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Mary Miller — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Miller across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a spouse (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Miller |
| Given Name | Mary R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Plum Twp |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Plum Twp |
| Est. Birth Year | ~1911 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frances Miller | Daughter | — | 7 | ~1933 |
| Byron Miller | Head | — | 32 | ~1908 |
| Josephine Kubal | Other | — | 33 | ~1907 |
| William Miller | Son | — | 6 | ~1934 |
| Mary Miller | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 8
Allegheny, Pennsylvania · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 18
Allegheny, Pennsylvania · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 29
Allegheny-County, Pennsylvania · implied b. ~1911 — 5 household members
| Surname | Miller |
| Given Name | Mary R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Plum Twp |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 4 |
| 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 Mary Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Miller (~0.92 confidence) and father John Miller (~0.92 confidence) and mother Mary Miller (~0.92 confidence) and mother Mary Miller (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Miller
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Miller
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mary Miller
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Mary Miller
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Miller
Spouse · 1940 · age 29 · b. ~1911 · Pennsylvania
★ You are viewing this record
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
40 people indexed on this census page (nara:1940:m-t0627-03415-00214)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert M Edwards | 37 | Head | Shot-Firer | Pennsylvania |
| 2 | Ida A Edwards | 32 | Wife | — | Pennsylvania |
| 3 | William J Edwards | 11 | Son | — | Pennsylvania |
| 4 | Norma Jean Edwards | 9 | Daughter | — | Pennsylvania |
| 5 | D. James Edwards | 5 | Son | — | Pennsylvania |
| 6 | Mary Jane Edwards | 3 | Daughter | — | Pennsylvania |
| 7 | Vandella Ann Edwards | 2 | Daughter | — | Pennsylvania |
| 8 | William Heckman | 40 | Head | Repairman | Pennsylvania |
| 9 | Marie S Heckman | 39 | Wife | — | Pennsylvania |
| 10 | John Heckman | 20 | Son | Laborer | Pennsylvania |
| 11 | Donald Heckman | 19 | Son | New Worker | Pennsylvania |
| 12 | Gladys Heckman | 16 | Daughter | — | Pennsylvania |
| 13 | William Heckman | 12 | Son | — | Pennsylvania |
| 14 | William Couch | 55 | Head | Fireman | Pennsylvania |
| 15 | Sarah E Couch | 54 | Wife | — | Pennsylvania |
| 16 | Myles Couch | 25 | Son | Boiler Helper | Pennsylvania |
| 17 | Samuel Couch | 21 | Son | New Worker | Pennsylvania |
| 18 | Robert Couch | 12 | Son | — | Pennsylvania |
| 19 | Alice Couch | 11 | Daughter | — | Pennsylvania |
| 20 | William Couch | 23 | Head | Stone Breaker | Pennsylvania |
| 21 | Mae D Couch | 20 | Wife | — | Pennsylvania |
| 22 | Joyce Couch | 0 | Daughter | — | Pennsylvania |
| 23 | William Kelsey | 65 | Head | Metal Sawyer | Pennsylvania |
| 24 | Vivian Skinner | 31 | Daughter | — | Pennsylvania |
| 25 | Jack Skinner | 13 | Grandson | — | Pennsylvania |
| 26 | Richard Skinner | 6 | Grandson | — | Pennsylvania |
| 27 | Peter B Vonlohlager | 61 | Head | Engineer | Pennsylvania |
| 28 | Ruby Q Vonlohlager | 50 | Wife | — | Pennsylvania |
| 29 | Annabell Vonlohlager | 28 | Daughter | Waitress | Pennsylvania |
| 30 | Samuel Scruggs | 64 | Head | Stone Breaker | Tennessee |
| 31 | Mayme Scruggs | 60 | Wife | — | Pennsylvania |
| 32 | Joseph Fisher | 74 | Head | — | Pennsylvania |
| 33 | Martin Hronec | 65 | Head | Mechanic | Czechoslovakia |
| 34 | Helen Hronec | 58 | Wife | — | Czechoslovakia |
| 35 | John Hronec | 14 | Son | — | Pennsylvania |
| 36 | Byron Miller | 32 | Head | Motorman | Pennsylvania |
| 37 | Mary R Miller THIS PERSON | 29 | Wife | — | Pennsylvania |
| 38 | William Miller | 6 | Son | — | Pennsylvania |
| 39 | Frances A Miller | 7 | Daughter | — | Pennsylvania |
| 40 | Josephine Kubal | 33 | Boarder | Inspector | Pennsylvania |
Pedigree Summary
Mary
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)