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Harry Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Harry Nelson across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Selma & Edward — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Nelson |
| Given Name | Harry R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Scale clerk |
| Industry | Wire mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | C-3 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Scale Clerk |
| Township / Ward | Worcester |
| Est. Birth Year | ~1912 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Edward Nelson | Head | — | 58 | ~1882 |
| Emma Hagerstrom | Other | — | 59 | ~1881 |
| Harry Nelson | Son | — | 28 | ~1912 |
| Selma Nelson | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 7
Worcester, Massachusetts · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harry R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Son, age 18
Worcester, Massachusetts · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harry R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | billing clerk |
| Industry | Wire Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 28
Worcester-County, Massachusetts · implied b. ~1912 — 4 household members
| Surname | Nelson |
| Given Name | Harry R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Occupation | Scale clerk |
| Industry | Wire mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | C-3 |
| 1935 Residence | Same house |
| 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 Harry Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Selma Nelson (~0.92 confidence) and father Edward Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Selma Nelson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Edward Nelson
b. ~1883
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harry Nelson
Son · 1940 · age 28 · b. ~1912 · 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-t0627-01713-00331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gotfred B. Kasperson | 29 | Head | Installer | Massachusetts |
| 42 | Beatrice Kasperson | 32 | Wife | — | Massachusetts |
| 43 | Dorothy N. Kasperson | 0 | Daughter | — | Massachusetts |
| 44 | Edward Nelson | 58 | Head | Moulder | Sweden |
| 45 | Selma E. Nelson | 58 | Wife | — | Sweden |
| 46 | Harry R. Nelson THIS PERSON | 28 | Son | Scale Clerk | Massachusetts |
| 47 | Emma C. Hagerstrom | 59 | Housekeeper | Housework | Sweden |
| 48 | Arthur B. Matson | 46 | Head | Salesman | Massachusetts |
| 49 | Lillian M. Matson | 46 | Wife | — | Massachusetts |
| 50 | Shirley M. Matson | 14 | Daughter | — | Massachusetts |
| 51 | Arthur B. Jr. Matson | 11 | Son | — | Massachusetts |
| 52 | Hulda M. Skarin | 71 | Mother-in-law | — | Sweden |
| 53 | Henry C. Anderson | 36 | Head | Lawyer | Massachusetts |
| 54 | Alma E. Anderson | 33 | Wife | — | Massachusetts |
| 55 | Carolyn H. Anderson | 1 | Daughter | — | Massachusetts |
| 56 | George H. Pendleton | 54 | Head | Tool Maker | Maine |
| 57 | Nellie B. Pendleton | 58 | Wife | — | Ireland |
| 58 | Elizabeth B. Pendleton | 25 | Daughter | Hairdresser | Massachusetts |
| 59 | Margaret T. Lewandowski | 28 | Lodger | Hairdresser | Massachusetts |
| 60 | John W. Johnson | 86 | Head | — | Sweden |
| 61 | Emma M. Johnson | 76 | Wife | — | Sweden |
| 62 | Einar W. Johnson | 43 | Son | Baker | Massachusetts |
| 63 | John Larson | 52 | Head | Machinist | Sweden |
| 64 | Esther Larson | 47 | Wife | — | Sweden |
| 65 | Henry Kolehmainen | 55 | Head | Laborer | Finland |
| 66 | Hilda A. Kolehmainen | 49 | Wife | — | Finland |
| 67 | Theodore Haapala | 27 | Head | Insurance Broker | Massachusetts |
| 68 | Ellen H. Haapala | 24 | Wife | — | Massachusetts |
| 69 | Marie A. Greenlund | 46 | Head | Housework | Sweden |
| 70 | Doris A. M. Peterson | 23 | Daughter | Clerk | Massachusetts |
| 71 | Nils A. Anderson | 75 | Head | — | Sweden |
| 72 | Annie S. Anderson | 77 | Wife | — | Sweden |
| 73 | Mabel J. Matson | 49 | Head | Bookkeeper | Massachusetts |
| 74 | William A. Howard | 43 | Brother-in-law | Manager | Canada-English |
| 75 | Mildred A. Howard | 48 | Sister | Mail Clerk | Massachusetts |
| 76 | Amanda A. Kasperson | 59 | Head | — | Sweden |
| 77 | Marguerite V. Kasperson | 24 | Daughter | Office Clerk | Massachusetts |
| 78 | — | None | — | — | — |
| 79 | William S. Lewis | 33 | Head | Audit Clerk | Vermont |
| 80 | Audrey M. Lewis | 32 | Wife | — | Rhode Island |
Pedigree Summary
Harry
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)