JN
John Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this John Nelson across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Nelson |
| Given Name | John A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | electrician |
| Industry | abrasive company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Electrician |
| Township / Ward | Worcester City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Nelson | Head | — | 61 | ~1879 |
| Perhr Nelson | Son | — | 27 | ~1913 |
| John Nelson | Son | — | 21 | ~1919 |
| Hilda Nelson | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 1
Worcester, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| 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 11
Worcester, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | John A |
| 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/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 21
Worcester-County, Massachusetts · implied b. ~1919 — 4 household members
| Surname | Nelson |
| Given Name | John A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Occupation | electrician |
| Industry | abrasive company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| 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 John Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and mother Hilda Nelson (~0.92 confidence) and mother Hulda Nelson (~0.92 confidence) and mother Hulda Nelson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Nelson
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John Nelson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Nelson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Hilda Nelson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Hulda Nelson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Hulda Nelson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Nelson
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Perhr Nelson
Sibling · 1940 · age 27
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
39 people indexed on this census page (nara:1940:m-t0627-01712-00133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie Bostick | 31 | wife | — | Massachusetts |
| 2 | Janet Bostick | 5 | daughter | — | Massachusetts |
| 3 | Richard Bostick | 1 | son | — | Massachusetts |
| 4 | Ewald C. Ljungberg | 50 | Head | Foreman | Sweden |
| 5 | Hilda Ljungberg | 49 | wife | — | Sweden |
| 6 | Elwell Ljungberg | 22 | son | Storer | Massachusetts |
| 7 | Robert Davenport | 33 | Head | Salesman | Massachusetts |
| 8 | Phyllis Davenport | 33 | wife | — | Massachusetts |
| 9 | Robert Davenport | 10 | son | — | Massachusetts |
| 11 | Martin Lof | 70 | Head | Inspector | Sweden |
| 12 | Sigrid Lof | 69 | wife | — | Sweden |
| 13 | Lawrence Lof | 33 | son | Machinist | Massachusetts |
| 14 | Marion Lof | 10 | daughter-in-law | — | Massachusetts |
| 15 | Robert Lof | 6 | grandson | — | Massachusetts |
| 16 | Evelyn Lof | 30 | granddaughter | — | Massachusetts |
| 17 | Sigurd Peterson | 39 | Head | Machinist | Massachusetts |
| 18 | Margaret Peterson | 49 | wife | — | Massachusetts |
| 19 | Alice Peterson | 64 | mother | — | Sweden |
| 20 | Julia Ljungberg | 42 | boarder | Packer | Massachusetts |
| 21 | Allan Sjoberg | 35 | Head | Abrasive Worker | Sweden |
| 22 | Astrid Sjoberg | 34 | wife | — | Massachusetts |
| 23 | Robert Sjoberg | 9 | son | — | Massachusetts |
| 24 | Carl Sjoberg | 31 | brother | Busher | Sweden |
| 25 | Nils Nelson | 64 | father-in-law | Stock Clerk | Sweden |
| 26 | Peter A. Pearson | 51 | Head | Abrasive Worker | Sweden |
| 27 | Hildur Pearson | 38 | wife | — | Sweden |
| 28 | Otis Pearson | 18 | son | File Clerk | Massachusetts |
| 29 | John A. Bjorkman | 52 | Head | Tinsmith | Sweden |
| 30 | Thelma C. Bjorkman | 51 | wife | — | Sweden |
| 31 | Hilding Lund | 38 | Head | Cook | Massachusetts |
| 32 | Gunhild Lund | 36 | wife | — | Sweden |
| 33 | Cynthia Lund | 3 | daughter | — | Massachusetts |
| 34 | John A. Nelson | 61 | Head | Mason | Sweden |
| 35 | Hilda Nelson | 60 | wife | — | Sweden |
| 36 | Perhr Nelson | 27 | son | Inspector | Massachusetts |
| 37 | John A. Nelson THIS PERSON | 21 | son | Electrician | Massachusetts |
| 38 | Arthur J. Bostock | 30 | Head | Abrasive Worker | Canada-Eng |
| 39 | Phyllis H. Bostock | 29 | wife | — | Massachusetts |
| 40 | Eugene Bostock | 3 | son | — | Massachusetts |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 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)