JM
James Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this James Mcdonough across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 298 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Boston City |
| Est. Birth Year | ~1920 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Catherine Mcdonough | Daughter | — | 16 | ~1924 |
| James Mcdonough | Son | — | 20 | ~1920 |
| Cecelia Mcdonough | Head | — | 49 | ~1891 |
| Anna Mcdonough | Daughter | — | 12 | ~1928 |
| Theresa Mcdonough | Daughter | — | 9 | ~1931 |
| John Mcdonough | Son | — | 23 | ~1917 |
| Frances Mcdonough | Son | — | 11 | ~1929 |
| Edward Mcdonough | Son | — | 21 | ~1919 |
| John Mcdonough | Son | — | 13 | ~1927 |
| Joseph Mcdonough | Son | — | 18 | ~1922 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Suffolk-County, Massachusetts
Son, age 20
Suffolk-County, Massachusetts · implied b. ~1920 — 10 household members
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 298 |
| 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 James Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcdonough
Son · 1940 · age 20 · b. ~1920 · Massachusetts
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Sibling
Joseph Mcdonough
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Mcdonough
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcdonough
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonough
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcdonough
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcdonough
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Mcdonough
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonough
Sibling · 1940 · age 13
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-t0627-01669-00770)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Daniel | 27 | Wife | — | Massachusetts |
| 2 | Donald Metard | 40 | Head | Sales Clerk | Massachusetts |
| 3 | Alice B. Metard | 33 | Wife | — | Massachusetts |
| 4 | Beverly Metard | 3 | Daughter | — | Massachusetts |
| 5 | Mary Murdock | 59 | Mother | — | Massachusetts |
| 6 | Nora Kashu | 50 | Head | Cook | Ireland |
| 7 | Anne Kashu | 20 | Daughter | Cashier | Massachusetts |
| 8 | Alice Kashu | 18 | Daughter | Clerk | Massachusetts |
| 9 | Patrick Brody | 29 | Head | Machinist | Ireland |
| 10 | Mary Brody | 27 | Wife | — | Ireland |
| 11 | Anne F. Brody | 2 | Daughter | — | Massachusetts |
| 12 | Cecelia Mcdonough | 49 | Head | — | Newfoundland |
| 13 | John Mcdonough | 23 | Son | Painter | Massachusetts |
| 14 | Edward Mcdonough | 21 | Son | Truck Driver | Massachusetts |
| 15 | James Mcdonough THIS PERSON | 20 | Son | Clerk | Massachusetts |
| 16 | Joseph Mcdonough | 18 | Son | Clerk | Massachusetts |
| 17 | Catherine Mcdonough | 16 | Daughter | — | Massachusetts |
| 18 | John Mcdonough | 13 | Son | — | Massachusetts |
| 19 | Anna Mcdonough | 12 | Daughter | — | Massachusetts |
| 20 | Frances Mcdonough | 11 | Son | — | Massachusetts |
| 21 | Theresa Mcdonough | 9 | Daughter | — | Massachusetts |
| 22 | Mary Kelley | 53 | Head | — | North Ireland |
| 23 | Edward Kelley | 23 | Son | Shipper | Massachusetts |
| 24 | Margaret Kelley | 21 | Son | Packer | Massachusetts |
| 25 | Luigi Salvi | 60 | Head | — | Italy |
| 26 | Louisa Salvi | 53 | Wife | Manager | Italy |
| 27 | Peter Salvi | 22 | Son | Clerk | Massachusetts |
| 28 | Marie Salvi | 20 | Son | Clerk | Massachusetts |
| 29 | Victoria Salvi | 17 | Son | Clerk | Massachusetts |
| 30 | John Salvi | 15 | Son | — | Massachusetts |
| 31 | James Urquhart | 34 | Head | Carpenter | Scotland |
| 32 | Gertrude Urquhart | 32 | Wife | Inspector | Massachusetts |
| 33 | James F. Urquhart | 5 | Son | — | Massachusetts |
| 34 | Peter Leahy | 24 | Head | Chef | Massachusetts |
| 35 | Helen Leahy | 33 | Wife | — | Massachusetts |
| 36 | Helen Leahy | 12 | Daughter | — | Massachusetts |
| 37 | Patricia Corey | 1 | Lodger | — | Massachusetts |
| 38 | Silvester Rey | 22 | Head | Truck Driver | Massachusetts |
| 39 | Eleanor Rey | 23 | Wife | — | Massachusetts |
| 40 | Lawrence Rey | 1 | Son | — | 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)