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John Donovan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Donovan across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Donovan |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Truckman |
| Industry | transportation |
| Class of Worker | PW |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Truckman |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1882 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Donovan | Head | — | 58 | ~1882 |
| Mabel Donovan | Son | — | 18 | ~1922 |
| John Donovan | Son | — | 10 | ~1930 |
| Mary Donovan | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 33
Middlesex, Massachusetts · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | English |
| Occupation | Yes |
| Industry | Manager |
| Class of Worker | Coal Co. |
| Can Read | English |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 45
Middlesex, Massachusetts · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Motorman |
| Industry | Street railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 58
Middlesex-County, Massachusetts · implied b. ~1882 — 4 household members
| Surname | Donovan |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Truckman |
| Industry | transportation |
| Class of Worker | PW |
| Highest Grade | No 8 |
| 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 John Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Donovan
Head · 1940 · age 58 · b. ~1882 · 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-t0627-01705-00141)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Barbara G. Everson | 25 | daughter | Manager | Massachusetts |
| 42 | Ernest A. Zachrisson | 47 | Head | Manager | Sweden |
| 43 | Annie H. Zachrisson | 46 | Wife | — | Sweden |
| 44 | Ernest H. Zachrisson | 25 | Son | Truck Driver | Massachusetts |
| 45 | Chester S. Zachrisson | 15 | Son | — | Massachusetts |
| 46 | Vance C. Baliswell | 34 | Head | Manager | Maine |
| 47 | Olive P. Baliswell | 32 | Wife | — | England |
| 48 | John F. Mcniel | 56 | Head | Painter | England |
| 49 | Ruth M. Mcniel | 23 | Daughter | Nurse | Massachusetts |
| 50 | Anthony Bougas | 47 | Head | Manager | Greece |
| 51 | Helen M. Bougas | 44 | Wife | — | Sweden |
| 52 | George C. Bougas | 23 | Son | Counter Man | Massachusetts |
| 53 | Barbara A. Bougas | 18 | daughter | — | Massachusetts |
| 54 | Magaret Bougas | 15 | daughter | — | Massachusetts |
| 55 | Robert G. Bougas | 14 | Son | — | Massachusetts |
| 56 | Hannah C. Hall | 66 | mother-in-law | — | Sweden |
| 57 | Signe J. Hall | 43 | sister-in-law | Bookkeeper | Massachusetts |
| 58 | Elly E. Hall | 33 | sister-in-law | Clerk | Massachusetts |
| 59 | Ruth Alger | 21 | Lodger | Clerk | Massachusetts |
| 60 | Lena Monroe | 59 | Head | Teacher | Massachusetts |
| 61 | Evelyn Boynton | 52 | Lodger | — | Massachusetts |
| 62 | Leroy F. Noyes | 58 | Head | Clerk | New Hampshire |
| 63 | Ida R. Noyes | 50 | Wife | Bookkeeper | Vermont |
| 64 | William S. Noyes | 14 | Son | Clerk | Massachusetts |
| 65 | Nicholas Worthington | 42 | Head | Clerk | Massachusetts |
| 66 | Edith Worthington | 34 | Wife | — | Massachusetts |
| 67 | Gunther Dier | 59 | Head | Cook | Germany |
| 68 | — | None | — | — | — |
| 69 | Wealthy B. Cooke | 67 | Head | — | England |
| 70 | Ruth Emmerson | 46 | Lodger | Clerk | Newfoundland |
| 71 | Lavinia Emmerson | 15 | Lodger | — | Massachusetts |
| 72 | Henry Stirling | 55 | Head | Carpenter | Scotland |
| 73 | Agnes S. Stirling | 56 | Wife | — | Scotland |
| 74 | Henry G. Stirling | 24 | Son | Operator | Massachusetts |
| 75 | Allen C. Stirling | 21 | Son | Draftsman | Massachusetts |
| 76 | John R. Stirling | 16 | Son | — | Massachusetts |
| 77 | John J. Donovan THIS PERSON | 58 | Head | Truckman | Massachusetts |
| 78 | Mary E. Donovan | 52 | Wife | — | Massachusetts |
| 79 | Mabel R. Donovan | 18 | Son | Stenographer | Massachusetts |
| 80 | John L. Donovan | 10 | 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)