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Thomas Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Thomas Donnelly across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 9-person household.
Age 24
b. ~1916
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Donnelly |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | BOSTON |
| 1935 Residence (County) | SUFFOLK |
| Additional Details | |
| Occupation | Post Clerk |
| Industry | Post Station |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 200 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Post Clerk |
| Township / Ward | Boston |
| Est. Birth Year | ~1916 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mary Donnelly | Spouse | — | 52 | ~1888 |
| Richard Donnelly | Son | — | 10 | ~1930 |
| James Donnelly | Son | — | 20 | ~1920 |
| Anna Weeks | Other | — | 61 | ~1879 |
| Claire Donnelly | Daughter | — | 15 | ~1925 |
| Thomas Donnelly | Son | — | 24 | ~1916 |
| Edward Donnelly | Son | — | 13 | ~1927 |
| Robert Donnelly | Head | — | 54 | ~1886 |
| Marion Donnelly | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 14
Suffolk, Massachusetts · implied b. ~1916 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Thomas F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 24
Suffolk-County, Massachusetts · implied b. ~1916 — 9 household members
| Surname | Donnelly |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | BOSTON |
| 1935 Residence (County) | SUFFOLK |
| Occupation | Post Clerk |
| Industry | Post Station |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 200 |
| 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 Thomas Donnelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Donnelly
Son · 1940 · age 24 · b. ~1916 · Massachusetts
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Sibling
Edward Donnelly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Donnelly
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Donnelly
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Donnelly
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Donnelly
Sibling · 1940 · age 10
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01680-00201)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth J. Ives | 72 | Head | — | England |
| 42 | Stella M. Ives | 48 | Daughter | Teacher | Connecticut |
| 43 | David G. Mackie | 69 | Head | Printer | Scotland |
| 44 | Mary E. Mackie | 67 | Wife | — | Canada-English |
| 45 | Charles W. Osborne | 72 | Head | Stationary Engineer | Canada-English |
| 46 | Mary I. Osborne | 65 | Wife | — | Canada-English |
| 47 | Lois Doolittle | 44 | Daughter | — | Canada-English |
| 48 | Milton Doolittle | 12 | Grandson | — | Massachusetts |
| 49 | John J. Hallisey | 35 | Head | Liquor Salesman | Massachusetts |
| 50 | Agnes B. Hallisey | 29 | Wife | — | Massachusetts |
| 51 | David J. Hallisey | 0 | Son | — | Massachusetts |
| 52 | Robert E. Donnelly | 54 | Head | School Custodian | Massachusetts |
| 53 | Mary B. Donnelly | 52 | Wife | — | Massachusetts |
| 54 | Thomas E. Donnelly THIS PERSON | 24 | Son | Post Clerk | Massachusetts |
| 55 | Marion V. Donnelly | 23 | Daughter | — | Massachusetts |
| 56 | James P. Donnelly | 20 | Son | First Aid Man | Massachusetts |
| 57 | Claire A. Donnelly | 15 | Daughter | — | Massachusetts |
| 58 | Edward J. Donnelly | 13 | Son | — | Massachusetts |
| 59 | Richard Donnelly | 10 | Son | — | Massachusetts |
| 60 | Anna A. Weeks | 61 | Sister-in-law | — | Massachusetts |
| 61 | Clarence Mullen | 51 | Head | Repairman Telephone | Massachusetts |
| 62 | Isabel Mullen | 47 | Wife | — | Massachusetts |
| 63 | Richard Mullen | 13 | Son | — | Massachusetts |
| 64 | Algot W. Larsson | 55 | Head | Motorman | Sweden |
| 65 | Lillian S. Larsson | 56 | Wife | — | Vermont |
| 66 | Alcott Larsson | 19 | Son | — | Massachusetts |
| 67 | Daniel J. Mcintyre | 68 | Head | Clerk | Massachusetts |
| 68 | Charles J. Mcintyre | 39 | Son | General Office Worker | Massachusetts |
| 69 | Albert E. Beaton | 41 | Head | Commission Salesman | Massachusetts |
| 70 | Annie E. Beaton | 41 | Wife | — | Massachusetts |
| 71 | Marion J. Beaton | 14 | Daughter | — | Massachusetts |
| 72 | Hugh R. Beaton | 12 | Son | — | Massachusetts |
| 73 | Nancy P. Beaton | 11 | Daughter | — | Massachusetts |
| 74 | Albert E. Beaton | 8 | Son | — | Massachusetts |
| 75 | William P. Beaton | 7 | Son | — | Massachusetts |
| 76 | Adrienne E. Beaton | 5 | Daughter | — | Massachusetts |
| 77 | Patrick Murphy | 72 | Head | — | Irish Free State |
| 78 | Annie T. Murphy | 63 | Wife | — | Irish Free State |
| 79 | Helen Murphy | 28 | Daughter | Teacher | Massachusetts |
| 80 | William J. Murphy | 26 | Son | Salesman | 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)