace Davis | Spouse | — | 40 | ~1890 |
Census Appearances
1930
Grundy, Illinois
Son, age 17
Grundy, Illinois · implied b. ~1913 — 13 household members
| Surname | Davis |
| Given Name | Earl |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Grundy-County, Illinois
Son, age 27
Grundy-County, Illinois · implied b. ~1913 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davies |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Grundy |
| Occupation | Electrician |
| Industry | Refrigeration |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 314 |
| Highest Grade | H-4 |
| 1935 Residence | Illinois |
| 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 Earl Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Earl Davis
Son · 1930 · age 17 · b. ~1913 · Illinois
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Sibling
Janet Davis
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Davis
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucile Davis
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marian Davis
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joyce Davis
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Davis
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Simon Davis
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Davis
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lelah Davis
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Davis
Sibling · 1930 · age
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 — Grundy, Illinois
Open full size
1930 US Federal Census — Grundy, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel517:0868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rebecca Reed | 40 | Wife | None | Illinois |
| 2 | Reed Reed | 17 | son | Laborer | Illinois |
| 3 | Ross Reed | 17 | son | Laborer | Illinois |
| 4 | Evelyn Reed | 14 | daughter | None | Illinois |
| 5 | Bertha Reed | 9 | daughter | None | Illinois |
| 6 | Karl Davis | 44 | Head | Farmer | Illinois |
| 7 | Grace Davis | 40 | Wife | None | Illinois |
| 8 | Earl Davis THIS PERSON | 17 | son | Laborer | Illinois |
| 9 | Lucile Davis | 16 | daughter | None | Illinois |
| 10 | Lelah Davis | 14 | daughter | None | Illinois |
| 11 | June Davis | 12 | daughter | None | Illinois |
| 12 | Marian Davis | 11 | daughter | None | Illinois |
| 13 | Janet Davis | 8 | daughter | None | Illinois |
| 14 | Robert Davis | 7 | son | None | Illinois |
| 15 | Simon Davis | 6 | son | None | Illinois |
| 16 | Joyce Davis | 3 | daughter | None | Illinois |
| 17 | Rose M. Davis | 1 | daughter | None | Illinois |
| 18 | Susan Davis | 0 | daughter | None | Illinois |
| 19 | Lloyd H. Fancer | 33 | Head | Farmer | Illinois |
| 20 | Elsie Fancer | 35 | Wife | None | Illinois |
| 21 | June E. Fancer | 6 | daughter | None | Illinois |
| 22 | Shelby Baker | 28 | Head | Farmer | Illinois |
| 23 | Ruth Baker | 29 | Wife | None | Illinois |
| 24 | Fay E. Baker | 2 | daughter | None | Illinois |
| 25 | Wendell Walker | 27 | Head | Farmer | Illinois |
| 26 | Edna Walker | 21 | Wife | None | Illinois |
| 27 | Clyde Powers | 39 | Head | Farmer | Missouri |
| 28 | Bessie Powers | 44 | Wife | None | Illinois |
| 29 | Fred Burner | 24 | Nephew | None | Missouri |
| 30 | Elwood Payrum | 15 | Boarder | None | Indiana |
| 31 | Ray Riley | 37 | Head | Farmer | Indiana |
| 32 | Hattie Riley | 31 | Wife | None | Indiana |
| 33 | Raymond Riley | 15 | son | None | Indiana |
| 34 | Velma Riley | 12 | daughter | None | Indiana |
| 35 | Ray Riley | 10 | son | None | Illinois |
| 36 | Holly M. Riley | 3 | daughter | None | Illinois |
| 37 | Topbert Clithero | 58 | Head | Farmer | Illinois |
| 38 | Lily Clithero | 51 | Wife | None | Illinois |
| 39 | James Macpherson | 56 | Head | Farmer | Scotland |
| 40 | Jannett Macpherson | 52 | Wife | None | Scotland |
| 41 | James Macpherson | 19 | son | Laborer | Illinois |
| 42 | Robert Macpherson | 19 | son | Laborer | Illinois |
| 43 | Gordon Macpherson | 17 | son | Laborer | Illinois |
| 44 | Marion Macpherson | 13 | daughter | None | Illinois |
| 45 | John Barnes | 40 | Head | Laborer | Illinois |
| 46 | Grace Barnes | 37 | Wife | None | Illinois |
| 47 | Verna Barnes | 19 | daughter | None | Illinois |
| 48 | Nadine Brockman | 14 | Step-daughter | None | Illinois |
| 49 | Velma Barnes | 14 | daughter | None | Illinois |
| 50 | Clinton Barnes | 13 | son | None | Illinois |
Related Census Records
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)