JM
James Mills — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Mills across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Cora & David — first a son (b.~1911), then head of a 2-person household.
Age 29
b. ~1911
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Mills |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Ross Twp |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | laborer |
| Industry | county government |
| Class of Worker | GW |
| Hours Worked | 16 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Ross 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Cora Mills | Head | — | 60 | ~1880 |
| James Mills | Son | — | 29 | ~1911 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Son, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | James H |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 29
Allegheny-County, Pennsylvania · implied b. ~1911 — 2 household members
| Surname | Mills |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Ross Twp |
| 1935 Residence (County) | Allegheny |
| Occupation | laborer |
| Industry | county government |
| Class of Worker | GW |
| Hours Worked | 16 |
| Income (1939) | 1000 |
| 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 James Mills across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Cora Mills (~0.92 confidence) and father David Mills (~0.92 confidence) and father Nathaniel Mills (~0.92 confidence) and mother Mary Mills (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Cora Mills
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
David Mills
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Nathaniel Mills
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mary Mills
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mills
Son · 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-t0627-03416-00369)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Coleman | 3 | Son | — | Pennsylvania |
| 2 | William Truman | 34 | Head | Automobile Mechanic | Pennsylvania |
| 3 | Helen R. Truman | 29 | Wife | — | New York |
| 4 | Eileen C. Truman | 6 | Daughter | — | Pennsylvania |
| 5 | William J. Truman | 4 | Son | — | Pennsylvania |
| 6 | Mary A. Mccarthy | 46 | Head | — | Pennsylvania |
| 7 | Rita Mae Mccarthy | 22 | Daughter | Assembler | Pennsylvania |
| 8 | Paul M. Mccarthy | 20 | Son | Apprentice In Machine Shop | Pennsylvania |
| 9 | Mary L. Mccarthy | 19 | Daughter | Clerk | Pennsylvania |
| 10 | James J. Rocha | 35 | Head | Laborer | Pennsylvania |
| 11 | Mary A. Rocha | 26 | Wife | — | Pennsylvania |
| 12 | Margaret E. Rocha | 73 | Mother | — | Wales |
| 13 | Frank J. Winterhalter | 34 | Head | Grinder | Pennsylvania |
| 14 | Cecilia R. Winterhalter | 33 | Wife | — | Pennsylvania |
| 15 | Lois C. Winterhalter | 9 | Daughter | — | Pennsylvania |
| 16 | Cecilia A. Winterhalter | 7 | Daughter | — | Pennsylvania |
| 17 | Celine J. Winterhalter | 1 | Daughter | — | Pennsylvania |
| 18 | Rose T. Fabig | 53 | Head | Housework | Germany |
| 19 | Laura M. Fabig | 26 | Daughter | — | Pennsylvania |
| 20 | Edward J. Fabig | 26 | Son-in-law | Milk Salesman | Pennsylvania |
| 21 | Edward J. Jr. Fabig | 1 | Grandson | — | Pennsylvania |
| 22 | Arlie M. Trall | 45 | Head | Journal Clerk | Pennsylvania |
| 23 | Anna M. Trall | 39 | Wife | — | Pennsylvania |
| 24 | Howard A. Trall | 14 | Son | — | Pennsylvania |
| 25 | William E. Trall | 8 | Son | — | Pennsylvania |
| 26 | Samuel Morrison | 54 | Head | Watchman | Pennsylvania |
| 27 | Anna Morrison | 53 | Wife | — | Pennsylvania |
| 28 | John Morrison | 25 | Son | Apprentice | Pennsylvania |
| 29 | Cora May Mills | 60 | Head | — | Pennsylvania |
| 30 | James H. Mills THIS PERSON | 29 | Son | Laborer | Pennsylvania |
| 31 | Harry E. Anderson | 52 | Head | Bricklayer | Pennsylvania |
| 32 | Ellen M. Anderson | 49 | Wife | — | Pennsylvania |
| 33 | Jean M. Anderson | 17 | Daughter | Machine Helper | Pennsylvania |
| 34 | Ruth M. Nebel | 21 | Daughter | — | Pennsylvania |
| 35 | Anthony A. Payers | 52 | Head | Laborer | Pennsylvania |
| 36 | Anna M. Payers | 49 | Wife | — | Pennsylvania |
| 37 | Walter J. Payers | 25 | Son | Laborer | Pennsylvania |
| 38 | Martha A. Payers | 19 | Daughter | Typist | Pennsylvania |
| 39 | John A. Payers | 15 | Son | — | Pennsylvania |
| 40 | Edward F. Payers | 13 | Son | — | Pennsylvania |
Pedigree Summary
James
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)