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Mary Warner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Warner across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Warner |
| Given Name | Mary |
| 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 | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Warner | Daughter | — | 14 | ~1926 |
| Ruth Warner | Daughter | — | 12 | ~1928 |
| Catherine Warner | Daughter | — | 7 | ~1933 |
| Wilfred Warner | Head | — | 41 | ~1899 |
| Willard Warner | Son | — | 1 | ~1939 |
| Charles Warner | Son | — | 6 | ~1934 |
| John Warner | Son | — | 8 | ~1932 |
| Catherine Warner | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 4
Suffolk, Massachusetts · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Werner |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| 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 14
Suffolk-County, Massachusetts · implied b. ~1926 — 8 household members
| Surname | Warner |
| Given Name | Mary |
| 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 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Warner across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Warner
Daughter · 1940 · age 14 · b. ~1926 · Massachusetts
★ You are viewing this record
Sibling
Willard Warner
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Warner
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Warner
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Warner
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Warner
Sibling · 1940 · age 8
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-t0627-01668-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilfred Warner | 41 | Head | Painter | Massachusetts |
| 2 | Catherine Warner | 36 | Wife | — | Ireland |
| 3 | Mary Warner THIS PERSON | 14 | Daughter | — | Massachusetts |
| 4 | Ruth Warner | 12 | Daughter | — | Massachusetts |
| 5 | John Warner | 8 | Son | — | Massachusetts |
| 6 | Catherine Warner | 7 | Daughter | — | Massachusetts |
| 7 | Charles Warner | 6 | Son | — | Massachusetts |
| 8 | Willard Warner | 1 | Son | — | Massachusetts |
| 9 | Ellen M. Killion | 59 | Head | Secretary | Massachusetts |
| 10 | Agnes G. Killion | 67 | Head | Secretary | Massachusetts |
| 11 | William H. Killion | 72 | Brother | — | Massachusetts |
| 12 | George L. Killion | 60 | Brother | — | Massachusetts |
| 13 | Nicholas Dowkanczuk | 55 | Head | — | Ukrainian |
| 14 | Mary Dowkanczuk | 52 | Wife | — | Ukrainian |
| 15 | Olga Dowkanczuk | 22 | Daughter | Stitcher | Massachusetts |
| 16 | John Dowkanczuk | 21 | Son | Machinist | Massachusetts |
| 17 | Helen Dowkanczuk | 18 | Daughter | Laboratory Asst | Massachusetts |
| 18 | James Fitzgerald | 24 | Head | Chauffeur | Massachusetts |
| 19 | Gertrude Fitzgerald | 21 | Wife | — | Massachusetts |
| 20 | Jean M. Fitzgerald | 9 | Daughter | — | Massachusetts |
| 21 | Josephine Fitzgerald | 2 | Daughter | — | Massachusetts |
| 22 | Lyna Downey | 58 | Mother in law | — | Massachusetts |
| 23 | Leonard Hanson | 36 | Head | — | Massachusetts |
| 24 | Evelyn Hanson | 33 | Wife | — | Massachusetts |
| 25 | Leonard Hanson | 7 | Son | — | Massachusetts |
| 26 | Dorothy Hanson | 4 | Daughter | — | Massachusetts |
| 27 | Veronica Hanson | 1 | Daughter | — | Massachusetts |
| 28 | Clara Crotty | 44 | Head | — | Massachusetts |
| 29 | Marilyn Crotty | 20 | Son | New Worker | Massachusetts |
| 30 | George Beal | 27 | Head | Baker | Massachusetts |
| 31 | Anna Beal | 28 | Wife | — | Massachusetts |
| 32 | George Beal | 1 | Son | — | Massachusetts |
| 33 | Ellen Mccarthy | 59 | Head | — | Massachusetts |
| 34 | Catherine Mccarthy | 28 | Daughter | Clerk | Massachusetts |
| 35 | William Mccarthy | 32 | Son | Freight Handler | Massachusetts |
| 36 | Mary Mccarthy | 29 | Daughter | — | Massachusetts |
| 37 | William Mccarthy | 0 | Son | — | Massachusetts |
| 38 | Justin Mullins | 44 | Head | Police Officer | Texas |
| 39 | Sarah Mullins | 48 | Wife | — | Massachusetts |
| 40 | Eleanor Mullins | 19 | Daughter | Livergirl | 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)