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Mary Byrne — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Berkshire-County, Massachusetts
Our Model Tree links this Mary Byrne across the 1930 and 1940 US Censuses in Berkshire-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Berkshire-County, Massachusetts |
| Surname | Byrne |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Pittsfield |
| 1935 Residence (County) | Berkshire |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Pittsfield |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Elizabeth Byrne | Daughter | — | 17 | ~1923 |
| Mary Byrne | Daughter | — | 16 | ~1924 |
| Rita Byrne | Daughter | — | 10 | ~1930 |
| Katherine Byrne | Daughter | — | 11 | ~1929 |
| John Byrne | Daughter | — | 13 | ~1927 |
| John Byrne | Head | — | 48 | ~1892 |
| John Byrne | Son | — | 8 | ~1932 |
| Mary Byrne | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Berkshire, Massachusetts
Daughter, age 6
Berkshire, Massachusetts · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Kentucky |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Berkshire-County, Massachusetts
Daughter, age 16
Berkshire-County, Massachusetts · implied b. ~1924 — 8 household members
| Surname | Byrne |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Pittsfield |
| 1935 Residence (County) | Berkshire |
| 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 Byrne across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Byrne
Daughter · 1940 · age 16 · b. ~1924 · Massachusetts
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Sibling
John Byrne
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Byrne
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Byrne
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Byrne
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Byrne
Sibling · 1940 · age 13
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 — Berkshire-County, Massachusetts
Open full size
1940 US Federal Census — Berkshire-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01569-00217)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Belisle | 12 | Grandson | — | Massachusetts |
| 42 | Alexander Belisle | 51 | Head | Clerk | Massachusetts |
| 43 | Cecelia Belisle | 51 | Wife | — | Connecticut |
| 44 | Charlotte Belisle | 22 | Daughter | Sorter | Washington D.C. |
| 45 | Alexander Jr. Belisle | 17 | Son | — | Massachusetts |
| 46 | John Byrne | 48 | Head | Press Man | New York |
| 47 | Mary Byrne | 48 | Wife | — | Kentucky |
| 48 | Elizabeth Byrne | 17 | Daughter | — | Massachusetts |
| 49 | Mary Byrne THIS PERSON | 16 | Daughter | — | Massachusetts |
| 50 | John Byrne | 13 | Daughter | — | Massachusetts |
| 51 | Katherine Byrne | 11 | Daughter | — | Massachusetts |
| 52 | Rita Byrne | 10 | Daughter | — | Massachusetts |
| 53 | John Byrne | 8 | Son | — | Massachusetts |
| 54 | Ovela Arsenault | 37 | Head | Electric Engineer | Massachusetts |
| 55 | Evelyn Arsenault | 38 | Wife | Clerk | New York |
| 56 | Richard Arsenault | 7 | Son | — | Massachusetts |
| 57 | Arthur Menard | 41 | Head | Electric Engineer | Massachusetts |
| 58 | Ernestine Menard | 33 | Wife | — | Massachusetts |
| 59 | C. Richard Menard | 11 | Son | — | Massachusetts |
| 60 | Jeanne Menard | 10 | Daughter | — | Massachusetts |
| 61 | Robert A. Menard | 6 | Son | — | Massachusetts |
| 62 | Phyllis Menard | 0 | Daughter | — | Massachusetts |
| 63 | Everett Dakin | 44 | Head | Welder | New York |
| 64 | Kathryn Dakin | 41 | Wife | — | New York |
| 65 | Loraine Dakin | 18 | Daughter | — | Massachusetts |
| 66 | Jeffrey Overton | 22 | Lodger | Apprentice | England |
| 67 | Roy Holmes | 47 | Head | Stationary Engineer | Rhode Island |
| 68 | Emma Holmes | 43 | Wife | — | Rhode Island |
| 69 | Avery Holmes | 21 | Daughter | Office | Rhode Island |
| 70 | John B. Cook | 32 | Head | Punch Press | Massachusetts |
| 71 | Elsa S. Cook | 32 | Wife | — | Sweden |
| 72 | Sonya Cook | 5 | Daughter | — | Vermont |
| 73 | Violette Walker | 48 | Head | — | New York |
| 74 | Dorothea Walker | 15 | Daughter | — | Michigan |
| 75 | Helen Walker | 12 | Daughter | — | Michigan |
| 76 | Henry Lussier | 62 | Head | Painter | Canada-French |
| 77 | Anna Lussier | 60 | Wife | — | Canada-French |
| 78 | Rene Lussier | 31 | Son | Housework | Massachusetts |
| 79 | Lillian Lussier | 35 | Daughter | Stenographer | New York |
| 80 | Ida Lussier | 33 | Daughter | — | New York |
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)