JF
John Frazier — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Frazier across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Frazier |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkinsburg |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | New Worker |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | New Worker |
| Township / Ward | Wilkinsburg |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Betty Frazier | Daughter | — | 16 | ~1924 |
| John Frazier | Son | — | 21 | ~1919 |
| George Frazier | Other | — | 77 | ~1863 |
| Alberta Frazier | Spouse | — | 53 | ~1887 |
| Jean Frazier | Daughter | — | 14 | ~1926 |
| John Frazier | Head | — | 50 | ~1890 |
| Dorothy Frazier | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age
Allegheny, Pennsylvania · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frazier |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 11
Allegheny, Pennsylvania · implied b. ~1919 — 34 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frazer |
| Given Name | John Jr. |
| Relationship to Head | Son |
| 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
Allegheny-County, Pennsylvania
Son, age 21
Allegheny-County, Pennsylvania · implied b. ~1919 — 7 household members
| Surname | Frazier |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkinsburg |
| 1935 Residence (County) | Allegheny |
| Occupation | New Worker |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 John Frazier across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Frazier (~0.92 confidence) and father John Frazier (~0.92 confidence) and mother Alberta Frazier (~0.92 confidence) and mother Alveta Frazier (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Frazier
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Frazier
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Alberta Frazier
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Alveta Frazier
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Frazier
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Betty Frazier
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Frazier
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Frazier
Sibling · 1940 · 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
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-t0627-03421-00302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Albert | 42 | Head | Laborer | Pennsylvania |
| 42 | Mary Albert | 44 | Wife | — | Pennsylvania |
| 43 | Edward Albert | 21 | Son | Laborer | Pennsylvania |
| 44 | Harry Jr. Albert | 18 | Son | — | Pennsylvania |
| 45 | John M. Frazier | 50 | Head | Machine Hand | Pennsylvania |
| 46 | Alberta Frazier | 53 | Wife | — | Pennsylvania |
| 47 | John L. Frazier THIS PERSON | 21 | Son | New Worker | Pennsylvania |
| 48 | Dorothy Frazier | 19 | Daughter | Clerical | Pennsylvania |
| 49 | Betty Frazier | 16 | Daughter | — | Pennsylvania |
| 50 | Jean Frazier | 14 | Daughter | — | Pennsylvania |
| 51 | George Frazier | 77 | Father | — | Scotland |
| 52 | Joseph Slatry | 52 | Head | Core Builder | Pennsylvania |
| 53 | Verna Slatry | 52 | Wife | — | Pennsylvania |
| 54 | Rudolph S. Hoffman | 28 | Head | Machine Hand | Pennsylvania |
| 55 | Irene Hoffman | 25 | Wife | — | Pennsylvania |
| 56 | Anna Hoffman | 57 | Mother | — | Austria |
| 57 | Emil Hoffman | 24 | Head | Machinist | Pennsylvania |
| 58 | R. Baldwin Hoffman | 22 | Wife | — | Pennsylvania |
| 59 | Samuel R. Bill | 68 | Head | — | Pennsylvania |
| 60 | Samuel E. Bill | 31 | Son | Manager | Pennsylvania |
| 61 | John L. Bill | 28 | Son | Investigator | Pennsylvania |
| 62 | Dorothy Bill | 23 | Daughter-in-law | — | Pennsylvania |
| 63 | Charles Mclane | 62 | Head | — | Pennsylvania |
| 64 | Henrietta Mclane | 62 | Wife | — | Pennsylvania |
| 65 | Thomas H. Barkley | 28 | Head | Teacher | Pennsylvania |
| 66 | Ruth Barkley | 24 | Wife | — | Ohio |
| 67 | John Barkley | 3 | Son | — | Pennsylvania |
| 68 | Thomas H. Buckley | 52 | Head | Horse Shoer | Pennsylvania |
| 69 | Agnes Buckley | 47 | Wife | — | Scotland |
| 70 | Anne A. Buckley | 25 | Daughter | Clerical | Pennsylvania |
| 71 | Agnes Buckley | 17 | Daughter | Clerical | Pennsylvania |
| 72 | Frank J. Bayer | 47 | Head | Laborer | Pennsylvania |
| 73 | Mary H. Bayer | 49 | Wife | — | Pennsylvania |
| 74 | Fenton Whildon | 28 | Head | Welder | Pennsylvania |
| 75 | Bernice Whildon | 23 | Wife | — | Pennsylvania |
| 76 | Charles Bayer | 25 | Roomer | Mechanic | Pennsylvania |
| 77 | William Bayer | 37 | Roomer | Laborer | Pennsylvania |
| 78 | John Corbett | 41 | Head | Supervisor | Pennsylvania |
| 79 | Laura Corbett | 33 | Wife | — | Pennsylvania |
| 80 | Betty Jane Corbett | 13 | Daughter | — | Pennsylvania |
Pedigree Summary
John + 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)