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 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 1
b. ~1929
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Dolan |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1929 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Francis Dolan | Son | — | 11 | ~1919 |
| Catherine Dolan | Daughter | — | 13 | ~1917 |
| Dorothy Dolan | Daughter | — | 14 | ~1916 |
| Thomas Dolan | Head | — | 37 | ~1893 |
| Mary Dolan | Daughter | — | 1 | ~1929 |
| Thomas Dolan | Son | — | 9 | ~1921 |
| Margaret Dolan | Other | — | 36 | ~1894 |
| Margaret Dolan | Daughter | — | 15 | ~1915 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 1
Suffolk, Massachusetts · implied b. ~1929 — 8 household members
| Surname | Dolan |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 11
Suffolk-County, Massachusetts · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doloni |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Highest Grade | S 5 |
| 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 Mary Dolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dolan
Daughter · 1930 · age 1 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
Catherine Dolan
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Dolan
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Dolan
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dolan
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dolan
Sibling · 1930 · age 15
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
50 people indexed on this census page (ia:1930:massachusettscensus00reel949:0476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas G Rossos | 43 | Head | Storekeeper | Greece |
| 2 | Angela R Rossos | 33 | Wife | — | Greece |
| 3 | Georgia T Rossos | 10 | Daughter | — | Massachusetts |
| 4 | Tazone G Rossos | 8 | Daughter | — | Massachusetts |
| 5 | Marianthy T Rossos | 7 | Daughter | — | Massachusetts |
| 6 | George H Kantas | 45 | Boarder | Laborer | Greece |
| 7 | Mary J Freitas | 46 | Head | — | Irish Free State |
| 8 | Thomas J Freitas | 22 | Son | Bricklayer | Massachusetts |
| 9 | John F Freitas | 20 | Son | Chauffeur | Massachusetts |
| 10 | Margaret E Freitas | 16 | Daughter | — | Massachusetts |
| 11 | Josephine Freitas | 12 | Daughter | — | Massachusetts |
| 12 | Martin Gordon | 26 | Son-in-law | Chauffeur | Irish Free State |
| 13 | Mary A Gordon | 23 | Daughter | Inspector | Massachusetts |
| 14 | Clifford O Woodard | 47 | Head | Broker | Canada English |
| 15 | Marie G Woodard | 48 | Wife | — | Canada French |
| 16 | Margaret Mac Nicholas | 59 | Head | — | Irish Free State |
| 17 | Mary F Mac Nicholas | 35 | Daughter | Weaver | Massachusetts |
| 18 | Helen V Mac Nicholas | 31 | Daughter | Binder | Massachusetts |
| 19 | Sarah F Mac Nicholas | 29 | Daughter | Telephone Clerk | Massachusetts |
| 20 | Thomas J Dolan | 37 | Head | Conductor | Massachusetts |
| 21 | Margaret T Dolan | 36 | Wife-H | — | Massachusetts |
| 22 | Margaret R Dolan | 15 | Daughter | — | Massachusetts |
| 23 | Dorothy T Dolan | 14 | Daughter | — | Massachusetts |
| 24 | Catherine Dolan | 13 | Daughter | — | Massachusetts |
| 25 | Francis E Dolan | 11 | Son | — | Massachusetts |
| 26 | Thomas Dolan | 9 | Son | — | Massachusetts |
| 27 | Mary E Dolan THIS PERSON | 1 | Daughter | — | Massachusetts |
| 28 | William H Sentener | 43 | Head | Salesman | Canada English |
| 29 | Margaret Sentener | 42 | Wife-H | — | Canada English |
| 30 | Frederick A Sentener | 9 | Son | — | Canada English |
| 31 | Sarah E Sentener | 1 | Daughter | — | Canada English |
| 32 | George J Mitchell | 42 | Head | Book Binder | Massachusetts |
| 33 | Mae L Mitchell | 41 | Sister-H | — | Massachusetts |
| 34 | Frank C Mitchell | 40 | Brother | Roll Setter | Massachusetts |
| 35 | Margaret Twomey | 40 | Head | Music Teacher | Massachusetts |
| 36 | Julia M Hyde | 40 | Boarder | Housekeeper | Irish Free State |
| 37 | Marie Driscoll | 19 | Niece | — | Massachusetts |
| 38 | Maria C Cuevas | 16 | Boarder | — | Spain |
| 39 | George D Douse | 29 | Boarder | Cabman | Massachusetts |
| 40 | Frank U Grosshoff | 35 | Head | Armature | England |
| 41 | Virginia Sarkisian | 45 | Head | Repairer | Russia Turkey |
| 42 | Elizabeth M Sarkisian | 20 | Daughter | Bookkeeper | New York |
| 43 | John Sarkisian | 18 | Son | Cutter | New York |
| 44 | Kenneth Sarkisian | 11 | Son | — | New York |
| 45 | George Baras | 46 | Head | Manager | Greece |
| 46 | Irene Baras | 42 | Wife-H | Waitress | Northern Ireland |
| 47 | Harold Baras | 14 | Son | — | Rhode Island |
| 48 | Margaret Mason | 33 | Head | Laundress | Irish Free State |
| 49 | Richard F Mason | 12 | Son | — | Massachusetts |
| 50 | Robert J Mason | 10 | Son | — | Massachusetts |
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)