LM
Leo Miller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Peoria-County, Illinois
Our Model Tree links this Leo Miller across the 1920, 1930 and 1940 US Censuses in Peoria-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Peoria-County, Illinois |
| Surname | Miller |
| Given Name | Leo J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Peoria city |
| 1935 Residence (County) | Peoria |
| Additional Details | |
| Occupation | Metal Polisher |
| Industry | Washing Machine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 436 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Metal Polisher |
| Township / Ward | Peoria City |
| Est. Birth Year | ~1894 |
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 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Walter Miller | Son | — | 20 | ~1920 |
| Leo Miller | Head | — | 46 | ~1894 |
| Lena Miller | Spouse | — | 46 | ~1894 |
| Leo Miller | Son | — | 5 | ~1935 |
Census Appearances
1920
Peoria, Illinois
Head, age 25
Peoria, Illinois · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Leo J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Buffer |
| Industry | Stove factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Peoria, Illinois
Head, age 35
Peoria, Illinois · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Leo J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Metal Polisher |
| Industry | Marque Plating |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Peoria-County, Illinois
Head, age 46
Peoria-County, Illinois · implied b. ~1894 — 4 household members
| Surname | Miller |
| Given Name | Leo J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Peoria city |
| 1935 Residence (County) | Peoria |
| Occupation | Metal Polisher |
| Industry | Washing Machine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 436 |
| Highest Grade | Hs 4 |
| 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 Leo Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Leo Miller
Head · 1940 · age 46 · b. ~1894 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Peoria-County, Illinois
Open full size
1940 US Federal Census — Peoria-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00919-00285)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred C. Swan | 37 | Wife | — | Illinois |
| 2 | Betty Jean Swan | 12 | Daughter | — | Illinois |
| 3 | Ivan Jr. Swan | 11 | Son | — | Illinois |
| 4 | Oliver B. Taylor | 46 | Head | Repair Man | Illinois |
| 5 | Olive E. Taylor | 43 | Wife | — | Illinois |
| 6 | Morris E. Taylor | 19 | Son | New Worker | Illinois |
| 7 | Shirley J. Taylor | 15 | Daughter | — | Illinois |
| 8 | Marian M. Taylor | 14 | Daughter | — | Illinois |
| 9 | Maurine J. Taylor | 10 | Daughter | — | Illinois |
| 10 | Alta E. Parkin | 72 | Mother-in-law | House Wife | Illinois |
| 11 | Martha Neiderberger | 76 | Head | — | Ohio |
| 12 | Carl R. Ludwig | 34 | Head | Salesman | Pennsylvania |
| 13 | Alma V. Ludwig | 31 | Wife | — | Illinois |
| 14 | Ronald L. Ludwig | 5 | Son | — | Illinois |
| 15 | Judith R. Ludwig | 3 | Daughter | — | Illinois |
| 16 | John T. Howlett | 85 | Father-in-law | — | Illinois |
| 17 | Michael V. Crowley | 35 | Head | Water Sampler | Illinois |
| 18 | Gertrude B. Crowley | 31 | Wife | — | Illinois |
| 19 | Dorothy M. Crowley | 15 | Daughter | — | Illinois |
| 20 | Richard E. Crowley | 14 | Son | — | Illinois |
| 21 | Marjorie M. Crowley | 11 | Daughter | — | Illinois |
| 22 | Donald G. Crowley | 7 | Son | — | Illinois |
| 23 | Morris A. Crowley | 2 | Son | — | Illinois |
| 24 | Leonard P. Swan | 44 | Head | Car Repairer | Illinois |
| 25 | Arvilla C. Swan | 40 | Wife | — | Illinois |
| 26 | Dorothy A. Swan | 19 | Daughter | — | Illinois |
| 27 | Betty Jane Swan | 15 | Daughter | — | Illinois |
| 28 | Mary M. Swan | 8 | Daughter | — | Illinois |
| 29 | George Martin | 4 | Son | — | Illinois |
| 30 | George M. Martin | 82 | Head | Rail Road | Pennsylvania |
| 31 | Sadie D. Martin | 64 | Wife | — | Illinois |
| 32 | End Block 329 Begin Block 349 | None | — | — | — |
| 33 | Leo J. Miller THIS PERSON | 46 | Head | Metal Polisher | Illinois |
| 34 | Lena Miller | 46 | Wife | — | Illinois |
| 35 | Walter A. Miller | 20 | Son | Bookkeeper | Illinois |
| 36 | Leo James Miller | 5 | Son | — | Illinois |
| 37 | Charles England | 69 | Head | Head Janitor | Illinois |
| 38 | Matilda England | 62 | Wife | — | Illinois |
| 39 | John Metheram | 58 | Head | Comm. Public W. | Illinois |
| 40 | Mayme M. Metheram | 62 | Wife | — | Illinois |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)