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Thomas Casey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Thomas Casey across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 5-person household.
Age 69
b. ~1871
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Casey |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Grocery Store |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1871 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| John Lynch | Other | — | 13 | ~1927 |
| Anne Casey | Daughter | — | 44 | ~1896 |
| Thomas Casey | Head | — | 69 | ~1871 |
| Irene Lynch | Daughter | — | 46 | ~1894 |
| Josephine Casey | Spouse | — | 69 | ~1871 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 49
Middlesex, Massachusetts · implied b. ~1871 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | Thomas |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Occupation | Chauffeur |
| Industry | Professional |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 60
Middlesex, Massachusetts · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | Thomas H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 69
Middlesex-County, Massachusetts · implied b. ~1871 — 5 household members
| Surname | Casey |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Clerk |
| Industry | Retail Grocery Store |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 800 |
| Highest Grade | Hs 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 Thomas Casey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Thomas Casey
Head · 1940 · age 69 · b. ~1871 · Massachusetts
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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-t0627-01702-00573)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary O'Brien | 72 | Head | — | Canada-Eng |
| 2 | Richard D Stewart | 24 | Grandson | Laborer | Massachusetts |
| 3 | Walter Richardson | 25 | Boarder | New Worker | Massachusetts |
| 4 | Thomas Flynn | 54 | Head | Laborer | Eire (Irish Free St) |
| 5 | Mary Flynn | 53 | Wife | — | Eire (Irish Free St) |
| 6 | Mary Flynn | 14 | Daughter | New Worker | Massachusetts |
| 7 | Edward Flynn | 13 | Son | — | Massachusetts |
| 8 | John Perry | 67 | Head | Furn. Finisher | Portugal |
| 9 | Mary Perry | 69 | Wife | — | Portugal |
| 10 | John Perry | 12 | Son | — | Massachusetts |
| 11 | Manuel Perry | 33 | Head | Laborer | Massachusetts |
| 12 | Ellen Perry | 35 | Wife | — | Massachusetts |
| 13 | Bill Perry | 12 | Son | — | Massachusetts |
| 14 | Dorothy Perry | 12 | Daughter | — | Massachusetts |
| 15 | Joseph Perry | 10 | Son | — | Massachusetts |
| 16 | Robert Perry | 9 | Son | — | Massachusetts |
| 17 | John Perry | 6 | Son | — | Massachusetts |
| 18 | Isuina Reis | 63 | Head | — | Portugal |
| 19 | Joseph Perry | 11 | Son | — | Massachusetts |
| 20 | Robert Perry | 9 | Son | — | Massachusetts |
| 21 | John Perry | 6 | Son | — | Massachusetts |
| 22 | Henry Stain | 59 | Head | Printer | New York |
| 23 | Edith Stain | 65 | Wife | — | Wales-Eng |
| 24 | Anton Foster | 65 | Head | Steward | Portugal |
| 25 | Florence Foster | 35 | Wife | — | Massachusetts |
| 26 | Edward Foster | 3 | Son | — | Massachusetts |
| 27 | Thomas Casey THIS PERSON | 69 | Head | Clerk | Massachusetts |
| 28 | Josephine Casey | 69 | Wife | — | Massachusetts |
| 29 | Anne Casey | 44 | Daughter | Pri. Secretary | Massachusetts |
| 30 | Irene Lynch | 46 | Daughter | Supervisor | Massachusetts |
| 31 | John Lynch | 13 | Grandson | — | Massachusetts |
| 32 | Jessie Carlos | 36 | Head | Wool Sorter | Portugal |
| 33 | Annie Carlos | 32 | Wife | — | Massachusetts |
| 34 | Elizabeth Carlos | 12 | Daughter | — | Massachusetts |
| 35 | William Reis | 29 | Head | Baker | Massachusetts |
| 36 | Carmina Reis | 25 | Wife | Hairdresser | Portugal |
| 37 | Mary Cruz | 21 | Sister-law | Hairdresser | Massachusetts |
| 38 | John O'Lileate | 64 | Head | — | Eire (Irish Free St) |
| 39 | William Harper | 27 | Son-in-law | Laborer | Massachusetts |
| 40 | Gertrude Harper | 27 | 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)