MD
Mary Devine — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Devine across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 6-person household.
Age 14
b. ~1926
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Devine |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Mary Devine | Head | — | 49 | ~1891 |
| John Devine | Son | — | 15 | ~1925 |
| James Devine | Son | — | 11 | ~1929 |
| William Devine | Son | — | 13 | ~1927 |
| Mary Devine | Daughter | — | 14 | ~1926 |
| Francis Devine | Son | — | 8 | ~1932 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 4
Suffolk, Massachusetts · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Devine |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 14
Suffolk-County, Massachusetts · implied b. ~1926 — 6 household members
| Surname | Devine |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H-1 |
| 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 Devine across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Devine
Daughter · 1940 · age 14 · b. ~1926 · Massachusetts
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Sibling
James Devine
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Devine
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Devine
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Devine
Sibling · 1940 · 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
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-t0627-01659-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Collins | 14 | Head | — | Massachusetts |
| 2 | Paul Collins | 13 | Son | — | Massachusetts |
| 3 | Edwin Collins | 2 | Son | — | Massachusetts |
| 4 | Gertrude Fishlow | 61 | Head | — | Germany |
| 5 | Louis Fishlow | 33 | Son | Warehouse Clerk | Massachusetts |
| 6 | Mary Devine | 49 | Head | — | Eire |
| 7 | John Devine | 15 | Son | — | Massachusetts |
| 8 | Mary G. Devine THIS PERSON | 14 | Daughter | — | Massachusetts |
| 9 | William Devine | 13 | Son | — | Massachusetts |
| 10 | James Devine | 11 | Son | — | Massachusetts |
| 11 | Francis Devine | 8 | Son | — | Massachusetts |
| 12 | Martha Hegarty | 73 | Head | — | Massachusetts |
| 13 | William F. Bailey | 50 | Head | City Fireman | Massachusetts |
| 14 | Catherine E. Bailey | 47 | Wife | — | Massachusetts |
| 15 | William Bailey | 22 | Son | Meter Reader | Massachusetts |
| 16 | John Bailey | 19 | Son | — | Massachusetts |
| 17 | Helen Bailey | 17 | Daughter | — | Massachusetts |
| 18 | Joseph Bailey | 15 | Son | — | Massachusetts |
| 19 | Catherine Bailey | 14 | Daughter | — | Massachusetts |
| 20 | James P. Brennan | 62 | Brother in law | — | Scotland |
| 21 | Bridget A. Drey | 68 | Head | — | Eire |
| 22 | Thomas J. Drey | 30 | Son | File Clerk | Massachusetts |
| 23 | Annie Shea | 68 | Sister | — | Eire |
| 24 | Mary Mccreasty | 66 | Head | — | Eire |
| 25 | Sarah Mccreasty | 62 | Sister | Waitress | Eire |
| 26 | Jeremiah Hurley | 53 | Head | Longshoreman | Eire |
| 27 | Mary Hurley | 46 | Wife | — | Eire |
| 28 | John Hurley | 22 | Son | Freight Handler | Massachusetts |
| 29 | Catherine Hurley | 19 | Daughter | Sewing | Massachusetts |
| 30 | Bernard Hurley | 18 | Son | — | Massachusetts |
| 31 | Anna Hurley | 13 | Daughter | — | Massachusetts |
| 32 | Mary Hurley | 11 | Daughter | — | Massachusetts |
| 33 | Gerald Hurley | 7 | Son | — | Massachusetts |
| 34 | Joseph Hurley | 1 | Son | — | Massachusetts |
| 35 | Ellen F. Mcdonan | 55 | Head | — | Massachusetts |
| 36 | John J. Mcdonan | 67 | Brother | Packer-Shipper | Massachusetts |
| 37 | Mildred Parcellin | 23 | Niece | Sewing Dresses | Massachusetts |
| 38 | Timothy S. Buckley | 46 | Head | Fireman | Massachusetts |
| 39 | Margaret E. Buckley | 47 | Wife | — | Massachusetts |
| 40 | Walter Buckley | 16 | Son | — | 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)