LM
Louis Miller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Louis Miller across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1898), then head of a 3-person household.
Age 42
b. ~1898
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Miller |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1898 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Louis Miller | Head | — | 42 | ~1898 |
| Louis Miller | Son | — | 21 | ~1919 |
| Mary Miller | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 23
Allegheny, Pennsylvania · implied b. ~1897 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Laborer |
| Industry | Mill Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 32
Allegheny, Pennsylvania · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Laborer |
| Industry | Automobile Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 42
Allegheny-County, Pennsylvania · implied b. ~1898 — 3 household members
| Surname | Miller |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Louis Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Miller
Head · 1940 · age 42 · b. ~1898 · Pennsylvania
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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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03670-00229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur Gray | 58 | Head | — | Pennsylvania |
| 2 | Lois Gray | 55 | Wife | — | Maryland |
| 3 | George Miller | 54 | Head | Piece Worker Inspector | Pennsylvania |
| 4 | Mary H. Miller | 45 | Wife | — | Pennsylvania |
| 5 | Ralph Miller | 21 | Son | Helper (Truck) | Pennsylvania |
| 6 | Doris Miller | 19 | Daughter | New Worker | Pennsylvania |
| 7 | Louise Miller | 11 | Daughter | — | Pennsylvania |
| 8 | Fred Huntzelman | 63 | Head | Laborer | Pennsylvania |
| 9 | Catherine Huntzelman | 59 | Wife | — | Pennsylvania |
| 10 | Fred Jr. Huntzelman | 39 | Son | Laborer | Pennsylvania |
| 11 | June Huntzelman | 15 | Granddaughter | — | Pennsylvania |
| 12 | David Davis | 58 | Head | Clerk | Wales |
| 13 | William M. Davis | 27 | Son | — | Pennsylvania |
| 14 | Constance S. Davis | 23 | Daughter | — | Pennsylvania |
| 15 | John Jaroschak | 52 | Head | Laborer | Austria |
| 16 | Anne Jaroschak | 46 | Wife | — | Austria |
| 17 | Joseph Jaroschak | 26 | Son | Laborer | Pennsylvania |
| 18 | Talbot Chapman | 70 | Head | — | West Virginia |
| 19 | Elba Chapman | 68 | Wife | — | West Virginia |
| 20 | Arch Chapman | 27 | Son | Clerk | Pennsylvania |
| 21 | Talbot Jr. Chapman | 40 | Son | Freight Conductor | Kentucky |
| 22 | Mary Chapman | 28 | Daughter-in-law | — | Pennsylvania |
| 23 | John Chapman | 18 | Grandson | Clerk | Pennsylvania |
| 24 | Dorothy Chapman | 17 | Granddaughter | — | Pennsylvania |
| 25 | Anna M. Chapman | 62 | Granddaughter | — | Pennsylvania |
| 26 | Charles B. Chapman | 12 | Grandson | — | Pennsylvania |
| 27 | Michael Caulfield | 66 | Head | Laborer | Ireland |
| 28 | Cecilia Caulfield | 62 | Wife | — | Pennsylvania |
| 29 | James Caulfield | 28 | Son | Utility Man | Pennsylvania |
| 30 | Regina R. Caulfield | 25 | Daughter | Housekeeper | Pennsylvania |
| 31 | David Koller | 2 | Adopted child | — | Pennsylvania |
| 32 | Thomas Jr. Malone | 37 | Head | City Detective | Pennsylvania |
| 33 | Susan Malone | 27 | Wife | — | Pennsylvania |
| 34 | Marjorie Malone | 4 | Daughter | — | Pennsylvania |
| 35 | Louis Miller THIS PERSON | 42 | Head | Laborer | Pennsylvania |
| 36 | Mary Miller | 38 | Wife | — | Pennsylvania |
| 37 | Louis Jr. Miller | 21 | Son | Laborer | Pennsylvania |
| 38 | Albert M. Smith | 28 | Head | — | Pennsylvania |
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)