TM
Thomas Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Thomas Mcdonough across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McDonough |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | M |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1923 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mcdonough | Son | — | 17 | ~1923 |
| Martin Mcdonough | Son | — | 21 | ~1919 |
| Anne Mcdonough | Daughter | — | 13 | ~1927 |
| Mary Mcdonough | Daughter | — | 19 | ~1921 |
| John Mcdonough | Son | — | 15 | ~1925 |
| John Mcdonough | Head | — | 51 | ~1889 |
| Nora Mcdonough | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| 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
Suffolk-County, Massachusetts
Son, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 7 household members
| Surname | McDonough |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | M |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Industry | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| 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 Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mcdonough
Son · 1940 · age 17 · b. ~1923 · Massachusetts
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Sibling
Anne Mcdonough
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Mcdonough
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcdonough
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonough
Sibling · 1940 · age 15
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-t0627-01674-00211)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Timothy J. Mahoney | 55 | Head | Mail Clerk | New York |
| 2 | Frances G. D. Mahoney | 44 | Wife | — | Massachusetts |
| 3 | Francis T. Mahoney | 15 | Son | Delivery Boy | Massachusetts |
| 4 | Gerald E. Mahoney | 14 | Son | Delivery Boy | Massachusetts |
| 5 | Geraldine M. Mahoney | 14 | Daughter | — | Massachusetts |
| 6 | Mary E. Packard | 74 | Mother-in-law | — | Massachusetts |
| 7 | Robert D. Johnston | 52 | Head | Plasterer | Scotland |
| 8 | Mary Johnston | 51 | Wife | — | Scotland |
| 9 | Elizabeth Johnston | 24 | Daughter | Trained Nurse | Massachusetts |
| 10 | William Johnston | 21 | Son | Truck Driver | Scotland |
| 11 | Charles H. Goudreau | 35 | Head | Sheet Metal Worker | Massachusetts |
| 12 | Anna F. Goudreau | 40 | Wife | — | Massachusetts |
| 13 | George J. Miller | 20 | Stepson | Sheet Metal Worker | Massachusetts |
| 14 | Andrew Miller | 19 | Stepson | Laborer | Massachusetts |
| 15 | Edward J. Miller | 14 | Stepson | — | Massachusetts |
| 16 | Emery M. Verrin | 58 | Uncle | — | Massachusetts |
| 17 | Ruth X. Muldoon | 38 | Head | — | Massachusetts |
| 18 | Richard Muldoon | 9 | Son | — | Massachusetts |
| 19 | Joan Muldoon | 7 | Daughter | — | Massachusetts |
| 20 | Donald Muldoon | 2 | Son | — | Massachusetts |
| 21 | John Mcdonough | 51 | Head | Freight Handler | Eire |
| 22 | Nora B. Mcdonough | 52 | Wife | — | Eire |
| 23 | Martin Mcdonough | 21 | Son | Sales-Clerk | Massachusetts |
| 24 | Mary Mcdonough | 19 | Daughter | Stenographer | Massachusetts |
| 25 | Thomas Mcdonough THIS PERSON | 17 | Son | — | Massachusetts |
| 26 | John Mcdonough | 15 | Son | — | Massachusetts |
| 27 | Anne Mcdonough | 13 | Daughter | — | Massachusetts |
| 28 | Margaret M. Griffin | 45 | Head | — | Massachusetts |
| 29 | Leo R. Griffin | 21 | Son | Upholstery Cleaner | Massachusetts |
| 30 | Florence Griffin | 18 | Daughter | — | Massachusetts |
| 31 | George E. Connor | 21 | Daughter | Laborer | Massachusetts |
| 32 | John Connor | 4 | Grandson | — | Massachusetts |
| 33 | Leo Connor | 3 | Grandson | — | Massachusetts |
| 34 | Albert Bonnevier | 20 | Nephew | Truck Driver | Massachusetts |
| 35 | Florence Bonnevier | 9 | Niece | — | Massachusetts |
| 36 | The Following Persons Enumerated In Block 4 | None | — | — | — |
| 37 | Joseph L. Dean | 63 | Head | Mechanical Engineer | Massachusetts |
| 38 | Ann W. Dean | 60 | Wife | — | Massachusetts |
| 39 | Joseph L. Jr. Dean | 34 | Son | Auditor Field | Massachusetts |
| 40 | Kevin Dean | 30 | Son | Attorney | 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)