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John Macdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Macdonald across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 5-person household.
Age 51
b. ~1889
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | MacDonald |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Engineer |
| Industry | Sanitary |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 3 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Engineer |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| John Macdonald | Head | — | 51 | ~1889 |
| Robert Macdonald | Son | — | 17 | ~1923 |
| Margaret Macdonald | Daughter | — | 15 | ~1925 |
| Margaret Macdonald | Spouse | — | 47 | ~1893 |
| John Macdonald | Son | — | 21 | ~1919 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 29
Philadelphia, Pennsylvania · implied b. ~1891
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | MacDonald |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1911 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Asst. Supt. |
| Industry | Ship building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Philadelphia, Pennsylvania
Head, age 39
Philadelphia, Pennsylvania · implied b. ~1891 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 27 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Engineer |
| Industry | Dairy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 45.00 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Philadelphia-County, Pennsylvania
Head, age 51
Philadelphia-County, Pennsylvania · implied b. ~1889 — 5 household members
| Surname | MacDonald |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Occupation | Engineer |
| Industry | Sanitary |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 3 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Macdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Macdonald
Head · 1940 · age 51 · b. ~1889 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03727-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Juliana Mcvay | 16 | Daughter | — | Penna |
| 2 | Marie Mcvay | 14 | Daughter | — | Penna |
| 3 | Catherine O'Neill | 11 | Daughter | — | Penna |
| 4 | James O'Neill | 10 | Son | — | Penna |
| 5 | Robert O'Neill | 8 | Son | — | Penna |
| 6 | Margaret O'Neill | 6 | Daughter | — | Penna |
| 7 | Ann O'Neill | 3 | Daughter | — | Penna |
| 8 | John Macdonald THIS PERSON | 51 | Head | Engineer | Scotland |
| 9 | Margaret Macdonald | 47 | Wife | — | New York |
| 10 | John Jr Macdonald | 21 | Son | Salesman | Penna |
| 11 | Robert Macdonald | 17 | Son | — | Penna |
| 12 | Margaret Macdonald | 15 | Daughter | — | Penna |
| 13 | Harry Busch | 40 | Head | Printer | Penna |
| 14 | Beatrice E Busch | 41 | Wife | — | Penna |
| 15 | Shirley Busch | 8 | Daughter | — | Penna |
| 16 | Harry Jr Busch | 5 | Son | — | Penna |
| 17 | John Crouse | 37 | Brother in Law | Assistant | Penna |
| 18 | Margaret Crouse | 23 | Sister in Law | — | England |
| 19 | James Kramer | 48 | Head | Pharmacist | Penna |
| 20 | Florence Kramer | 45 | Wife | Clerk | Canada |
| 21 | Zelda Kramer | 12 | Daughter | — | Penna |
| 22 | Ida Kramer | 74 | Mother | — | Lithuania |
| 23 | Sydney Yosche | 40 | Head | Mechanic | Canada |
| 24 | Elizabeth Yosche | 37 | Wife | — | Penna |
| 25 | Marilyn Yosche | 6 | Daughter | — | Penna |
| 26 | Henry Jr Beyerle | 37 | Head | Pay Master | Penna |
| 27 | Emma Beyerle | 33 | Wife | — | Penna |
| 28 | Claire Beyerle | 12 | Daughter | — | Penna |
| 29 | Henry 3Rd Beyerle | 9 | Son | — | Penna |
| 30 | Jane Beyerle | 5 | Daughter | — | Penna |
| 31 | Francis S Lentz | 53 | Head | Tester | Penna |
| 32 | Elizabeth Lentz | 53 | Wife | — | Maryland |
| 33 | Clayton Lentz | 28 | Son | Tester | Penna |
| 34 | Morris Bourse | 47 | Head | Clerk | Russia |
| 35 | Sadie Bourse | 42 | Wife | Clerk | Penna |
| 36 | Evelyn J Bourse | 16 | Daughter | — | Penna |
| 37 | Joan A Bourse | 9 | Daughter | — | Penna |
| 38 | Albert Speier | 41 | Head | Tax Collector | Penna |
| 39 | Eleanora Speier | 35 | Wife | — | Penna |
| 40 | Maurice Speier | 77 | Father | — | Penna |
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)