MJ
Melvin Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mckean-County, Pennsylvania
Our Model Tree links this Melvin Johnson across the 1920, 1930 and 1940 US Censuses in Mckean-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Helen & Albert — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mckean-County, Pennsylvania |
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wetmore Twp. |
| 1935 Residence (County) | McKean |
| Additional Details | |
| Occupation | Driver |
| Industry | Meat Market |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 432 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Driver |
| Township / Ward | Wetmore Twp |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Melvin | Age | Birth yr |
|---|---|---|---|---|
| Ellen Johnson | Daughter | — | 38 | ~1902 |
| Helen Johnson | Head | — | 67 | ~1873 |
| Melvin Johnson | Son | — | 23 | ~1917 |
Census Appearances
1920
Mckean, Pennsylvania
Son, age 2
Mckean, Pennsylvania · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Mother Tongue | Swedish |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mckean, Pennsylvania
Son, age 12
Mckean, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Mckean-County, Pennsylvania
Son, age 23
Mckean-County, Pennsylvania · implied b. ~1917 — 3 household members
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wetmore Twp. |
| 1935 Residence (County) | McKean |
| Occupation | Driver |
| Industry | Meat Market |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 432 |
| Highest Grade | Hs 3 |
| 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 Melvin Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Helen Johnson (~0.92 confidence) and father Albert Johnson (~0.92 confidence) and mother Ida Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Helen Johnson
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Albert Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Ida Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Melvin Johnson
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Ellen Johnson
Sibling · 1940 · age 38
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 — Mckean-County, Pennsylvania
Open full size
1940 US Federal Census — Mckean-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03569-00736)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilma Carlson | 35 | Daughter | — | Pennsylvania |
| 2 | Lavonne Carlson | 8 | Granddaughter | — | Pennsylvania |
| 3 | Orville M. Johnson | 26 | Head | Trucking | Pennsylvania |
| 4 | Harriet A. Johnson | 23 | Wife | — | Pennsylvania |
| 5 | Larry L. Johnson | 0 | Son | — | Pennsylvania |
| 6 | Oscar Stahl | 76 | Head | Farmer | Sweden |
| 7 | Elof Stahl | 39 | Son | Tool Dresser | Pennsylvania |
| 8 | Ranghild Stahl | 36 | Daughter-in-law | — | Pennsylvania |
| 9 | Richard Stahl | 8 | Grandson | — | Pennsylvania |
| 10 | Betsy Stahl | 3 | Granddaughter | — | Pennsylvania |
| 11 | W. Albert Covert | 42 | Head | Laborer | Pennsylvania |
| 12 | Margaret Covert | 41 | Wife | — | Pennsylvania |
| 13 | Chester Covert | 21 | Son | Laborer | Pennsylvania |
| 14 | Jack Covert | 19 | Son | Laborer | Pennsylvania |
| 15 | Wm. Jr. Covert | 17 | Son | — | Pennsylvania |
| 16 | Alvin Osbourn | 55 | Head | Farmer | Pennsylvania |
| 17 | Ethel Osbourn | 41 | Wife | — | Pennsylvania |
| 18 | Marvin C. Raymond | 42 | Head | Farmer | Pennsylvania |
| 19 | Nora C. Raymond | 55 | Wife | — | Pennsylvania |
| 20 | Carl A. Johnson | 79 | Head | Farmer | Sweden |
| 21 | Jennie Johnson | 75 | Wife | — | Sweden |
| 22 | W. Lester Gatewood | 32 | Head | Manager | Pennsylvania |
| 23 | Maxine Gatewood | 27 | Wife | — | Pennsylvania |
| 24 | Richard L. Cook | 12 | Adopted son | — | Pennsylvania |
| 25 | Helen Johnson | 67 | Head | — | Sweden |
| 26 | Ellen Johnson | 38 | Daughter | Bookkeeper | Pennsylvania |
| 27 | Melvin Johnson THIS PERSON | 23 | Son | Driver | Pennsylvania |
| 28 | Henry W. Nelson | 30 | Head | Janitor | Pennsylvania |
| 29 | Pearl Nelson | 22 | Wife | — | Pennsylvania |
| 30 | Amanda J. Nelson | 2 | Daughter | — | Pennsylvania |
| 31 | — | None | — | — | — |
| 32 | Carl T. Nelson | 71 | Head | Farmer | Sweden |
| 33 | Hugo Nelson | 39 | Son | Carpenter | Pennsylvania |
| 34 | Mary Nelson | 35 | Daughter-in-law | — | Pennsylvania |
| 35 | Martin E. Nelson | 27 | Son | Laborer | Pennsylvania |
| 36 | Lyle Miller | 31 | Head | Driller | Pennsylvania |
| 37 | Helen Miller | 28 | Wife | — | New York |
| 38 | Reed C. Lemmon | 28 | Head | Laborer | Pennsylvania |
| 39 | Flora A. Lemmon | 22 | Wife | — | Pennsylvania |
| 40 | Nancy Lee Lemmon | 4 | Daughter | — | Pennsylvania |
Pedigree Summary
Melvin + 1 sibling
Gen 1 · 3 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)