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John Dalton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Dalton across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Dalton |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 5 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lowell |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Dalton | Spouse | — | 43 | ~1897 |
| James Dalton | Head | — | 43 | ~1897 |
| Norma Dalton | Daughter | — | 19 | ~1921 |
| Mary Dalton | Daughter | — | 9 | ~1931 |
| John Dalton | Son | — | 12 | ~1928 |
| William Dalton | Son | — | 4 | ~1936 |
| James Dalton | Son | — | 16 | ~1924 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dalton |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 12
Middlesex-County, Massachusetts · implied b. ~1928 — 7 household members
| Surname | Dalton |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Highest Grade | 5 |
| 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 Dalton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dalton
Son · 1940 · age 12 · b. ~1928 · Massachusetts
★ You are viewing this record
Sibling
William Dalton
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Dalton
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dalton
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dalton
Sibling · 1940 · age 9
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01692-00239)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Hecht-Gustav | 15 | Son | — | Massachusetts |
| 2 | Robert Hecht-Gustav | 9 | Son | — | Massachusetts |
| 3 | Alvar X Berg | 37 | Head | Laborer | Sweden |
| 4 | Edith Berg | 40 | Wife | Weaver | Massachusetts |
| 5 | Charles Rigg | 39 | Head | Fireman | Massachusetts |
| 6 | Natalie Rigg | 39 | Wife | — | New Hampshire |
| 7 | Francis Rigg | 15 | Son | — | Massachusetts |
| 8 | Head Bussell | 36 | Head | Fireman | New Hampshire |
| 9 | Marion X Bussell | 35 | Wife | — | Massachusetts |
| 10 | Marion E Bussell | 13 | Daughter | — | Massachusetts |
| 11 | Frances M Bussell | 7 | Daughter | — | Massachusetts |
| 12 | Bernard J Bussell | 1 | Son | — | Massachusetts |
| 13 | George F Tilton | 73 | Head | — | Vermont |
| 14 | Mildred Tilton | 37 | Wife | — | Vermont |
| 15 | Annie M X Crowley | 58 | Head | — | Eire |
| 16 | John Crowley | 27 | Son | Helper | Massachusetts |
| 17 | Daniel Crowley | 25 | Son | Pressman | Massachusetts |
| 18 | Catherine Crowley | 21 | Daughter | — | Massachusetts |
| 19 | Harold X Noble | 26 | Head | Examiner | England |
| 20 | Ella Noble | 25 | Wife | Top Stitcher | Massachusetts |
| 21 | Eloie Noble | 9 | Daughter | — | Massachusetts |
| 22 | James Dalton | 43 | Head | Truck Driver | Ireland |
| 23 | Helen X Dalton | 43 | Wife | — | Massachusetts |
| 24 | Norma Dalton | 19 | Daughter | — | Massachusetts |
| 25 | James Jr Dalton | 16 | Son | — | Massachusetts |
| 26 | John Dalton THIS PERSON | 12 | Son | — | Massachusetts |
| 27 | William Dalton | 4 | Son | — | Massachusetts |
| 28 | Mary Dalton | 9 | Daughter | — | Massachusetts |
| 29 | Arthur Cof | 51 | Head | Laborer | Massachusetts |
| 30 | Mary X Cof | 42 | Wife | — | Massachusetts |
| 31 | Theresa Cof | 21 | Daughter | Housework | Massachusetts |
| 32 | Isabelle Cof | 17 | Daughter | — | Massachusetts |
| 33 | Frederick Cof | 9 | Son | — | Massachusetts |
| 34 | Thomas Cof | 5 | Son | — | Massachusetts |
| 35 | Redfern Margaret | 75 | Mother-in-law | — | Eire |
| 36 | Daniel X Pelissier | 57 | Head | — | Sweden |
| 37 | August Pelissier | 30 | Son | Scrap Sorter | Massachusetts |
| 38 | Frank Keleon | 61 | Head | Laborer | Pennsylvania |
| 39 | Alvina X Keleon | 59 | Wife | — | 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)