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James Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Ross across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Abraham & J — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Ross |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Snowden T |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Clerk (White) |
| Industry | Coal Company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Snowden T |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lorna Jones | Daughter | — | 15 | ~1925 |
| Mary Ross | Daughter | — | 30 | ~1910 |
| J Ross | Head | — | 65 | ~1875 |
| Frances Jones | Other | — | 50 | ~1890 |
| George Ross | Son | — | 27 | ~1913 |
| James Ross | Son | — | 24 | ~1916 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 4
Allegheny, Pennsylvania · implied b. ~1916 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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
Son, age 24
Allegheny-County, Pennsylvania · implied b. ~1916 — 6 household members
| Surname | Ross |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Snowden T |
| 1935 Residence (County) | Allegheny |
| Occupation | Clerk (White) |
| Industry | Coal Company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Abraham Ross (~0.92 confidence) and father J Ross (~0.92 confidence) and father Frank Ross (~0.92 confidence) and mother Bertha Ross (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Abraham Ross
b. ~1874
Source father
● Household
· direct · ~0.92
Father
J Ross
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Frank Ross
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Bertha Ross
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Ross
Son · 1940 · age 24 · b. ~1916 · Pennsylvania
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Sibling
Lorna Jones
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Ross
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Ross
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-03417-00694)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ira S Browns | 53 | Head | Ass'T Supt | Pennsylvania |
| 2 | Ida Mae Browns | 49 | Wife | — | Pennsylvania |
| 3 | Ruth Browns | 17 | Daughter | — | Pennsylvania |
| 4 | Richard Browns | 11 | Son | — | Pennsylvania |
| 5 | Ann Browns | 9 | Daughter | — | Pennsylvania |
| 6 | Clarence Mummert | 42 | Head | Fabric Coord | Pennsylvania |
| 7 | Helen Mummert | 43 | Wife | — | Pennsylvania |
| 8 | Ruth Mummert | 19 | Daughter | Clerk | Pennsylvania |
| 9 | Doris Mummert | 15 | Son | — | Pennsylvania |
| 10 | Marilyn Mummert | 12 | Daughter | — | Pennsylvania |
| 11 | J. Frank Ross | 65 | Head | Office Clerk | Pennsylvania |
| 12 | Mary Ross | 30 | Daughter | Teacher | Pennsylvania |
| 13 | George Ross | 27 | Son | Teacher Principal | Pennsylvania |
| 14 | James Ross THIS PERSON | 24 | Son | Clerk (White) | Pennsylvania |
| 15 | Frances M Jones | 50 | House Keeper | House Keeper | England |
| 16 | Lorna Jones | 15 | Daughter | — | Pennsylvania |
| 17 | Harry Bruce | 46 | Head | Machinist | Pennsylvania |
| 18 | Hannah Bruce | 45 | Wife | — | Pennsylvania |
| 19 | Margaret Bruce | 14 | Daughter | — | Pennsylvania |
| 20 | Albert Hale | 36 | Head | Mechanic | Pennsylvania |
| 21 | Dorothy Hale | 32 | Wife | — | Pennsylvania |
| 22 | Dorothy Hale | 13 | Daughter | — | Pennsylvania |
| 23 | Albert Hale | 11 | Son | — | Pennsylvania |
| 24 | Theodore Hale | 5 | Son | — | Pennsylvania |
| 25 | Wilberforce Lee | 76 | Head | — | England |
| 26 | Frances J. Lee | 73 | Wife | — | England |
| 27 | Mary Ellen Lee | 35 | Daughter | Cleaner | Pennsylvania |
| 28 | Samuel Cortis | 40 | Head | Supt. | Pennsylvania |
| 29 | Angelina Cortis | 31 | Wife | — | Pennsylvania |
| 30 | Samuel Jr. Cortis | 12 | Son | — | Pennsylvania |
| 31 | Camilla Cortis | 3 | Daughter | — | Pennsylvania |
| 32 | John W. Lee | 37 | Head | Armature Winder | England |
| 33 | Louise Lee | 33 | Wife | — | Pennsylvania |
| 34 | John Thomas Lee | 8 | Son | — | Pennsylvania |
| 35 | Henry Miller | 15 | Lodger | — | Pennsylvania |
| 36 | William White | 68 | Head | Armature Winder | Pennsylvania |
| 37 | Katherine White | 54 | Wife | — | Scotland |
| 38 | Anna White | 33 | Daughter | Book Keeper | Pennsylvania |
| 39 | Mary White | 23 | Daughter | Service | Pennsylvania |
| 40 | Bruno Fontanesi | 35 | Son in law | Proprietor | Pennsylvania |
Related Census Records
Pedigree Summary
James + 3 siblings
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)