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Leonard Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Tazewell, Illinois
Our Model Tree links this Leonard Davis across the 1930 and 1940 US Censuses in Tazewell, Illinois (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 12-person household.
Age 16
b. ~1914
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Tazewell, Illinois |
| Surname | Davis |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Laborer |
| Industry | Railroad Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | East Peoria City Part Of |
| Est. Birth Year | ~1914 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Leonard Davis | Son | — | 16 | ~1914 |
| Ethel Davis | Daughter | — | 12 | ~1918 |
| Everett Davis | Son | — | 11 | ~1919 |
| Theodore Davis | Son | — | 23 | ~1907 |
| Donna Davis | Daughter | — | 9 | ~1921 |
| Eva Davis | Other | — | 45 | ~1885 |
| Bertha Davis | Daughter | — | 21 | ~1909 |
| Shirley Davis | Daughter | — | 1 | ~1929 |
| Lavell Davis | Daughter | — | 14 | ~1916 |
| Lillian Davis | Daughter | — | 4 | ~1926 |
| Marion Davis | Daughter | — | 19 | ~1911 |
| James Davis | Head | — | 44 | ~1886 |
Census Appearances
1930
Tazewell, Illinois
Son, age 16
Tazewell, Illinois · implied b. ~1914 — 12 household members
| Surname | Davis |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Railroad Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tazewell-County, Illinois
Son, age 26
Tazewell-County, Illinois · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Lenard D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East Peoria |
| 1935 Residence (County) | Tazewell |
| Occupation | Laborer |
| Industry | Machine Shop |
| Class of Worker | PW |
| Income (1939) | 988 |
| Highest Grade | 7 |
| 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 Leonard Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leonard Davis
Son · 1930 · age 16 · b. ~1914 · Illinois
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Sibling
Lillian Davis
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Davis
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donna Davis
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Davis
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Davis
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Davis
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lavell Davis
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Davis
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Davis
Sibling · 1930 · age 12
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 — Tazewell, Illinois
Open full size
1930 US Federal Census — Tazewell, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel562:0451)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ruth Durham | 37 | Wife-H | — | Illinois |
| 52 | Helen Durham | 16 | Daughter | — | Illinois |
| 53 | Fred Durham | 14 | Son | — | Illinois |
| 54 | Russell Durham | 13 | Son | — | Illinois |
| 55 | John Durham | 60 | Head | Carpenter | Illinois |
| 56 | Nellie Durham | 54 | Wife-H | Washer | Illinois |
| 57 | Evert Simpson | 49 | Head | Pipe Fitter | Indiana |
| 58 | Jane Simpson | 48 | Wife-H | — | Illinois |
| 59 | Ruby Hunton | 25 | Step Daughter | Presser | Illinois |
| 60 | Earl Hunton | 6 | Grand Son | — | Illinois |
| 61 | Curtis Valentine | 28 | Head | Machinist | Missouri |
| 62 | Ione Valentine | 22 | Wife-H | — | Michigan |
| 63 | Howard Valentine | 3 | Son | — | Michigan |
| 64 | Helen Valentine | 2 | Daughter | — | Indiana |
| 65 | Mae Valentine | 0 | Daughter | — | Illinois |
| 66 | Howard Nicks | 19 | Brother | Machinist | Missouri |
| 67 | Charles Buckler | 36 | Head | Painter | Illinois |
| 68 | Josephine Buckler | 35 | Wife-H | — | Illinois |
| 69 | Charles Jr. Buckler | 11 | Son | — | Illinois |
| 70 | Virginia Buckler | 9 | Daughter | — | Illinois |
| 71 | Donald Buckler | 8 | Son | — | Illinois |
| 72 | Edna Buckler | 6 | Daughter | — | Illinois |
| 73 | Wanetta Buckler | 4 | Daughter | — | Illinois |
| 74 | Arthur Brighton | 51 | Head | Sticker | Iowa |
| 75 | Lula Brighton | 46 | Wife-H | — | Iowa |
| 76 | David Groom | 26 | Son | Molder | Illinois |
| 77 | Merla Brighton | 7 | Daughter | — | Illinois |
| 78 | Adalfa Rogerman | 35 | Boarder | Laborer | Illinois |
| 79 | Oscar Lee | 50 | Head | Laborer | Illinois |
| 80 | Etta Lee | 49 | Wife-H | — | Illinois |
| 81 | Claude Lee | 30 | Son | Salesman | Illinois |
| 82 | Vernon Lee | 12 | Son | — | Illinois |
| 83 | James Davis | 44 | Head | Fireman | Illinois |
| 84 | Eva Davis | 45 | Wife-H | — | Illinois |
| 85 | Theodore Davis | 23 | Son | Laborer | Illinois |
| 86 | Bertha Davis | 21 | Daughter | — | Illinois |
| 87 | Marion Davis | 19 | Daughter | — | Illinois |
| 88 | Leonard Davis THIS PERSON | 16 | Son | Laborer | Illinois |
| 89 | Lavell Davis | 14 | Daughter | — | Iowa |
| 90 | Ethel Davis | 12 | Daughter | — | Wisconsin |
| 91 | Everett Davis | 11 | Son | — | Wisconsin |
| 92 | Donna Davis | 9 | Daughter | — | Wisconsin |
| 93 | Lillian Davis | 4 | Daughter | — | South Dakota |
| 94 | Shirley Davis | 1 | Daughter | — | Illinois |
| 95 | Leo Davis | 25 | Head | Laborer | Illinois |
| 96 | Ruth Davis | 24 | Wife-H | — | Minnesota |
| 97 | Doris Davis | 2 | Daughter | — | Wisconsin |
| 98 | Leland Davis | 1 | Son | — | South Dakota |
| 99 | Leland Middleton | 25 | Head | Molder | Illinois |
| 100 | Edith Middleton | 24 | Wife-H | — | 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)