MD
Mary Dolan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Dolan across the 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 6-person household.
Age 13
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Dolan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | City Of Boston |
| Est. Birth Year | ~1917 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Dolan | Spouse | — | 37 | ~1893 |
| John Dolan | Son | — | 15 | ~1915 |
| Mary Dolan | Daughter | — | 13 | ~1917 |
| Robert Dolan | Son | — | 4 | ~1926 |
| Joseph Dolan | Son | — | 16 | ~1914 |
| Edward Dolan | Head | — | 38 | ~1892 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dolan |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 13
Suffolk, Massachusetts · implied b. ~1917 — 6 household members
| Surname | Dolan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| 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 Mary Dolan across 2 US Census years (1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dolan
Daughter · 1930 · age 13 · b. ~1917 · Massachusetts
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Sibling
Joseph Dolan
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dolan
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Dolan
Sibling · 1930 · age 4
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
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
39 people indexed on this census page (ia:1930:massachusettscensus00reel950:0320)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward H Dolan | 38 | Head | Chauffeur | Massachusetts |
| 2 | Agnes Dolan | 37 | Wife | — | Massachusetts |
| 3 | Joseph Dolan | 16 | Son | — | Massachusetts |
| 4 | John Dolan | 15 | Son | — | Massachusetts |
| 5 | Mary Dolan THIS PERSON | 13 | Daughter | — | Massachusetts |
| 6 | Robert Dolan | 4 | Son | — | Massachusetts |
| 7 | Thomas Mccarrick | 30 | Head | Letter Carrier | Massachusetts |
| 8 | Margaret Mccarrick | 26 | Wife | — | Massachusetts |
| 9 | Thomas Mccarrick | 6 | Son | — | Massachusetts |
| 10 | Eileen Mccarrick | 5 | Daughter | — | Massachusetts |
| 11 | Leonard Mccarrick | 0 | Son | — | Massachusetts |
| 12 | John W Doherty | 31 | Head | Edge Trimmer | Massachusetts |
| 13 | Mary E Doherty | 31 | Wife | — | Massachusetts |
| 14 | Gertrude Doherty | 6 | Daughter | — | Massachusetts |
| 15 | Louise Doherty | 5 | Daughter | — | Massachusetts |
| 16 | John P Uminski | 35 | Head | Machinist | Poland |
| 17 | Josephine Uminski | 33 | Wife | — | Poland |
| 18 | Jeanette Uminski | 13 | Daughter | — | Massachusetts |
| 19 | Irene Uminski | 12 | Daughter | — | Massachusetts |
| 20 | Henry Uminski | 10 | Son | — | Massachusetts |
| 21 | William Uminski | 6 | Son | — | Massachusetts |
| 22 | Louis Salvi | 40 | Head | Merchant | Italy |
| 23 | Louise Salvi | 43 | Wife | — | Italy |
| 24 | Peter Salvi | 12 | Son | — | Massachusetts |
| 25 | Mario Salvi | 10 | Son | — | Massachusetts |
| 26 | Victor Salvi | 7 | Son | — | Massachusetts |
| 27 | John Salvi | 5 | Son | — | Massachusetts |
| 28 | James A Dolan | 20 | Head | Painter Helper | Massachusetts |
| 29 | Hermina H Dolan | 21 | Wife | — | Germany |
| 30 | Edward A Dolan | 1 | Son | — | Massachusetts |
| 31 | Helen A Dolan | 0 | Daughter | — | Massachusetts |
| 34 | Richard J Doyle | 30 | R | Const. Inspector | Massachusetts |
| 35 | Elizabeth Doyle | 36 | Wife | — | Scotland |
| 36 | Richard J Doyle | 4 | Son | — | Massachusetts |
| 37 | Eileen M Doyle | 1 | Daughter | — | Massachusetts |
| 38 | Hugh Thiele | 58 | R | President | North Ireland |
| 39 | Mary Thiele | 57 | Wife | — | Irish Free State |
| 40 | Leah T Chapman | 58 | R | Stitcher | Pennsylvania |
| 41 | Thomas Maxwell | 34 | Son | Clerk | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)