JB
James Blair — 1920 US Census Record
Model Tree available1920 United States Federal Census · Montgomery, Pennsylvania
Our Model Tree links this James Blair across the 1900, 1910 and 1920 US Censuses in Montgomery, Pennsylvania (XGBoost, ~Confirmed), with identified parents Humphrey & Eliza — first a son (b.~1900), then head of a 10-person household.
Age 20
b. ~1900
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Montgomery, Pennsylvania |
| Surname | Blair |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Paper 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 | Upper Merion Township Gulph District |
| Est. Birth Year | ~1900 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Blair | Daughter | — | 6 | ~1914 |
| Eliza Blair | Daughter | — | 9 | ~1911 |
| James Blair | Head | — | 43 | ~1877 |
| Edward Mishina | Other | — | 18 | ~1902 |
| Charles Blair | Son | — | 4 | ~1916 |
| Violet Blair | Daughter | — | 17 | ~1903 |
| Donald Blair | Son | — | 15 | ~1905 |
| James Blair | Son | — | 20 | ~1900 |
| Ida Blair | Daughter | — | 1 | ~1919 |
| Eliza Blair | Spouse | — | 43 | ~1877 |
Census Appearances
1900
Montgomery, Pennsylvania
Son, age 1
Montgomery, Pennsylvania · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | May |
| Birth Year | 1899 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Montgomery, Pennsylvania
Son, age 10
Montgomery, Pennsylvania · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | James G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Montgomery, Pennsylvania
Son, age 20
Montgomery, Pennsylvania · implied b. ~1900 — 10 household members
| Surname | Blair |
| Given Name | James |
| 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 | Laborer |
| Industry | Paper 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 Blair across 3 US Census years (1900, 1910 and 1920) in Montgomery, Pennsylvania, using XGBoost record linkage. Identified parents: father Humphrey Blair (~0.92 confidence) and mother Eliza Blair (~0.92 confidence) and mother Eliza Blair (~0.92 confidence) and father James Blair (~0.92 confidence) and father Samuel Blair (~0.92 confidence) and mother Ethel Blair (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Humphrey Blair
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Eliza Blair
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Eliza Blair
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
James Blair
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Samuel Blair
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Ethel Blair
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Blair
Son · 1920 · age 20 · b. ~1900 · Pennsylvania
★ You are viewing this record
Sibling
Violet Blair
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Blair
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Blair
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Blair
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Blair
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eliza Blair
Sibling · 1920 · age 9
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 — Montgomery, Pennsylvania
Open full size
1920 US Federal Census — Montgomery, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1606unit:0623)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frank W. Taylor | 25 | Head | Painter | Pennsylvania |
| 52 | Lizzie M. Taylor | 28 | Wife | — | Pennsylvania |
| 53 | Annie M. Taylor | 9 | Daughter | — | Pennsylvania |
| 54 | Dorothy Taylor | 5 | Daughter | — | Pennsylvania |
| 55 | Francis Jr. Taylor | 2 | Son | — | Pennsylvania |
| 56 | Arthur Taylor | 0 | Son | — | Pennsylvania |
| 57 | James Blair | 43 | Head | Laborer | Pennsylvania |
| 58 | Eliza J. Blair | 43 | Wife | — | Pennsylvania |
| 59 | James Blair THIS PERSON | 20 | Son | Laborer | Pennsylvania |
| 60 | Violet E. Blair | 17 | Daughter | Cutter | Pennsylvania |
| 61 | Donald E. Blair | 15 | Son | Laborer | Pennsylvania |
| 62 | Eliza J. Blair | 9 | Daughter | — | Pennsylvania |
| 63 | Mary E. Blair | 6 | Daughter | — | Pennsylvania |
| 64 | Charles E. Blair | 4 | Son | — | Pennsylvania |
| 65 | Ida M. Blair | 1 | Daughter | — | Pennsylvania |
| 66 | Edward Mishina | 18 | Boarder | Loader | Pennsylvania |
| 67 | Andrew Killegan | 27 | Head | Laborer | Pennsylvania |
| 68 | Mary E. Killegan | 22 | Wife | — | Pennsylvania |
| 69 | Henry E. Killegan | 1 | Son | — | Pennsylvania |
| 70 | Ethel L. Killegan | 0 | Daughter | — | Pennsylvania |
| 71 | John C. Fields | 38 | Head | Machinist | New Jersey |
| 72 | Sarah Fields | 79 | Mother | — | New Jersey |
| 73 | Raymond H. Fields | 22 | Nephew | Laborer | New Jersey |
| 74 | Robert E. Shore | 48 | Head | Laborer | Pennsylvania |
| 75 | Catherine Shore | 48 | Wife | — | Pennsylvania |
| 76 | June A. Shore | 24 | Son | Blacksmith Helper | Pennsylvania |
| 77 | Raymond J. Shore | 18 | Son | Laborer | Pennsylvania |
| 78 | Bertram A. Faillsworth | 38 | Head | Shipper | Pennsylvania |
| 79 | Anna E. Faillsworth | 30 | Wife | — | Pennsylvania |
| 80 | Albert H. Faillsworth | 10 | Son | — | Pennsylvania |
| 81 | Mildred A. Faillsworth | 8 | Daughter | — | Pennsylvania |
| 82 | John R. Bloom | 32 | Head | Weaver | Pennsylvania |
| 83 | Rose Bloom | 28 | Wife | — | Pennsylvania |
| 84 | John R. Jr. Bloom | 5 | Son | — | Pennsylvania |
| 85 | May B. Bloom | 1 | Daughter | — | Pennsylvania |
| 86 | Elizabeth Mc Gettigan | 50 | Head | Weaver | Pennsylvania |
| 87 | Mary Mc Gettigan | 46 | Sister | — | Pennsylvania |
| 88 | Joseph Mc Gettigan | 36 | Nephew | Weaver | Pennsylvania |
| 89 | George H. Shaffer | 34 | Head | Machinist | Pennsylvania |
| 90 | Harriet Shaffer | 28 | Wife | — | Pennsylvania |
| 91 | Edith Shaffer | 9 | Daughter | — | Pennsylvania |
| 92 | Gladys Shaffer | 7 | Daughter | — | Pennsylvania |
| 93 | Dorothy Shaffer | 5 | Daughter | — | Pennsylvania |
| 94 | George Jr. Shaffer | 2 | Son | — | Pennsylvania |
| 95 | Annie M. Mc Donell | 68 | Mother in law | — | Pennsylvania |
| 96 | Leopold J. Koons | 28 | Head | Machinist | Pennsylvania |
| 97 | Ida F. Koons | 27 | Wife | — | Pennsylvania |
| 98 | Lillian M. Koons | 7 | Daughter | — | Pennsylvania |
| 99 | Leopold W. Koons | 6 | Son | — | Pennsylvania |
| 100 | Grace H. Koons | 4 | Daughter | — | Pennsylvania |
Pedigree Summary
James + 6 siblings
Gen 1 · 6 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)