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John Donovan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Donovan across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine & Julia — first a son (b.~1911), then head of a 7-person household.
Age 29
b. ~1911
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Donovan |
| Given Name | John F. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Machine operator |
| Industry | Chocolate factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Machine Operator |
| Township / Ward | Boston |
| Est. Birth Year | ~1911 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Donovan | Daughter | — | 22 | ~1918 |
| Alice Donovan | Daughter | — | 23 | ~1917 |
| Louise Donovan | Daughter | — | 24 | ~1916 |
| John Donovan | Head | — | 56 | ~1884 |
| Robert Donovan | Son | — | 21 | ~1919 |
| John Donovan | Son | — | 29 | ~1911 |
| Julia Donovan | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 19
Suffolk, Massachusetts · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Chauffeur |
| Industry | Parcel delivery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 29
Suffolk-County, Massachusetts · implied b. ~1911 — 7 household members
| Surname | Donovan |
| Given Name | John F. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Machine operator |
| Industry | Chocolate factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| 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 John Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Donovan (~0.92 confidence) and mother Julia Donovan (~0.92 confidence) and father John Donovan (~0.92 confidence) and father John Donovan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Donovan
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Julia Donovan
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
John Donovan
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Donovan
b. ~1888
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Donovan
Son · 1940 · age 29 · b. ~1911 · Massachusetts
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Sibling
Louise Donovan
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Donovan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Donovan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Donovan
Sibling · 1940 · age 21
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-t0627-01676-00283)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eleanor Mclaughlin | 6 | daughter | — | Massachusetts |
| 2 | Mary Broderick | 25 | nephew | Housekeeper | Eire |
| 3 | John J. Donovan | 56 | head | Milk-Tapper | Massachusetts |
| 4 | Julia M. Donovan | 58 | wife | — | Massachusetts |
| 5 | John F. Donovan THIS PERSON | 29 | son | Machine Operator | Massachusetts |
| 6 | Louise M. Donovan | 24 | daughter | Waitress | Massachusetts |
| 7 | Alice M. Donovan | 23 | daughter | Operator | Massachusetts |
| 8 | Eleanor J. Donovan | 22 | daughter | Statistician | Massachusetts |
| 9 | Robert E. Donovan | 21 | son | New Worker | Massachusetts |
| 10 | Herbert J. Foley | 51 | head | Hacker | Massachusetts |
| 11 | Mary G. Foley | 52 | wife | — | Massachusetts |
| 12 | Adelaide Foley | 25 | daughter | Sales-Clerk | Massachusetts |
| 13 | Herbert Jr. Foley | 16 | son | — | Massachusetts |
| 14 | Alice T. Foley | 13 | daughter | — | Massachusetts |
| 15 | Michael Tavine | 80 | father-in-law | — | Massachusetts |
| 16 | Delia E. Tavine | 48 | sister-in-law | — | Massachusetts |
| 17 | Almira Miller | 84 | head | — | Massachusetts |
| 18 | Frank Foster | 36 | lodger | Painter | Massachusetts |
| 19 | Frederick N. Rae | 65 | head | — | Canada |
| 20 | Caroline F. Rae | 60 | wife | — | Massachusetts |
| 21 | William F. Hallenbeck | 79 | lodger | — | Massachusetts |
| 22 | Thomas W. Brady | 49 | head | Teacher | Massachusetts |
| 23 | Katherine Brady | 51 | sister | Teacher | Massachusetts |
| 24 | Sarah L. Brady | 56 | sister | — | Massachusetts |
| 25 | Margaret L. Brady | 47 | sister | — | Massachusetts |
| 26 | Daniel J. Doherty | 67 | head | Salesman | Massachusetts |
| 27 | Mary G. Doherty | 56 | wife | — | Massachusetts |
| 28 | Kevin F. Doherty | 25 | son | Clerk | Massachusetts |
| 29 | Frank P. Doherty | 23 | son | Clerk | Massachusetts |
| 30 | Andrew J. Loney | 42 | head | Legal Advisor | Massachusetts |
| 31 | Gertrude E. Loney | 42 | wife | — | Massachusetts |
| 32 | Brenda Loney | 9 | daughter | — | Massachusetts |
| 33 | Robert J. Loney | 7 | son | — | Massachusetts |
| 34 | Andrew J. Jr. Loney | 6 | son | — | Massachusetts |
| 35 | Kevin Loney | 4 | son | — | Massachusetts |
| 36 | Marcia Loney | 2 | daughter | — | Massachusetts |
| 37 | Frances Loney | 67 | mother | — | Massachusetts |
| 38 | Annie B. Smith | 71 | head | — | Maine |
| 39 | Blanche L. Smith | 48 | daughter | Statistician | Maine |
| 40 | Grace E. Smith | 47 | daughter | Secretary | Massachusetts |
Pedigree Summary
John + 4 siblings
Gen 1 · 4 parents
~0.92
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)