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John Dolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this John Dolan across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Dolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Dolan | Son | — | 18 | ~1922 |
| Lawrence Dolan | Son | — | 20 | ~1920 |
| John O'Toole | Other | — | 87 | ~1853 |
| Mary Dolan | Spouse | — | 47 | ~1893 |
| Paul Dolan | Son | — | 16 | ~1924 |
| Ann Dolan | Daughter | — | 13 | ~1927 |
| Robert Dolan | Son | — | 7 | ~1933 |
| Lawrence Dolan | Head | — | 50 | ~1890 |
Census Appearances
1930
Worcester, Massachusetts
Son, age 8
Worcester, Massachusetts · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dillon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 18
Worcester-County, Massachusetts · implied b. ~1922 — 8 household members
| Surname | Dolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 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 Dolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dolan
Son · 1940 · age 18 · b. ~1922 · Massachusetts
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Sibling
Lawrence Dolan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Dolan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Dolan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Dolan
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01718-00217)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Bailey | 65 | Sister in law | Chambermaid | Massachusetts |
| 42 | Ernest Nielsen | 31 | Head | Machinist | New York |
| 43 | Gladys Nielsen | 26 | Wife | — | Minnesota |
| 44 | Bruce Nielsen | 2 | Son | — | Minnesota |
| 45 | Otto Carlson | 68 | Head | Shuttle Maker | Sweden |
| 46 | Edith Carlson | 62 | Wife | — | Sweden |
| 47 | Lorraine Carlson | 27 | Daughter | Assistant Bookkeeper | Massachusetts |
| 48 | Henry Casey | 46 | Head | — | Massachusetts |
| 49 | Agnes Casey | 44 | Wife | — | Massachusetts |
| 50 | John Shaughnessy | 10 | Nephew | — | Massachusetts |
| 51 | William Shaughnessy | 42 | Brother in law | Assistant Manager | Massachusetts |
| 52 | Thomas Lively | 67 | Head | Salesman | Nova Scotia |
| 53 | Mary Lively | 52 | Wife | — | Massachusetts |
| 54 | George Courville | 40 | Head | Conductor | Massachusetts |
| 55 | Leona Courville | 40 | Wife | — | Massachusetts |
| 56 | Ronald Courville | 18 | Son | Chauffeur | Massachusetts |
| 57 | Janet Courville | 14 | Daughter | — | Massachusetts |
| 58 | Percy Ellis | 43 | Head | Musician / Horn Player | England |
| 59 | Elsie Ellis | 41 | Wife | — | Massachusetts |
| 60 | Barbara Ellis | 14 | Daughter | — | Massachusetts |
| 61 | Myron Holdredge | 70 | Head | Toolmaker | Connecticut |
| 62 | Martha Holdredge | 69 | Wife | — | Massachusetts |
| 63 | Edward Maguire | 65 | Head | Bartender | Massachusetts |
| 64 | Ellen Maguire | 69 | Wife | — | Massachusetts |
| 65 | Anna Maguire | 44 | Daughter | Stenographer | Massachusetts |
| 66 | Eveline Maguire | 42 | Daughter | — | Massachusetts |
| 67 | Mary Doyle | 60 | Head | — | Massachusetts |
| 68 | Catharine Doyle | 50 | Sister | Teacher | Massachusetts |
| 69 | Lawrence Dolan | 50 | Head | Line Man | Massachusetts |
| 70 | Mary Dolan | 47 | Wife | — | Massachusetts |
| 71 | Lawrence Dolan | 20 | Son | — | Massachusetts |
| 72 | John Dolan THIS PERSON | 18 | Son | — | Massachusetts |
| 73 | Paul Dolan | 16 | Son | — | Massachusetts |
| 74 | Ann Dolan | 13 | Daughter | — | Massachusetts |
| 75 | Robert Dolan | 7 | Son | — | Massachusetts |
| 76 | John O'Toole | 87 | Father in law | — | Massachusetts |
| 77 | Patrick Connors | 51 | Head | Repair Man | Massachusetts |
| 78 | Albina Connors | 47 | Wife | — | Massachusetts |
| 79 | Dorothy Connors | 22 | Daughter | Labeller | Massachusetts |
| 80 | Helena Connors | 18 | Daughter | Stringer | Massachusetts |
Related Census Records
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)