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Helen Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this Helen Nelson across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Hannah & John — first a daughter (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Nelson |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Motorcycle Manufacture |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 160 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bookkeeper |
| Township / Ward | Springfield |
| Est. Birth Year | ~1919 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Nelson | Daughter | — | 22 | ~1918 |
| Helen Nelson | Daughter | — | 21 | ~1919 |
| John Nelson | Head | — | 49 | ~1891 |
| John Nelson | Son | — | 13 | ~1927 |
| Hannah Nelson | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Hampden, Massachusetts
Daughter, age
Hampden, Massachusetts · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Connecticut |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Hampden, Massachusetts
Daughter, age 11
Hampden, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Connecticut |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Daughter, age 21
Hampden-County, Massachusetts · implied b. ~1919 — 5 household members
| Surname | Nelson |
| Given Name | Helen M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Hampden |
| Occupation | Bookkeeper |
| Industry | Motorcycle Manufacture |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 160 |
| 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 Helen Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Hannah Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Hannah Nelson
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
John Nelson
b. ~1891
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Nelson
Daughter · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
John Nelson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Nelson
Sibling · 1940 · age 22
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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01707-00009)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Mcgrath | 28 | Step son | Profiler | Massachusetts |
| 42 | Harold W. Fowler | 31 | Head | Manager | Massachusetts |
| 43 | Helen P. Fowler | 30 | Wife | — | Massachusetts |
| 44 | James J. O'Connor | 39 | Head | Cable Splicer | Massachusetts |
| 45 | Catherine O'Connor | 38 | Wife | — | Massachusetts |
| 46 | James O'Connor | 5 | Son | — | Massachusetts |
| 47 | John A. Nelson | 49 | Head | Clerk | Connecticut |
| 48 | Hannah W. Nelson | 49 | Wife | — | Connecticut |
| 49 | Dorothy Nelson | 22 | Daughter | Sec'Y | Massachusetts |
| 50 | Helen M. Nelson THIS PERSON | 21 | Daughter | Bookkeeper | Massachusetts |
| 51 | John R. Nelson | 13 | Son | — | Massachusetts |
| 52 | Elden J. Mable | 42 | Head | Clerk Stock | Massachusetts |
| 53 | Ethel G. Mable | 47 | Wife | — | New York |
| 54 | Edith L. Dittemore | 52 | Head | Inspector | Vermont |
| 55 | Bertha H. Ashley | 54 | Sister | Clerk | Vermont |
| 56 | Ella R. Clifford | 82 | Mother | — | Vermont |
| 57 | Hilda G. Maddock | 44 | Head | Receptionist | England |
| 58 | Phyllis G. Maddock | 17 | Daughter | — | Massachusetts |
| 59 | James H. Maddock | 15 | Son | — | Massachusetts |
| 60 | Thomas J. Russell | 61 | Head | Mechanic | Scotland |
| 61 | Florence W. Russell | 61 | Wife | — | Massachusetts |
| 62 | Fred G. Wilcox | 43 | Head | Tool Engineer | Connecticut |
| 63 | Edith B. Wilcox | 40 | Wife | — | Connecticut |
| 64 | Quentin C. Wilcox | 12 | Son | — | Connecticut |
| 65 | Max J. Poellmann | 37 | Head | Foreman | Germany |
| 66 | Hilda L. Poellmann | 30 | Wife | — | Germany |
| 67 | Eleanor Poellmann | 5 | Daughter | — | Massachusetts |
| 68 | Harold Killmer | 40 | Head | Printer | Massachusetts |
| 69 | Dorothy G. Killmer | 38 | Wife | — | Maryland |
| 70 | Elizabeth Killmer | 5 | Daughter | — | Massachusetts |
| 71 | Mary E. Pantz | 78 | Mother-in-law | — | Maryland |
| 72 | Walter A. Colson | 52 | Head | Machinist | Massachusetts |
| 73 | Grace M. Colson | 49 | Wife | — | Rhode Island |
| 74 | Edward M. Trauschke | 39 | Head | Operator | Massachusetts |
| 75 | Dorothy B. Trauschke | 32 | Wife | — | Massachusetts |
| 76 | Edward M. Trauschke | 10 | Son | — | Massachusetts |
| 77 | Robert A. Trauschke | 5 | Son | — | Massachusetts |
| 78 | Edward J. Harvey | 36 | Head | Pharmacist | Massachusetts |
| 79 | Gladys M. Harvey | 35 | Wife | — | Vermont |
| 80 | Edward J. Harvey | 2 | Son | — | Massachusetts |
Related Census Records
Pedigree Summary
Helen + 2 siblings
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)