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James Dalton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Dalton across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 7-person household.
Age 29
b. ~1911
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Dalton |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville (city) |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Elementary Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 15 |
| Income (1939) | 2491 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Elementary Teacher |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1911 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Catherine Dalton | Daughter | — | 19 | ~1921 |
| Patrick Dalton | Head | — | 62 | ~1878 |
| James Dalton | Son | — | 29 | ~1911 |
| Catherine Dalton | Spouse | — | 62 | ~1878 |
| Louise Dalton | Daughter | — | 17 | ~1923 |
| Mary Dalton | Daughter | — | 26 | ~1914 |
| Elizabeth Dalton | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 19
Middlesex, Massachusetts · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dalton |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 29
Middlesex-County, Massachusetts · implied b. ~1911 — 7 household members
| Surname | Dalton |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville (city) |
| 1935 Residence (County) | Middlesex |
| Occupation | Elementary Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 15 |
| Income (1939) | 2491 |
| Highest Grade | C-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 James Dalton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dalton
Son · 1940 · age 29 · b. ~1911 · Massachusetts
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Sibling
Catherine Dalton
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Dalton
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dalton
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Dalton
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01704-00057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daniel Sandoli | 19 | Son | — | Massachusetts |
| 42 | Jerry Jr Sandoli | 17 | Son | — | Massachusetts |
| 43 | Eleanor Sandoli | 15 | Daughter | — | Massachusetts |
| 44 | Marion Sandoli | 10 | Daughter | — | Massachusetts |
| 45 | John O'Brien | 30 | Head | Warehouse Helper | Massachusetts |
| 46 | Deborah O'Brien | 30 | Wife | — | Irish Free State |
| 47 | Thomas Murphy | 50 | Head | Coal Man Helper | Ireland |
| 48 | Celia Murphy | 40 | Wife | — | Ireland |
| 49 | Margaret Murphy | 15 | Daughter | — | Massachusetts |
| 50 | Mary Murphy | 13 | Daughter | — | Massachusetts |
| 51 | Gertrude Murphy | 11 | Daughter | — | Massachusetts |
| 52 | John Murphy | 8 | Son | — | Massachusetts |
| 53 | Barbara Murphy | 6 | Daughter | — | Massachusetts |
| 54 | Theresa Murphy | 5 | Daughter | — | Massachusetts |
| 55 | Agnes Murphy | 2 | Daughter | — | Massachusetts |
| 56 | James Gillispie | Gillispy | 36 | Head | Carpenter | Canada-English |
| 57 | Hannah Gillispie | Gillispy | 32 | Wife | — | Canada-English |
| 58 | Donald Gillispie | Gillispy | 7 | Son | — | Massachusetts |
| 59 | Richard Gillispie | Gillispy | 5 | Son | — | Massachusetts |
| 60 | Janet Gillispie | Gillispy | 3 | Daughter | — | Massachusetts |
| 61 | Alfred Scott | 63 | Head | Moulder | England |
| 62 | Isabelle Scott | 53 | Wife | — | Scotland |
| 63 | Alfred Jr Scott | 23 | Son | Laborer | Massachusetts |
| 64 | Ernest R Scott | 21 | Son | Packer | Massachusetts |
| 65 | Florence L Scott | 20 | Daughter | Wig Assembler | Massachusetts |
| 66 | Margaret C Scott | 18 | Daughter | Domestic Maid | Massachusetts |
| 67 | Walter R Scott | 17 | Son | Laborer | Massachusetts |
| 68 | Violet E Scott | 15 | Daughter | — | Massachusetts |
| 69 | June Scott | 14 | Daughter | — | Massachusetts |
| 70 | Marion L Scott | 12 | Daughter | — | Massachusetts |
| 71 | Ruth M L Scott | 10 | Daughter | — | Massachusetts |
| 72 | Patrick Dalton | 62 | Head | Night Watchman | Irish Free State |
| 73 | Catherine Dalton | 62 | Wife | — | Irish Free State |
| 74 | James Dalton THIS PERSON | 29 | Son | Elementary Teacher | Massachusetts |
| 75 | Mary Dalton | 26 | Daughter | Nurse | Massachusetts |
| 76 | Elizabeth Dalton | 24 | Daughter | Elementary Teacher | Massachusetts |
| 77 | Catherine Dalton | 19 | Daughter | — | Massachusetts |
| 78 | Louise Dalton | 17 | Daughter | — | Massachusetts |
| 79 | Joseph Di Carlo | 23 | Head | Furniture Mover | Massachusetts |
| 80 | Phyllis Di Carlo | 22 | 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)