EN
Elmer Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Elmer Nelson across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Jonas & Amanda — first a head (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Nelson |
| Given Name | Elmer J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Toolmaker |
| Industry | Abrasive Co |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 52 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Toolmaker |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1908 |
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 Elmer | Age | Birth yr |
|---|---|---|---|---|
| Sonya Nelson | Daughter | — | 5 | ~1935 |
| Sonya Nelson | Spouse | — | 29 | ~1911 |
| Marilyn Nelson | Daughter | — | 5 | ~1935 |
| Elmer Nelson | Head | — | 32 | ~1908 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Elmer F |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Son, age 21
Worcester, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Elmer T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | 0 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | tool-maker |
| Industry | machine shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Head, age 32
Worcester-County, Massachusetts · implied b. ~1908 — 4 household members
| Surname | Nelson |
| Given Name | Elmer J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Occupation | Toolmaker |
| Industry | Abrasive Co |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 52 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 3 locations, using XGBoost record linkage. Identified parents: father Jonas Nelson (~0.92 confidence) and mother Amanda Nelson (~0.92 confidence) and mother Anna Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jonas Nelson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Amanda Nelson
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Anna Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Elmer Nelson
Head · 1940 · age 32 · b. ~1908 · Massachusetts
★ 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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01717-00508)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John J. Rader | 5 | Nephew | — | Irish Free State |
| 42 | Daniel F. Sullivan | 20 | Lodger | Sewer Worker | Massachusetts |
| 43 | Delia A. Kelley | 79 | Head | — | Massachusetts |
| 44 | Mary E. Jackson | 55 | Daughter | — | Massachusetts |
| 45 | William Glodis | 35 | Head | Treater | Massachusetts |
| 46 | Catherine W. Glodis | 34 | Wife | — | Massachusetts |
| 47 | William J. Glodis | 8 | Son | — | Massachusetts |
| 48 | Thomas P. Glodis | 5 | Son | — | Massachusetts |
| 49 | Elmer J. Nelson THIS PERSON | 32 | Head | Toolmaker | Massachusetts |
| 50 | Sonya A. Nelson | 29 | Wife | — | Massachusetts |
| 51 | Sonya E. Nelson | 5 | Daughter | — | Massachusetts |
| 52 | Marilyn A. Nelson | 5 | Daughter | — | Massachusetts |
| 53 | Kostantas Liauskas | 50 | Head | Machinist | Lithuania |
| 54 | Helen Liauskas | 50 | Wife | — | Lithuania |
| 55 | Angela E. Liauskas | 23 | Daughter | Sewer | Massachusetts |
| 56 | Antoinette R. Liauskas | 22 | Daughter | Stitcher | Massachusetts |
| 57 | Alex W. Liauskas | 21 | Son | Painter | Massachusetts |
| 58 | John J. Liauskas | 20 | Son | Grew Worker | Massachusetts |
| 59 | Frank G. Holden | 60 | Head | — | Irish Free State |
| 60 | Margaret J. Holden | 56 | Wife | Dietician | Irish Free State |
| 61 | Alice M. Holden | 25 | Daughter | Salesgirl | Massachusetts |
| 62 | James F. Holden | 23 | Son | Grocery Store Clerk | Massachusetts |
| 63 | Harry Finne | 54 | Head | W.P.A. Worker | Massachusetts |
| 64 | Annie Finne | 52 | Wife | — | Sweden |
| 65 | Hugo W. Finne | 25 | Son | New Worker | Massachusetts |
| 66 | Adora J. Finne | 22 | Daughter | — | Massachusetts |
| 67 | Paul D. Finne | 21 | Son | New Worker | Massachusetts |
| 68 | Marie L. Finne | 16 | Daughter | — | Massachusetts |
| 69 | Philip J. Johnson | 25 | Head | W.P.A. Worker | Massachusetts |
| 70 | Phyllis Johnson | 3 | Daughter | — | Massachusetts |
| 71 | Edward P. Johnson | 2 | Son | — | Massachusetts |
| 72 | William Johnson | None | Son | — | Massachusetts |
| 73 | Chester H. Johnson | 23 | Brother | Wpa Worker | Massachusetts |
| 74 | Marie E. Johnson | 24 | Sister-in-law | — | Massachusetts |
| 75 | Hilda S. Wallman | 54 | Head | Housework | Sweden |
| 76 | Raymond O. Wallman | 24 | Son | Laborer | Massachusetts |
| 77 | Stanley P. Wallman | 19 | Son | Packer | Massachusetts |
| 78 | Alma A. Carlson | 57 | Sister | Housework | Sweden |
| 79 | Kazimier Jakutis | 62 | Head | Wire Drawer | Lithuania |
| 80 | Antoinette Jakutis | 46 | Wife | — | Lithuania |
Pedigree Summary
Elmer
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)