MF
Mary Finn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Finn across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Finn |
| Given Name | Mary C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1910 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Finn | Head | — | 32 | ~1908 |
| Edward Finn | Son | — | 7 | ~1933 |
| Carol Finn | Daughter | — | 1 | ~1939 |
| Mary Finn | Daughter | — | 9 | ~1931 |
| Ann Finn | Daughter | — | 6 | ~1934 |
| Mary Finn | Spouse | — | 30 | ~1910 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 20
Suffolk, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 19 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Machine Op |
| Industry | Dept Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 30
Suffolk-County, Massachusetts · implied b. ~1910 — 6 household members
| Surname | Finn |
| Given Name | Mary C. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| 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 Mary Finn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Finn
Spouse · 1940 · age 30 · b. ~1910 · 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 — 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-t0627-01675-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Ramunni | 53 | Head | Instalr | Massachusetts |
| 2 | Helen Ramunni | 52 | Wife | — | Massachusetts |
| 3 | Helen Ramunni | 18 | Daughter | — | Massachusetts |
| 4 | Abigail Ramunni | 16 | Daughter | — | Massachusetts |
| 5 | Pauline Ramunni | 15 | Daughter | — | Massachusetts |
| 6 | Geraldine Ramunni | 12 | Daughter | — | Massachusetts |
| 7 | Virginia Ramunni | 9 | Daughter | — | Massachusetts |
| 8 | Aldore Houde | 51 | Head | Operator | Montreal |
| 9 | May Houde | 49 | Wife | — | Massachusetts |
| 10 | Ruth Houde | 24 | Daughter | Stenog | Massachusetts |
| 11 | Mildred Houde | 22 | Daughter | Laborer | Massachusetts |
| 12 | Eleanor Houde | 19 | Daughter | Phone | Massachusetts |
| 13 | Wallace Houde | 16 | Son | — | Massachusetts |
| 14 | Lawrence Houde | 14 | Son | — | Massachusetts |
| 15 | Edna Houde | 13 | Daughter | — | Massachusetts |
| 16 | Alice Grady | 61 | Lodger | — | Massachusetts |
| 17 | Catherine Givens | 71 | Lodger | — | Massachusetts |
| 18 | Cecilia Welch | 70 | Lodger | — | Massachusetts |
| 19 | Margaret Donnelly | 20 | Lodger | — | Massachusetts |
| 20 | Charlotte Chapin | 70 | Lodger | — | Massachusetts |
| 21 | Arthur Evan | 40 | Head | Teacher | Massachusetts |
| 22 | Margaret Evan | 32 | Wife | — | Massachusetts |
| 23 | Arthur L. Evan | 10 | Son | — | Massachusetts |
| 24 | Jean Evan | 9 | Daughter | — | Massachusetts |
| 25 | Margaret Evan | 8 | Daughter | — | Massachusetts |
| 26 | Marion Evan | 4 | Daughter | — | Massachusetts |
| 27 | Patricia Evan | 3 | Daughter | — | Massachusetts |
| 28 | Frank G. Welsh | 48 | Head | Ironman | Maine |
| 29 | Alice Welsh | 48 | Wife | — | Massachusetts |
| 30 | Alice Gorman | 50 | Lodger | Teacher | Massachusetts |
| 31 | Thomas Meade | 55 | Head | Salesman | Massachusetts |
| 32 | Margaret Meade | 53 | Wife | — | Massachusetts |
| 33 | Edward Meade | 27 | Son | Cutter | Massachusetts |
| 34 | John C. Meade | 13 | Son | — | Massachusetts |
| 35 | Edward Finn | 32 | Head | Receiving Clerk | Massachusetts |
| 36 | Mary C. Finn THIS PERSON | 30 | Wife | — | Massachusetts |
| 37 | Mary Finn | 9 | Daughter | — | Massachusetts |
| 38 | Edward Finn | 7 | Son | — | Massachusetts |
| 39 | Ann Finn | 6 | Daughter | — | Massachusetts |
| 40 | Carol Ann Finn | 1 | Daughter | — | 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)