JD
John Donohue — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Donohue across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Jeremiah — first a son (b.~1883), then head of a 6-person household.
Age 57
b. ~1883
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Donohue |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1883 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Donohue | Son | — | 57 | ~1883 |
| William Donohue | Son | — | 48 | ~1892 |
| Joseph Donohue | Son | — | 52 | ~1888 |
| Frank Donohue | Son | — | 54 | ~1886 |
| Jeremiah Donohue | Head | — | 53 | ~1887 |
| Mary Donohue | Daughter | — | 57 | ~1883 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 38
Suffolk, Massachusetts · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | John |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Machinist |
| Industry | Navy Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Other, age 46
Suffolk, Massachusetts · implied b. ~1884 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | John |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Brakeman |
| Industry | B. & M. R.R. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 57
Suffolk-County, Massachusetts · implied b. ~1883 — 6 household members
| Surname | Donohue |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Suffolk |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 John Donohue across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jeremiah Donohue (~0.50 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.5
Father
Jeremiah Donohue
b. ~1887
Source father
● Household
· direct · ~0.5
This person
Anchor record
John Donohue
Son · 1940 · age 57 · b. ~1883 · Massachusetts
★ You are viewing this record
Sibling
Mary Donohue
Sibling · 1940 · age 57
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Donohue
Sibling · 1940 · age 48
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Donohue
Sibling · 1940 · age 54
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Donohue
Sibling · 1940 · age 52
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-t0627-01668-00044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas | 3 | Son | — | Massachusetts |
| 2 | Richard Nevis | 22 | Son in law | Machinist | Massachusetts |
| 3 | Mildred Nevis | 18 | Daughter | — | Connecticut |
| 4 | Norbert Mcnalley | 29 | Head | Senior Clerk | Massachusetts |
| 5 | Marion Mcnalley | 25 | Wife | — | Massachusetts |
| 6 | Judith Mcnalley | 3 | Daughter | — | Massachusetts |
| 7 | Peter Merenda | 31 | Head | Civil Engineer | Massachusetts |
| 8 | Frances Merenda | 29 | Wife | — | Canada-English |
| 9 | Peter Merenda | 1 | Son | — | Massachusetts |
| 10 | Armand Lanthier | 55 | Head | Rodman | New York |
| 11 | Mary Lanthier | 35 | Wife | — | Massachusetts |
| 12 | May Young | 64 | Head | — | Irish Free State |
| 13 | David Baird | 65 | Head | — | Irish Free State |
| 14 | Annie Baird | 64 | Wife | — | Irish Free State |
| 15 | Thomas Conley | 66 | Head | — | Massachusetts |
| 16 | Delia T. Conley | 62 | Wife | — | Irish Free State |
| 17 | Hannah O'Connell | 64 | Head | — | Irish Free State |
| 18 | Daughter Theresa | None | F | Dress Factory | — |
| 19 | John Healy | 52 | Head | Beer Factory | Irish Free State |
| 20 | John J. Healy | 19 | Son | Sales Clerk | Massachusetts |
| 21 | Francis Mason | 19 | Lodger | New Worker | Massachusetts |
| 22 | Thomas Mason | 29 | Lodger | Helper | Massachusetts |
| 23 | Henry W. Bird | 68 | Head | State Hospital | Canada-English |
| 24 | Margaret Bird | 57 | Wife | — | West Ireland |
| 25 | Jack W. Scott | 23 | Lodger | Wrecking Buildings | Arkansas |
| 26 | Cleo Scott | 22 | Wife | — | Arkansas |
| 27 | Jack W. Jr. Scott | 2 | Son | — | Massachusetts |
| 28 | James H. Rufian | 58 | Lodger | Wrecker | Switzerland |
| 29 | Jeremiah Donohue | 53 | Head | — | Irish Free State |
| 30 | Mary J. Donohue | 57 | Daughter | Bookkeeper | Massachusetts |
| 31 | John Donohue THIS PERSON | 57 | Son | — | Massachusetts |
| 32 | Frank Donohue | 54 | Son | Mechanic | Massachusetts |
| 33 | Joseph Donohue | 52 | Son | Mechanic | Massachusetts |
| 34 | William Donohue | 48 | Son | Mechanic | Massachusetts |
| 35 | Catherine Ganey | 56 | Head | Maid-Ward | Massachusetts |
| 36 | Agnes Ganey | 53 | Sister | Dipper | Massachusetts |
| 37 | Katharine Coughlan | 71 | Head | — | Massachusetts |
| 38 | Mary A. Quinn | 30 | Lodger | — | Massachusetts |
| 39 | Thomas Mulhern | 60 | Head | Restaurant | Irish Free State |
| 40 | Julia Mulhern | 49 | Wife | — | Irish Free State |
Pedigree Summary
John + 4 siblings
Gen 1 · 1 parents
~0.5
Max depth 4 (1900–1950 window)
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)