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Helen Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Helen Nelson across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Frederick & Marie — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Nelson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Inspector |
| Industry | Dept. Store |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 780 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Inspector |
| Township / Ward | Boston |
| Est. Birth Year | ~1918 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Nelson | Daughter | — | 24 | ~1916 |
| Helen Nelson | Daughter | — | 22 | ~1918 |
| Ray Nelson | Son | — | 26 | ~1914 |
| Marie Nelson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 1
Suffolk, Massachusetts · implied b. ~1919 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Helen |
| Relationship to Head | Grandchild |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 11
Suffolk, Massachusetts · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Helen F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Nelson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Inspector |
| Industry | Dept. Store |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 780 |
| Highest Grade | H 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: father Frederick Nelson (~0.92 confidence) and mother Marie Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frederick Nelson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Marie Nelson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Nelson
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Ray Nelson
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Nelson
Sibling · 1940 · age 24
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01675-00786)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Nelson | 48 | Wife | — | Norway |
| 42 | Ray A. Nelson | 26 | Son | Foreman | Massachusetts |
| 43 | Gertrude Nelson | 24 | Daughter | Stenographer | Massachusetts |
| 44 | Helen Nelson THIS PERSON | 22 | Daughter | Inspector | Massachusetts |
| 45 | George F. Tomlinson | 28 | Head | Florist | Massachusetts |
| 46 | Martha Tomlinson | 27 | Wife | — | Massachusetts |
| 47 | George Tomlinson | 3 | Son | — | Massachusetts |
| 48 | Mary Shernette | 49 | Head | — | Canada Eng. |
| 49 | Dorothy M. Shernette | 26 | Daughter | Secretary | Massachusetts |
| 50 | John F. Shernette | 21 | Son | Printer | Massachusetts |
| 51 | Madeline Shernette | 15 | Daughter | — | Massachusetts |
| 52 | Robert Shernette | 12 | Son | — | Massachusetts |
| 53 | Barbara Shernette | 8 | Daughter | — | Massachusetts |
| 54 | William Shernette | 7 | Son | — | Massachusetts |
| 55 | Joseph Klaus | 53 | Head | Plumber | Massachusetts |
| 56 | Mary Klaus | 46 | Wife | — | Massachusetts |
| 57 | Alfred Klaus | 20 | Son | Laborer | Massachusetts |
| 58 | Robert Klaus | 16 | Son | — | Massachusetts |
| 59 | Richard Klaus | 9 | Son | — | Massachusetts |
| 60 | Charles Klaus | 3 | Son | — | Massachusetts |
| 61 | John H. Sonntag | 61 | Head | Shipping Clerk | Massachusetts |
| 62 | Florence Sonntag | 60 | Wife | — | Canada Eng. |
| 63 | Harry Sonntag | 23 | Son | Messenger Boy | Massachusetts |
| 64 | Oswald A. Leeping | 29 | Head | Laborer | Massachusetts |
| 65 | Rose K. Leeping | 28 | Wife | — | Massachusetts |
| 66 | Richard Leeping | 5 | Son | — | Massachusetts |
| 67 | John J. Mccarthy | 30 | Head | Police Officer | Massachusetts |
| 68 | Eleanor P. Mccarthy | 28 | Wife | — | Massachusetts |
| 69 | Elizabeth M. Mccarthy | 6 | Daughter | — | Massachusetts |
| 70 | James J. Mccarthy | 2 | Son | — | Massachusetts |
| 71 | Marie Thompson | 45 | Head | Housework | Massachusetts |
| 72 | Barbara Thompson | 15 | Daughter | — | Massachusetts |
| 73 | Robert Thompson | 10 | Son | — | Massachusetts |
| 74 | Walter W. Whitney | 40 | Head | Police Chauffeur | Massachusetts |
| 75 | Gertrude E. Whitney | 44 | Wife | — | Massachusetts |
| 76 | Daniel P. Gullivan | 49 | Head | Stock Clerk | Massachusetts |
| 77 | Helen Gullivan | 44 | Wife | — | Massachusetts |
| 78 | Raymond Gullivan | 19 | Son | Kitchen Police | Massachusetts |
| 79 | Russell A. Gullivan | 16 | Son | — | Massachusetts |
| 80 | Jean Gullivan | 12 | Daughter | — | Massachusetts |
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)