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Elmer Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Merrimack-County, New Hampshire
Our Model Tree links this Elmer Johnson across the 1920, 1930 and 1940 US Censuses in Merrimack-County, New Hampshire (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a son (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Son
Born: New Hampshire
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Merrimack-County, New Hampshire |
| Surname | Johnson |
| Given Name | Elmer E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Concord city |
| 1935 Residence (County) | Merrimack |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1150 |
| Highest Grade | H4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Mechanic |
| Township / Ward | Concord City |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Elmer | Age | Birth yr |
|---|---|---|---|---|
| Ethel Johnson | Daughter | — | 21 | ~1919 |
| Evelyn Johnson | Daughter | — | 33 | ~1907 |
| Edward Johnson | Head | — | 76 | ~1864 |
| Elmer Johnson | Son | — | 35 | ~1905 |
| Ellen Johnson | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Merrimack, New …
Son, age 15
Merrimack, New Hampshire · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Elmer L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Merrimack, New …
Son, age 25
Merrimack, New Hampshire · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Elmer E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | repair man |
| Industry | garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Merrimack-County, New …
Son, age 35
Merrimack-County, New Hampshire · implied b. ~1905 — 5 household members
| Surname | Johnson |
| Given Name | Elmer E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Concord city |
| 1935 Residence (County) | Merrimack |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1150 |
| Highest Grade | H4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Johnson (~0.92 confidence) and father Edward Johnson (~0.92 confidence) and father Edward 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
Edward Johnson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Edward Johnson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Edward Johnson
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Elmer Johnson
Son · 1940 · age 35 · b. ~1905 · New Hampshire
★ You are viewing this record
Sibling
Ethel Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Johnson
Sibling · 1940 · age 33
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 — Merrimack-County, New Hampshire
Open full size
1940 US Federal Census — Merrimack-County, New Hampshire
Page Contents
6 people indexed on this census page (nara:1940:m-t0627-02293-00745)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Johnson | 76 | Head | — | Sweden |
| 2 | Ellen S. Johnson | 63 | Wife | — | Sweden |
| 3 | Elmer E. Johnson THIS PERSON | 35 | Son | Mechanic | New Hampshire |
| 4 | Evelyn M. Johnson | 33 | Daughter | Stenographer | New Hampshire |
| 5 | Ethel C. Johnson | 21 | Daughter | Clerk | New Hampshire |
| 6 | Mary A. Whittaker | 52 | Head | Hospital Superintendent | New Jersey |
Related Census Records
Pedigree Summary
Elmer + 2 siblings
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)