DJ
Donald Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Armstrong-County, Pennsylvania
Our Model Tree links this Donald Johnson across the 1920, 1930 and 1940 US Censuses in Armstrong-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Armstrong-County, Pennsylvania |
| Surname | Johnson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Ford City Borough |
| 1935 Residence (County) | Armstrong |
| Additional Details | |
| Occupation | Laborer |
| Industry | Pennsylvania Department of Highways |
| Class of Worker | GW |
| Hours Worked | 3 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Ford City Borough |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Yvonne Johnson | Daughter | — | 20 | ~1920 |
| Albert Johnson | Head | — | 49 | ~1891 |
| Donald Johnson | Son | — | 21 | ~1919 |
| Ellen Johnson | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Armstrong, Pennsylvania
Son, age 1
Armstrong, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Donald R |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Mother Tongue | Swedish |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Armstrong, Pennsylvania
Son, age 11
Armstrong, Pennsylvania · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Donald R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Armstrong-County, Pennsylvania
Son, age 21
Armstrong-County, Pennsylvania · implied b. ~1919 — 4 household members
| Surname | Johnson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Ford City Borough |
| 1935 Residence (County) | Armstrong |
| Occupation | Laborer |
| Industry | Pennsylvania Department of Highways |
| Class of Worker | GW |
| Hours Worked | 3 |
| 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 Donald Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Johnson (~0.92 confidence) and father Albert Johnson (~0.92 confidence) and mother Ellen Johnson (~0.92 confidence) and mother Ellen Johnson (~0.92 confidence) and mother Ellen Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Johnson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Albert Johnson
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Johnson
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Yvonne Johnson
Sibling · 1940 · age 20
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 — Armstrong-County, Pennsylvania
Open full size
1940 US Federal Census — Armstrong-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03422-00542)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Cannon | 46 | Wife | — | Pennsylvania |
| 2 | Mary Ann Cannon | 21 | Daughter | — | Pennsylvania |
| 3 | Lola Russell | 45 | Head | Telephone Operator | Pennsylvania |
| 4 | Peggy Russell | 25 | Daughter | Examiner | Pennsylvania |
| 5 | William Russell | 21 | Son | Office Boy | Pennsylvania |
| 6 | Albert Johnson | 49 | Head | Pipefitter | Sweden |
| 7 | Ellen Johnson | 42 | Wife | — | Sweden |
| 8 | Donald Johnson THIS PERSON | 21 | Son | Laborer | Pennsylvania |
| 9 | Yvonne Johnson | 20 | Daughter | — | Pennsylvania |
| 10 | Anna Mongavin | 70 | Head | — | Pennsylvania |
| 11 | Margaret Mongavin | 35 | Daughter | Secretary | Pennsylvania |
| 12 | Joseph Smith | 55 | Head | Operator | Pennsylvania |
| 13 | Myrtle Smith | 48 | Wife | — | Pennsylvania |
| 14 | Wayland Smith | 23 | Son | Laborer | Pennsylvania |
| 15 | Emile Carlesi | 50 | Head | Finisher | Italy |
| 16 | Virginia Carlesi | 40 | Wife | — | Italy |
| 17 | Nick Carlesi | 22 | Son | Apprentice Helper | Pennsylvania |
| 18 | Emile Carlesi | 18 | Son | — | Pennsylvania |
| 19 | Conrad Jr. Reich | 24 | Head | Glassworker | Pennsylvania |
| 20 | Anna Reich | 19 | Wife | — | Pennsylvania |
| 21 | George Reich | 1 | Son | — | Pennsylvania |
| 22 | Anthony Baynos | 58 | Head | Examiner | Croatia |
| 23 | Mary Baynos | 55 | Wife | — | Czech-Slovakia |
| 24 | Mary Baynos | 31 | Daughter | — | Pennsylvania |
| 25 | Mildred Baynos | 28 | Daughter | Stenographer | Pennsylvania |
| 26 | Helen Baynos | 25 | Daughter | Labeler | Pennsylvania |
| 27 | Anthony Baynos | 23 | Son | Clerk | Pennsylvania |
| 28 | Dolores Pontious | 13 | Grand-daughter | — | Pennsylvania |
| 29 | Ida Liarth | 77 | Head | — | Pennsylvania |
| 30 | Mary M. Liarth | 42 | Daughter | Teacher | Pennsylvania |
| 31 | Mary Thomas | 50 | Maid | Maid | Pennsylvania |
| 32 | Donal Luce | 39 | Head | Packer | Pennsylvania |
| 33 | Alice Luce | 39 | Wife | — | Pennsylvania |
| 34 | Donal Jr. Luce | 16 | Son | — | Pennsylvania |
| 35 | Theodore Greene | 38 | Head | Glasscutter | Pennsylvania |
| 36 | Mary Greene | 37 | Wife | — | Pennsylvania |
| 37 | Lois Greene | 14 | Daughter | — | Pennsylvania |
| 38 | Gloria Greene | 2 | Daughter | — | Pennsylvania |
| 39 | Clair Black | 34 | Head | Teacher | Pennsylvania |
| 40 | Ethel Black | 31 | Wife | — | Pennsylvania |
Pedigree Summary
Donald + 1 sibling
Gen 1 · 5 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)