EN
Elmer Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Elmer Nelson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Peter & Augusta — first a head (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Nelson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Automobile Mechanic |
| Industry | Service Garage |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1924 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Automobile Mechanic |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1900 |
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 Elmer | Age | Birth yr |
|---|---|---|---|---|
| Elmer Nelson | Head | — | 40 | ~1900 |
| Olive Nelson | Daughter | — | 18 | ~1922 |
| Olive Nelson | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 20
Allegheny, Pennsylvania · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Elmer M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Helper |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 30
Allegheny, Pennsylvania · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Elmer |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Mechanic |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 40
Allegheny-County, Pennsylvania · implied b. ~1900 — 3 household members
| Surname | Nelson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Automobile Mechanic |
| Industry | Service Garage |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1924 |
| Highest Grade | No 8 |
| 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 Elmer Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Nelson (~0.92 confidence) and mother Augusta Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Nelson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Augusta Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Elmer Nelson
Head · 1940 · age 40 · b. ~1900 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03660-00216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Towe | 28 | Head | Milk Man | Pennsylvania |
| 2 | Marion Towe | 24 | Wife | — | Pennsylvania |
| 3 | James Jr. Towe | 2 | Son | — | Pennsylvania |
| 4 | Sandra Towe | 0 | Daughter | — | Pennsylvania |
| 5 | Calvin Boyd | 21 | Boarder | Shipper | Pennsylvania |
| 6 | Dale Young | 33 | Head | Machinist | Indiana |
| 7 | Anna Young | 29 | Wife | — | Pennsylvania |
| 8 | Lois Young | 4 | Daughter | — | Pennsylvania |
| 9 | Dale Jr. Young | 1 | Son | — | Pennsylvania |
| 10 | Emil Fontana | 39 | Head | Shipper | Italy |
| 11 | Loretta Fontana | 34 | Wife | — | Pennsylvania |
| 12 | Charles Fontana | 12 | Son | — | Pennsylvania |
| 13 | Thomas Brandemartin | 36 | Head | Sales Clerk | Pennsylvania |
| 14 | William Brandemartin | 15 | Son | — | Pennsylvania |
| 15 | James Brandemartin | 13 | Son | — | Pennsylvania |
| 16 | Shirley Brandemartin | 11 | Daughter | — | Pennsylvania |
| 17 | Betty Brandemartin | 7 | Daughter | — | Pennsylvania |
| 18 | Elmer Jonnet | 37 | Head | Sheet Metal Worker | Pennsylvania |
| 19 | Laura Jonnet | 30 | Wife | — | Pennsylvania |
| 20 | Laura Bell Jonnet | 12 | Daughter | — | Pennsylvania |
| 21 | Elmer Jonnet | 10 | Son | — | Pennsylvania |
| 22 | Richard Jonnet | 8 | Son | — | Pennsylvania |
| 23 | Joseph Jonnet | 7 | Son | — | Pennsylvania |
| 24 | Emma Jonnet | 64 | Mother-in-law | — | Pennsylvania |
| 25 | Elmer Nelson THIS PERSON | 40 | Head | Automobile Mechanic | Pennsylvania |
| 26 | Olive Nelson | 40 | Wife | — | Pennsylvania |
| 27 | Olive C. Nelson | 18 | Daughter | — | Pennsylvania |
| 28 | Joseph Maccaro | 40 | Head | Laborer | Nebraska |
| 29 | Riga Maccaro | 39 | Wife | — | Italy |
| 30 | Angeline Maccaro | 12 | Daughter | — | Pennsylvania |
| 31 | Lewis Lutzman | 47 | Head | Salesman | Pennsylvania |
| 32 | Catherine Lutzman | 43 | Wife | — | Pennsylvania |
| 33 | Lewis Jr. Lutzman | 22 | Son | Cabinet Maker | Pennsylvania |
| 34 | William Lutzman | 19 | Son | Painter | Pennsylvania |
| 35 | Catherine Lutzman | 17 | Daughter | — | Pennsylvania |
| 36 | Cornelius Vernis | 41 | Head | Draftsman | Holland |
| 37 | Lillian Vernis | 37 | Wife | — | Pennsylvania |
| 38 | Cornelius Jr. Vernis | 17 | Son | — | Pennsylvania |
| 39 | William Vernis | 13 | Son | — | Pennsylvania |
| 40 | John Then | 51 | Head | Clerk-Sales | Pennsylvania |
Pedigree Summary
Elmer
Gen 1 · 2 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)