MD
Mary Downey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Downey across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 5-person household.
Age 17
b. ~1923
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Downey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1923 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Virginia Downey | Daughter | — | 12 | ~1928 |
| James Downey | Son | — | 15 | ~1925 |
| Catherine Downey | Spouse | — | 43 | ~1897 |
| Mary Downey | Daughter | — | 17 | ~1923 |
| James Downey | Head | — | 47 | ~1893 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 7
Suffolk, Massachusetts · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Downey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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 |
1940
Suffolk-County, Massachusetts
Daughter, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 5 household members
| Surname | Downey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | Hs 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 Mary Downey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Downey
Daughter · 1940 · age 17 · b. ~1923 · Massachusetts
★ You are viewing this record
Sibling
Virginia Downey
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Downey
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-t0627-01669-00805)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Kelly | 24 | Wife | — | Massachusetts |
| 42 | Raymond Kelly | 2 | Son | — | Massachusetts |
| 43 | Clarence H. Faulkner | 70 | Head | — | Massachusetts |
| 44 | Annie Faulkner | 69 | Wife | — | Ireland |
| 45 | Randolph Tanner | 31 | Head | Timekeeper | Canada |
| 46 | Marcella Tanner | 27 | Wife | — | Massachusetts |
| 47 | Thomas Tanner | 2 | Son | — | Massachusetts |
| 48 | Elaine Tanner | 0 | Daughter | — | Massachusetts |
| 49 | Eleanor M. Moran | 31 | Head | — | Massachusetts |
| 50 | Edward F. Moran | 10 | Son | — | Massachusetts |
| 51 | Jane B. Moran | 9 | Daughter | — | Massachusetts |
| 52 | Paula L. Moran | 3 | Daughter | — | Massachusetts |
| 53 | Angus M. Macleod | 47 | Head | Carpenter | Canada Eng |
| 54 | Florence Macleod | 34 | Wife | — | Canada Eng |
| 55 | Arthur G. Macleod | 7 | Son | — | Massachusetts |
| 56 | Kenneth J. Macleod | 5 | Son | — | Massachusetts |
| 57 | Anthony J. Lemay | 32 | Head | Officer | Massachusetts |
| 58 | Theresa Lemay | 32 | Wife | — | Italy |
| 59 | Janet T. Lemay | 6 | Daughter | — | Massachusetts |
| 60 | Betty J. Lemay | 1 | Daughter | — | Massachusetts |
| 61 | Patrick Doyle | 56 | Head | Car-Cleaner | Ireland |
| 62 | Ellen Doyle | 46 | Wife | — | Ireland |
| 63 | James Downey | 47 | Head | General Work | Ireland |
| 64 | Catherine Downey | 43 | Wife | — | Ireland |
| 65 | Mary Downey THIS PERSON | 17 | Daughter | — | Massachusetts |
| 66 | James Jr. Downey | 15 | Son | — | Massachusetts |
| 67 | Virginia Downey | 12 | Daughter | — | Massachusetts |
| 68 | William Drummey | 32 | Head | Taxi-Driver | Massachusetts |
| 69 | Dorothy Drummey | 32 | Wife | — | New York |
| 70 | Jeanne Drummey | 12 | Daughter | — | Massachusetts |
| 71 | Doren Drummey | 9 | Daughter | — | Massachusetts |
| 72 | Sheila Drummey | 4 | Daughter | — | Massachusetts |
| 73 | William C. Drummey | 2 | Son | — | Massachusetts |
| 74 | John E. Haine | 30 | Sister-in-law | Clerk | New York |
| 75 | Elizabeth Bowen | 70 | Head | — | Massachusetts |
| 76 | Harriett Bowen | 65 | Sister | — | Massachusetts |
| 77 | Mary Doran | 77 | Lodger | — | Massachusetts |
| 78 | John H. Waters | 48 | Head | Gate-Man | Massachusetts |
| 79 | Mary Waters | 45 | Wife | — | Massachusetts |
| 80 | Richard Waters | 17 | 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)