MJ
Margaret Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Margaret Johnston across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.
Age 67
b. ~1873
Female
Head
Born: Scotland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Johnston |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Folcroft |
| 1935 Residence (County) | Delaware |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Folcroft |
| Est. Birth Year | ~1873 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Johnston | Head | — | 67 | ~1873 |
| Margaret Maguire | Other | — | 11 | ~1929 |
| Anthony Maguire | Other | — | 35 | ~1905 |
| Anna Maguire | Daughter | — | 30 | ~1910 |
Census Appearances
Spouse, age 44
Philadelphia, Pennsylvania · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1898 |
| Birthplace (normalized) | scotland |
1930
Delaware, Pennsylvania
Spouse, age 56
Delaware, Pennsylvania · implied b. ~1874 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Delaware-County, Pennsylvania
Head, age 67
Delaware-County, Pennsylvania · implied b. ~1873 — 4 household members
| Surname | Johnston |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Folcroft |
| 1935 Residence (County) | Delaware |
| Naturalization Status | Alien |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Margaret Johnston across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Johnston
Head · 1940 · age 67 · b. ~1873 · 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03491-00291)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William H. Hurst | 65 | Father-in-law | Manager | Pennsylvania |
| 42 | Margaret Johnston THIS PERSON | 67 | Head | — | Scotland |
| 43 | Anthony Maguire | 35 | Son-in-law | Painting | Pennsylvania |
| 44 | Anna M. Maguire | 30 | Daughter | — | Pennsylvania |
| 45 | Margaret Maguire | 11 | Granddaughter | — | Pennsylvania |
| 46 | Samuel E. Wolf | 44 | Head | Electric Welding | West Virginia |
| 47 | Eleanor Wolf | 51 | Wife | — | Pennsylvania |
| 48 | James E. Love | 32 | Head | Petroleum Inspector | Pennsylvania |
| 49 | Dorothy Love | 30 | Wife | — | Pennsylvania |
| 50 | James E., Jr. Love | 6 | Son | — | Pennsylvania |
| 51 | Richard F. Love | 2 | Son | — | Pennsylvania |
| 52 | Mary Hostetler | 84 | Head | — | Pennsylvania |
| 53 | John Winterbottom | 24 | Grandson | Clerk | Pennsylvania |
| 54 | James Durkin | 48 | Head | Boiler Fireman | Pennsylvania |
| 55 | Emilie Durkin | 47 | Wife | — | Pennsylvania |
| 56 | O. F. Vanney | 58 | Head | Clerk | Pennsylvania |
| 57 | Helen Vanney | 56 | Wife | — | Pennsylvania |
| 58 | C. Frank Keller | 82 | Head | — | Pennsylvania |
| 59 | Alma K. Keller | 52 | Daughter | History Teacher | Pennsylvania |
| 60 | Annie Shiels | 62 | Head | — | Scotland |
| 61 | Ethel H. Shiels | 30 | Daughter | — | Pennsylvania |
| 62 | John Grystate | 14 | Nephew | — | Scotland |
| 63 | Dillard Adams | 37 | Head | Pipe Fitter | Missouri |
| 64 | Esther Adams | 34 | Wife | — | Missouri |
| 65 | Virena Adams | 8 | Daughter | — | Pennsylvania |
| 66 | Thomas Adams | 2 | Son | — | Pennsylvania |
| 67 | Ross Hall | 53 | Head | Joiner-Carpenter | Pennsylvania |
| 68 | Elsie Hall | 35 | Wife | — | Pennsylvania |
| 69 | C. Franklin Hall | 14 | Son | — | Pennsylvania |
| 70 | Dale W. Hall | 13 | Son | — | Pennsylvania |
| 71 | Orrin Hardgrove | 33 | Head | Oil Pumper | Ohio |
| 72 | Elizabeth Hardgrove | 32 | Wife | — | Pennsylvania |
| 73 | Elizabeth Hardgrove | 7 | Daughter | — | Pennsylvania |
| 74 | Orrin T. Hardgrove | 2 | Son | — | Pennsylvania |
| 75 | Albert S. Mckeever | 34 | Head | Foreman | Pennsylvania |
| 76 | Marie Mckeever | 29 | Daughter | — | New Jersey |
| 77 | John M. Landis | 66 | Head | — | Pennsylvania |
| 78 | Magdalene Landis | 64 | Wife | — | Pennsylvania |
| 79 | J. Paul Landis | 20 | Son | Truck Driver | Pennsylvania |
| 80 | Joseph S. Wurtz | 52 | Head | Mechanic | Pennsylvania |
Related Census Records
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)