JT
James Thompson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this James Thompson across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Margaret — first a son (b.~1899), then head of a 5-person household.
Age 21
b. ~1899
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Penn Township |
| Est. Birth Year | ~1899 |
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 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lydia Thompson | Daughter | — | 19 | ~1901 |
| Hannah Thompson | Daughter | — | 14 | ~1906 |
| John Thompson | Head | — | 75 | ~1845 |
| James Thompson | Son | — | 21 | ~1899 |
| Margaret Thompson | Spouse | — | 54 | ~1866 |
Census Appearances
1900
Allegheny, Pennsylvania
Son, age 2
Allegheny, Pennsylvania · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Mar |
| Birth Year | 1898 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1898 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 21
Allegheny, Pennsylvania · implied b. ~1899 — 5 household members
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Thompson across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father John Thompson (~0.92 confidence) and mother Margaret Thompson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thompson
b. ~1845
Source father
● Household
· direct · ~0.92
Mother
Margaret Thompson
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Thompson
Son · 1920 · age 21 · b. ~1899 · Pennsylvania
★ You are viewing this record
Sibling
Hannah Thompson
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lydia Thompson
Sibling · 1920 · age 19
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
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1516unit:0582)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Eva Groves | 6 | Daughter | — | Pennsylvania |
| 52 | Herbert Groves | 2 | Son | — | Pennsylvania |
| 53 | Christina Harmel | 69 | Head | — | Germany |
| 54 | Oscar Harmel | 41 | Son | Dairyman | Pennsylvania |
| 55 | Henry Harmel | 41 | Son | Dairyman | Pennsylvania |
| 56 | Millie Harmel | 24 | Daughter | — | Pennsylvania |
| 57 | David A. Mills | 38 | Head | Painter | Pennsylvania |
| 58 | Mary J. Mills | 30 | Wife | — | Pennsylvania |
| 59 | Margaret Mills | 12 | Daughter | — | Pennsylvania |
| 60 | James H. Mills | 10 | Son | — | Pennsylvania |
| 61 | Daniel Mills | 1 | Son | — | Pennsylvania |
| 62 | Joe G. Nichols | 28 | Brother-in-law | Painter | Pennsylvania |
| 63 | Walter C. Kendall | 45 | Head | Laborer | Virginia |
| 64 | Lulu Kendall | 27 | Wife | — | Virginia |
| 65 | Howard Kendall | 16 | Son | — | Virginia |
| 66 | Margaret Kendall | 12 | Daughter | — | Virginia |
| 67 | Ruth Kendall | 7 | Daughter | — | Pennsylvania |
| 68 | Alice Kendall | 1 | Daughter | — | Pennsylvania |
| 69 | Frederick Dunely | 45 | Head | Tool Maker | England |
| 70 | Emily Dunely | 39 | Wife | — | England |
| 71 | Fred C. Dunely | 17 | Son | — | Virginia |
| 72 | Leroy Dunely | 17 | Son | Tracer | Virginia |
| 73 | Phillip Brehm | 40 | Head | Laborer | Germany |
| 74 | Mary Brehm | 39 | Wife | — | Pennsylvania |
| 75 | Phillip Jr. Brehm | 11 | Son | — | Pennsylvania |
| 76 | Mary G. Brehm | 9 | Daughter | — | Pennsylvania |
| 77 | William Brehm | 2 | Son | — | Pennsylvania |
| 78 | Cornelius Mcdonough | 84 | Head | — | Scotland |
| 79 | Mary A. Mcdonough | 73 | Wife | — | Scotland |
| 80 | Hellen Sylvia | 52 | Head | — | Pennsylvania |
| 81 | John Thompson | 75 | Head | — | Scotland |
| 82 | Margaret Thompson | 54 | Wife | — | Scotland |
| 83 | James Thompson THIS PERSON | 21 | Son | Laborer | Pennsylvania |
| 84 | Lydia Thompson | 19 | Daughter | Clerk | Pennsylvania |
| 85 | Hannah Thompson | 14 | Daughter | — | Pennsylvania |
| 86 | William Norris | 42 | Head | Laborer | Pennsylvania |
| 87 | Nellie Norris | 39 | Wife | — | Pennsylvania |
| 88 | Helen Norris | 16 | Daughter | Salesgirl | Pennsylvania |
| 89 | Lilly Norris | 14 | Daughter | — | Pennsylvania |
| 90 | Harold Norris | 12 | Son | — | Pennsylvania |
| 91 | Cass Norris | 7 | Son | — | Pennsylvania |
| 92 | Carl Norris | 3 | Son | — | Pennsylvania |
| 93 | David Mcclintock | 51 | Head | Laborer | Pennsylvania |
| 94 | Kate Mcclintock | 51 | Wife | — | Germany |
| 95 | David Jr. Mcclintock | 21 | Son | Insurance | Pennsylvania |
| 96 | Florence Mcclintock | 17 | Daughter | Operator | Pennsylvania |
| 97 | Charles Bunts | 33 | Head | Policeman | New York |
| 98 | Margaret Bunts | 32 | Wife | — | Pennsylvania |
| 99 | Edward Range | 39 | Head | Butcher | Bohemia |
| 100 | Louise Range | 33 | Wife | — | Luxemburg |
Pedigree Summary
James + 2 siblings
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 1920 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)