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George Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this George Blair across the 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 11-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Blair |
| Given Name | George H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bala |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Upholsterer |
| Industry | Own business |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 364 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Upholsterer |
| Township / Ward | Bala |
| Est. Birth Year | ~1919 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Edwin Blair | Head | — | 49 | ~1891 |
| Blanche Blair | Son | — | 19 | ~1921 |
| Grace Blair | Daughter | — | 18 | ~1922 |
| Wayne Blair | Son | — | 13 | ~1927 |
| George Blair | Son | — | 21 | ~1919 |
| Wm Blair | Son | — | 22 | ~1918 |
| Edwin Blair | Son | — | 26 | ~1914 |
| Viola Blair | Spouse | — | 49 | ~1891 |
| John Blair | Son | — | 16 | ~1924 |
| Viola Blair | Daughter | — | 11 | ~1929 |
| Harry Blair | Son | — | 15 | ~1925 |
Census Appearances
1930
Philadelphia, Pennsylvania
Other, age 11
Philadelphia, Pennsylvania · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | George |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Montgomery-County, Pennsylvania
Son, age 21
Montgomery-County, Pennsylvania · implied b. ~1919 — 11 household members
| Surname | Blair |
| Given Name | George H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bala |
| 1935 Residence (County) | Montgomery |
| Occupation | Upholsterer |
| Industry | Own business |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 364 |
| 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 George Blair across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
George Blair
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Edwin Blair
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Blair
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Blair
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Blair
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Blair
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wayne Blair
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Blair
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wm Blair
Sibling · 1940 · age 22
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 — Montgomery-County, Pennsylvania
Open full size
1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03580-01066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jean Pratt | 15 | Daughter | — | Massachusetts |
| 2 | Isaac H. Pratt | 52 | Head | Broker | Connecticut |
| 3 | Betty Pratt | 46 | Wife | — | North Carolina |
| 4 | I. Hale Jr. Pratt | 21 | Son | — | Connecticut |
| 5 | Katharine Mitchell | 58 | Head | — | Pennsylvania |
| 6 | Edwin J. Blair | 49 | Head | Assistant | Pennsylvania |
| 7 | Viola M. Blair | 49 | Wife | — | Pennsylvania |
| 8 | Edwin Jr. Blair | 26 | Son | Accountant | Pennsylvania |
| 9 | Wm. L. Blair | 22 | Son | Press Operator | Pennsylvania |
| 10 | George H. Blair THIS PERSON | 21 | Son | Upholsterer | Pennsylvania |
| 11 | Blanche P. Blair | 19 | Son | — | Pennsylvania |
| 12 | Grace Blair | 18 | Daughter | — | Pennsylvania |
| 13 | John E. Blair | 16 | Son | — | Pennsylvania |
| 14 | Harry M. Blair | 15 | Son | — | Pennsylvania |
| 15 | Wayne B. Blair | 13 | Son | — | Pennsylvania |
| 16 | Viola Blair | 11 | Daughter | — | Pennsylvania |
| 17 | Agnes A. Knifer | 29 | Head | Dyeing | Pennsylvania |
| 18 | Laura Knifer | 26 | Wife | — | Pennsylvania |
| 19 | Jennifer Knifer | 2 | Son | — | Pennsylvania |
| 20 | Edw. J. Spencer | 39 | Lodger | Salesman | Pennsylvania |
| 21 | Horace W. Bernstein | 50 | Head | President | Pennsylvania |
| 22 | Annie C. Bernstein | 47 | Wife | — | Pennsylvania |
| 23 | Wm. C. Culverhouse | 75 | Father-in-law | — | England |
| 24 | Howard K. Mathews | 45 | Head | Dentist | Pennsylvania |
| 25 | Anna Mae Mathews | 43 | Wife | Dentist | Pennsylvania |
| 26 | Marcia Mathews | 18 | Daughter | — | Pennsylvania |
| 27 | Dorothy Mathews | 13 | Daughter | — | Pennsylvania |
| 28 | Laupetta Jones | 36 | Servant | Gen. Housework | Pennsylvania |
| 29 | Walter H. Wild | 49 | Head | Sales Manager | Pennsylvania |
| 30 | Grace C. Wild | 49 | Wife | — | Pennsylvania |
| 31 | Virginia A. Wild | 22 | Daughter | — | Pennsylvania |
| 32 | Richard F. Estes | 28 | Head | Buyer | Massachusetts |
| 33 | Leonora S. Estes | 27 | Wife | — | Maine |
| 34 | Richard F. Jr. Estes | 3 | Son | — | Massachusetts |
| 35 | Margaret S. Estes | 2 | Daughter | — | Massachusetts |
| 36 | Katherine Roche | 75 | Head | — | Canada English |
| 37 | Marguerite Roche | 70 | Sister | — | Canada English |
| 38 | Helen R. Reilly | 65 | Sister | — | Canada English |
| 39 | John W. Witherspoon | 37 | Head | Executive | Pennsylvania |
| 40 | Ruth E. Witherspoon | 35 | Wife | — | Pennsylvania |
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)