JM
John Mckee — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Mckee across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | McKee |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mifflin Twp |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Engineer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Engineer |
| Township / Ward | Mifflin Twp |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Mckee | Spouse | — | 47 | ~1893 |
| Robert Mckee | Son | — | 16 | ~1924 |
| John Mckee | Son | — | 22 | ~1918 |
| John Mckee | Head | — | 52 | ~1888 |
| William Mckee | Son | — | 19 | ~1921 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackie |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 5 household members
| Surname | McKee |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mifflin Twp |
| 1935 Residence (County) | Allegheny |
| Occupation | Engineer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | C 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 John Mckee across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mckee
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
William Mckee
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mckee
Sibling · 1940 · age 16
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-t0627-03410-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma Gillespie | 50 | Head | — | Pennsylvania |
| 2 | Louise Ambrose | 50 | Sister | — | Pennsylvania |
| 3 | Maud Armstrong | 16 | Niece | — | Pennsylvania |
| 4 | Samuel H. Neel | 77 | Head | — | Pennsylvania |
| 5 | Lillie O. Neel | 71 | Wife | — | Pennsylvania |
| 6 | Helen M. Neel | 48 | Daughter | Stenographer | Pennsylvania |
| 7 | Eugene D. Rowse | 41 | Son in Law | Pharmacist | Pennsylvania |
| 8 | Virginia B. Rowse | 41 | Daughter | — | Pennsylvania |
| 9 | John Crews | 50 | Head | Iron Melter | Missouri |
| 10 | Lucy Crews | 49 | Wife | — | Missouri |
| 11 | Fred Crews | 24 | Son | Loader | Missouri |
| 12 | Bertha Crews | 21 | Daughter | Server | Missouri |
| 13 | John D. Mckee | 52 | Head | Book-Keeper | Pennsylvania |
| 14 | Beatrice Mckee | 47 | Wife | — | Pennsylvania |
| 15 | John E. Mckee THIS PERSON | 22 | Son | Engineer | Pennsylvania |
| 16 | William Mckee | 19 | Son | — | Pennsylvania |
| 17 | Robert E. Mckee | 16 | Son | — | Pennsylvania |
| 18 | John Livingstone | 78 | Head | — | Pennsylvania |
| 19 | Sarah Livingstone | 50 | Daughter | Teacher | Pennsylvania |
| 20 | Margaret Livingstone | 40 | Daughter | Teacher | Pennsylvania |
| 21 | Anne Livingstone | 19 | Daughter | — | Pennsylvania |
| 22 | Charles W. Challener | 68 | Head | — | Pennsylvania |
| 23 | Anne Challener | 65 | Wife | — | Pennsylvania |
| 24 | John Challener | 38 | Son | Shipper | Pennsylvania |
| 25 | Mary Challener | 37 | Daughter | Book-Keeper | Pennsylvania |
| 26 | Virginia Challener | 30 | Daughter | — | Pennsylvania |
| 27 | Ralph Challener | 24 | Son | Inspector | Pennsylvania |
| 28 | Helen Carlson | 12 | Granddaughter | — | Pennsylvania |
| 29 | George Thompson | 32 | Head | Operator | Pennsylvania |
| 30 | Mattie Thompson | 59 | Mother | — | Virginia |
| 31 | Thomas Thompson | 65 | Father | — | Pennsylvania |
| 32 | Esther Stalley | 67 | Head | — | Pennsylvania |
| 33 | Thaddeus Mussman | 40 | Head | Merchant | Pennsylvania |
| 34 | Rosemarie Mussman | 33 | Wife | — | Pennsylvania |
| 35 | Thaddeus Mussman | 2 | Son | — | Pennsylvania |
| 36 | Alice Mussman | 2 | Daughter | — | Pennsylvania |
| 37 | Ethel Nunimaker | 56 | Friend | — | Pennsylvania |
| 38 | James H. Knight | 57 | Head | Clerk | Pennsylvania |
| 39 | Mary E. Knight | 62 | Wife | — | Pennsylvania |
| 40 | Harry Bruce | 36 | Head | Principal | 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)