JM
James Montgomery — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Montgomery across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents James & Janet — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Wilkinsburg |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | 40 |
| Industry | Clerk |
| Class of Worker | Engineering Co |
| Highest Grade | H 4 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | 40 |
| Township / Ward | Wilkinsburg |
| Est. Birth Year | ~1909 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Barbara Montgomery | Daughter | — | 2 | ~1938 |
| James Montgomery | Head | — | 31 | ~1909 |
| James Montgomery | Son | — | 5 | ~1935 |
| Hilda Montgomery | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 11
Allegheny, Pennsylvania · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1911 |
| Naturalization Status | un |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | un |
| Birthplace (normalized) | scotland |
1930
Allegheny, Pennsylvania
Son, age 21
Allegheny, Pennsylvania · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1909 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerk |
| Industry | Electric Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegheny-County, Pennsylvania
Head, age 31
Allegheny-County, Pennsylvania · implied b. ~1909 — 4 household members
| Surname | Montgomery |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Wilkinsburg |
| Naturalization Status | Naturalized |
| Occupation | 40 |
| Industry | Clerk |
| Class of Worker | Engineering Co |
| Highest Grade | H 4 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Montgomery across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Montgomery (~0.92 confidence) and mother Janet Montgomery (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Montgomery
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Janet Montgomery
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Montgomery
Head · 1940 · age 31 · b. ~1909 · 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-t0627-03421-00594)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Andrea Heywood | 3 | Daughter | Same Place | Penna |
| 42 | Iroon Hovart | 31 | Head | Same Place | Penna |
| 43 | Irene Hovart | 30 | Wife | Same Place | Penna |
| 44 | Thomas Betts | 34 | Head | 60 | Penna |
| 45 | Esther Betts | 32 | Wife | — | Penna |
| 46 | Nancy Betts | 8 | Daughter | — | Penna |
| 47 | Susan Betts | 7 | Daughter | — | Penna |
| 48 | Barbara Betts | 6 | Daughter | — | Penna |
| 49 | Talmage Willis | 40 | Head | Same House | Tennessee |
| 50 | Frances Willis | 30 | Wife | Same House | Penna |
| 51 | Vivian Willis | 11 | Daughter | Same House | Ohio |
| 52 | Talmage Willis | 9 | Son | Same House | Penna |
| 53 | James Montgomery THIS PERSON | 31 | Head | 40 | Scotland |
| 54 | Hilda Montgomery | 27 | Wife | Same House | Penna |
| 55 | James Jr. Montgomery | 5 | Son | Same House | Penna |
| 56 | Barbara Jean Montgomery | 2 | Daughter | Same House | Penna |
| 57 | M. George Mcdougall | 34 | Head | Same Place | Penna |
| 58 | Margaret Mcdougall | 29 | Wife | Same Place | Penna |
| 59 | Harry Wolfe | 31 | Head | Same Place | Penna |
| 60 | Alice Wolfe | 29 | Wife | Same Place | Penna |
| 61 | Mary Lou Wolfe | 4 | Daughter | Same Place | Penna |
| 62 | Richard Wolfe | 2 | Son | Same Place | Penna |
| 63 | R. Melvin Gerber | 45 | Head | 40 | Penna |
| 64 | Alberta Gerber | 45 | Wife | — | Penna |
| 65 | Conrad Mail | 57 | Head | Same Place | Ohio |
| 66 | Martha Mail | 51 | Wife | Same Place | Penna |
| 67 | Oliver Price | 48 | Head | Same House | Penna |
| 68 | Lorretta Price | 41 | Wife | Same House | Penna |
| 69 | Murray Price | 20 | Son | Same House | Penna |
| 70 | Kenneth Price | 12 | Son | Same House | Penna |
| 71 | Edwin Dattiman | 31 | Head | — | Penna |
| 72 | Virginia Dattiman | 24 | Wife | — | Penna |
| 73 | A. R. Beaulieu | 38 | Head | Same Place | Vermont |
| 74 | Florence Beaulieu | 36 | Wife | Same Place | Vermont |
| 75 | Florence Jean Beaulieu | 4 | Daughter | Same Place | Penna |
| 76 | Allen Judson Beaulieu | 5 | Son | Same Place | Penna |
| 77 | Anthony Cassell | 47 | Head | Same House | Penna |
| 78 | Clara Cassell | 46 | Wife | — | England |
| 79 | Catherine Cassell | 17 | Daughter | Same House | Penna |
| 80 | Donald Williamson | 36 | Head | 40 | West Virginia |
Pedigree Summary
James
Gen 1 · 2 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)