HJ
Harry Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Blair-County, Pennsylvania
Our Model Tree links this Harry Johnston across the 1930 and 1940 US Censuses in Blair-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Blair-County, Pennsylvania |
| Surname | Johnston |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Duncansville Borough |
| 1935 Residence (County) | Blair |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | S 7 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Duncansville Borough |
| Est. Birth Year | ~1925 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Melissa Johnston | Daughter | — | 18 | ~1922 |
| Donald Johnston | Son | — | 12 | ~1928 |
| Sadie Johnston | Spouse | — | 35 | ~1905 |
| David Johnston | Head | — | 38 | ~1902 |
| Harry Johnston | Son | — | 15 | ~1925 |
| Helen Johnston | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Blair, Pennsylvania
Son, age 6
Blair, Pennsylvania · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| 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
Blair-County, Pennsylvania
Son, age 15
Blair-County, Pennsylvania · implied b. ~1925 — 6 household members
| Surname | Johnston |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Duncansville Borough |
| 1935 Residence (County) | Blair |
| Income (1939) | 0 |
| Highest Grade | S 7 |
| 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 Harry Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harry Johnston
Son · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Donald Johnston
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Johnston
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melissa Johnston
Sibling · 1940 · age 18
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 — Blair-County, Pennsylvania
Open full size
1940 US Federal Census — Blair-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03440-00415)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Borcht | 33 | Wife | — | Pennsylvania |
| 2 | Hazel Borcht | 14 | Daughter | — | Pennsylvania |
| 3 | Charles Grove | 54 | Head | Boiler Maker | Pennsylvania |
| 4 | Emma Grove | 52 | Wife | — | England |
| 5 | Howard Grove | 24 | Son | Helper | Pennsylvania |
| 6 | Ernest Grove | 19 | Son | New Worker | Pennsylvania |
| 7 | Charles Shaffer | 67 | Head | — | Pennsylvania |
| 8 | Effie M. Shaffer | 65 | Wife | — | Pennsylvania |
| 9 | A. B. Heller | 42 | Head | Car Builder | Pennsylvania |
| 10 | Florence L. Heller | 39 | Wife | — | Pennsylvania |
| 11 | Sally Lou Heller | 14 | Daughter | Saleslady | Pennsylvania |
| 12 | Jesse Piper | 56 | Head | — | Pennsylvania |
| 13 | Laura Piper | 53 | Wife | — | Pennsylvania |
| 14 | Raymond Piper | 21 | Son | Garage Helper | Pennsylvania |
| 15 | Robert Piper | 18 | Son | — | Pennsylvania |
| 16 | Regis Piper | 16 | Son | — | Pennsylvania |
| 17 | Samuel Piper | 14 | Son | — | Pennsylvania |
| 18 | John Piper | 12 | Son | — | Pennsylvania |
| 19 | Charles S. Smith | 63 | Head | Boiler Maker | Pennsylvania |
| 20 | Ella C. Smith | 66 | Wife | — | Pennsylvania |
| 21 | Carrie Smith | 40 | Daughter | — | Pennsylvania |
| 22 | D. S. Piper | 72 | Head | — | Pennsylvania |
| 23 | Laura Piper | 76 | Wife | — | Pennsylvania |
| 24 | Durwood Piper | 19 | Grandson | Laborer | Pennsylvania |
| 25 | David Johnston | 38 | Head | — | Pennsylvania |
| 26 | Sadie Johnston | 35 | Wife | — | Pennsylvania |
| 27 | Melissa Johnston | 18 | Daughter | — | Pennsylvania |
| 28 | Harry Johnston THIS PERSON | 15 | Son | — | Pennsylvania |
| 29 | Helen Johnston | 14 | Daughter | — | Pennsylvania |
| 30 | Donald Johnston | 12 | Son | — | Pennsylvania |
| 31 | Ellen E. Duklo | 74 | Head | — | Pennsylvania |
| 32 | Harry R. Duklo | 33 | Son | Time Keeper | Pennsylvania |
| 33 | Marjorie Ann Duklo | 40 | Daughter-in-law | — | Pennsylvania |
| 34 | Harry R. Jr. Duklo | 11 | Grandson | — | Pennsylvania |
| 35 | Marjorie Ann Duklo | 10 | Daughter | — | Pennsylvania |
| 36 | James Duklo | 6 | Grandson | — | Pennsylvania |
| 37 | Fred Duklo | 2 | Grandson | — | Pennsylvania |
| 38 | Asberry Kantner | 64 | Head | — | Pennsylvania |
| 39 | Annie M. Kantner | 60 | 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)