LN
Lois Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Lois Nelson across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Nelson |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Worcester |
| Est. Birth Year | ~1925 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lois | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Nelson | Spouse | — | 49 | ~1891 |
| Lois Nelson | Daughter | — | 15 | ~1925 |
| Herbert Nelson | Son | — | 17 | ~1923 |
| Ruth Nelson | Daughter | — | 20 | ~1920 |
| Carl Nelson | Son | — | 11 | ~1929 |
| Diane Nelson | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Worcester, Massachusetts
Daughter, age 4
Worcester, Massachusetts · implied b. ~1926 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Lois Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Daughter, age 15
Worcester-County, Massachusetts · implied b. ~1925 — 6 household members
| Surname | Nelson |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 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 Lois Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Nelson
Daughter · 1940 · age 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Carl Nelson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Nelson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Nelson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Diane Nelson
Sibling · 1940 · age 6
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 — 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-t0627-01715-00020)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Nelson | 49 | Wife | — | Massachusetts |
| 42 | Ruth Nelson | 20 | Daughter | — | Massachusetts |
| 43 | Herbert Nelson | 17 | Son | Plater | Massachusetts |
| 44 | Lois Nelson THIS PERSON | 15 | Daughter | — | Massachusetts |
| 45 | Carl Jr. Nelson | 11 | Son | — | Massachusetts |
| 46 | Diane Nelson | 6 | Daughter | — | Massachusetts |
| 47 | Nicholas Olivieri | 52 | Head | Boiler Repairer | Italy |
| 48 | Concetta Olivieri | 48 | Wife | — | Italy |
| 49 | Antoinette Olivieri | 26 | Daughter | Presser | Massachusetts |
| 50 | Joseph Olivieri | 24 | Son | Machine Assembler | Massachusetts |
| 51 | Gasper Olivieri | 21 | Son | Glazier | Massachusetts |
| 52 | Theresa Olivieri | 19 | Daughter | Packer | Massachusetts |
| 53 | Anna Olivieri | 17 | Daughter | — | Massachusetts |
| 54 | Mary Olivieri | 15 | Daughter | — | Massachusetts |
| 55 | Rita Olivieri | 13 | Daughter | — | Massachusetts |
| 56 | Frank Olivieri | 10 | Son | — | Massachusetts |
| 57 | Nicholas Olivieri | 8 | Son | — | Massachusetts |
| 58 | Gasper Bucciaglia | 76 | Father-in-law | — | Italy |
| 59 | Joseph Bucciaglia | 39 | Brother-in-law | — | New York |
| 60 | Salvatore Belaito | 47 | Head | 650 Tile Setter | Italy |
| 61 | Katherine Belaito | 46 | Wife | — | Italy |
| 62 | Joseph Belaito | 20 | Son | — | Massachusetts |
| 63 | Albert Belaito | 17 | Son | — | Massachusetts |
| 64 | Louis Belaito | 13 | Son | Paper Boy | Massachusetts |
| 65 | Gloria Belaito | 11 | Daughter | — | Massachusetts |
| 66 | Joseph Delleddo | 22 | Son-in-law | Laborer | Massachusetts |
| 67 | Carmela Delleddo | 22 | Daughter | Sewer | Massachusetts |
| 68 | Arthur Villani | 46 | Head | Tool Maker | Italy |
| 69 | Elizabeth Villani | 37 | Wife | — | Massachusetts |
| 70 | Harvey Griffin | 37 | Head | Assistant Shipper | Massachusetts |
| 71 | Mary Griffin | 34 | Wife | — | Massachusetts |
| 72 | Robert Griffin | 14 | Son | — | Massachusetts |
| 73 | Emilio Rosiello | 43 | Head | Mason | Italy |
| 74 | Theresa Rosiello | 40 | Wife | — | Italy |
| 75 | John Rosiello | 22 | Son | Mason | Massachusetts |
| 76 | Anthony Rosiello | 17 | Son | — | Massachusetts |
| 77 | Raymond Rosiello | 15 | Son | — | Massachusetts |
| 78 | Emilio Jr. Rosiello | 12 | Son | — | Massachusetts |
| 79 | Alfred Rosiello | 10 | Son | — | Massachusetts |
| 80 | Rose Rosiello | 8 | Daughter | — | Massachusetts |
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)