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Mary Madden — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this Mary Madden across the 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Madden |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brookline |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Brookline |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Madden | Son | — | 10 | ~1930 |
| Anastasia Madden | Spouse | — | 41 | ~1899 |
| Patricia Madden | Daughter | — | 2 | ~1938 |
| Patrick Madden | Son | — | 14 | ~1926 |
| Steven Madden | Son | — | 6 | ~1934 |
| Mary Madden | Daughter | — | 11 | ~1929 |
| Barbara Madden | Daughter | — | 4 | ~1936 |
| Patrick Madden | Head | — | 41 | ~1899 |
| Anna Madden | Daughter | — | 15 | ~1925 |
| Thomas Madden | Son | — | 9 | ~1931 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 1
Suffolk, Massachusetts · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Madden |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Daughter, age 11
Norfolk-County, Massachusetts · implied b. ~1929 — 10 household members
| Surname | Madden |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brookline |
| 1935 Residence (County) | Norfolk |
| Highest Grade | 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 Madden across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Madden
Daughter · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
Patrick Madden
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Madden
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Madden
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Madden
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Madden
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Madden
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Steven Madden
Sibling · 1940 · age 6
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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01626-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Barbara E. Wright | 19 | Daughter | — | Massachusetts |
| 42 | Doris M. Wright | 15 | Daughter | — | Massachusetts |
| 43 | Thomas J. Wright | 3 | Son | — | Massachusetts |
| 44 | Michael J. Moriarty | 41 | Head | Laborer | Eire |
| 45 | Margaret W. Moriarty | 45 | Wife | — | Eire |
| 46 | John J. Moriarty | 15 | Son | — | Massachusetts |
| 47 | James J. Moriarty | 11 | Son | — | Massachusetts |
| 48 | Mary Moriarty | 8 | Daughter | — | Massachusetts |
| 49 | Anna Moriarty | 8 | Daughter | — | Massachusetts |
| 50 | Margaret D. Ranaghan | 64 | Head | — | Eire |
| 51 | Patrick J. Madden | 41 | Head | Supervisor | Massachusetts |
| 52 | Anastasia Madden | 41 | Wife | — | Eire |
| 53 | Anna Madden | 15 | Daughter | — | Massachusetts |
| 54 | Patrick J. Jr. Madden | 14 | Son | — | Massachusetts |
| 55 | Mary F. Madden THIS PERSON | 11 | Daughter | — | Massachusetts |
| 56 | John Madden | 10 | Son | — | Massachusetts |
| 57 | Thomas J. Madden | 9 | Son | — | Massachusetts |
| 58 | Steven Madden | 6 | Son | — | Massachusetts |
| 59 | Barbara J. Madden | 4 | Daughter | — | Massachusetts |
| 60 | Patricia Madden | 2 | Daughter | — | Massachusetts |
| 61 | Elizabeth Deren | 54 | Head | — | Eire |
| 62 | James P. Deren | 32 | Son | — | Massachusetts |
| 63 | John F. Deren | 31 | Son | Laborer | Massachusetts |
| 64 | Anna Deren | 28 | Daughter | — | Massachusetts |
| 65 | Norah A. Brien | 45 | Head | — | Eire |
| 66 | William J. Brien | 12 | Son | — | Massachusetts |
| 67 | Margaret M. Brien | 10 | Daughter | — | Massachusetts |
| 68 | Ruth A. Brien | 9 | Daughter | — | Massachusetts |
| 69 | Lawrence F. Kirley | 43 | Head | Chauffeur | Massachusetts |
| 70 | Sarah Kirley | 46 | Wife | — | Eire |
| 71 | Mary M. A. Kirley | 15 | Daughter | — | Massachusetts |
| 72 | Lawrence F. Jr. Kirley | 15 | Son | — | Massachusetts |
| 73 | Alice M. Kirley | 13 | Daughter | — | Massachusetts |
| 74 | Edward J. Kirley | 11 | Son | — | Massachusetts |
| 75 | Joan M. Kirley | 9 | Daughter | — | Massachusetts |
| 76 | Thomas Farrell | 80 | Uncle | — | Eire |
| 77 | Theodore Laughlin | 49 | Head | Laborer | Eire |
| 78 | Mary Laughlin | 46 | Wife | — | Eire |
| 79 | Thomas P. Laughlin | 12 | Son | — | Massachusetts |
| 80 | Theodore J. Laughlin | 10 | 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)