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Mary Madden — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Madden across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1904), then head of a 9-person household.
Age 36
b. ~1904
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Madden |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Cashier |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 842 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Cashier |
| Township / Ward | Malden City |
| Est. Birth Year | ~1904 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Madden | Son | — | 21 | ~1919 |
| Loretta Madden | Spouse | — | 61 | ~1879 |
| Leo Madden | Son | — | 20 | ~1920 |
| Thomas Madden | Head | — | 65 | ~1875 |
| Loretta Madden | Daughter | — | 22 | ~1918 |
| David Madden | Son | — | 18 | ~1922 |
| Thomas Madden | Son | — | 30 | ~1910 |
| Bernard Madden | Son | — | 23 | ~1917 |
| Mary Madden | Daughter | — | 36 | ~1904 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 25
Middlesex, Massachusetts · implied b. ~1905 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Madden |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Massachusetts |
| Occupation | Cashier |
| Industry | Restaurant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 36
Middlesex-County, Massachusetts · implied b. ~1904 — 9 household members
| Surname | Madden |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Cashier |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 842 |
| Highest Grade | H-4 |
| 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 36 · b. ~1904 · Massachusetts
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Sibling
Leo Madden
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Madden
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Madden
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Madden
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Madden
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Madden
Sibling · 1940 · age 22
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01609-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Beatrice Codd | 36 | Wife | — | England |
| 42 | Beatrice Codd | 5 | Daughter | — | Massachusetts |
| 43 | George C. Codd | 5 | Son | — | Massachusetts |
| 44 | William H. Stemmler | 49 | Head | Engineer | Pennsylvania |
| 45 | Marion Stemmler | 46 | Wife | — | Massachusetts |
| 46 | Marion Stemmler | 16 | Daughter | — | Massachusetts |
| 47 | William Stemmler | 14 | Son | — | Massachusetts |
| 48 | Elizabeth Stemmler | 12 | Daughter | — | Massachusetts |
| 49 | Mary Stemmler | 6 | Daughter | — | Massachusetts |
| 50 | Anastacia Croston | 83 | Mother-in-law | — | Canada-French |
| 51 | Gustav O. Thuve | 54 | Head | House Painter | Belgium |
| 52 | Bertha Thuve | 49 | Wife | — | Belgium |
| 53 | Anthony Maccio | 30 | Head | Private Chauffeur | Rhode Island |
| 54 | Madie O. Maccio | 24 | Wife | — | Belgium |
| 55 | Joanne Maccio | 5 | Daughter | — | Massachusetts |
| 56 | Robert Maccio | 2 | Son | — | Massachusetts |
| 57 | Thomas F. Madden | 65 | Head | Custodian | Irish Free State |
| 58 | Loretta W. Madden | 61 | Wife | — | Massachusetts |
| 59 | Thomas F. Jr. Madden | 30 | Son | Floorman | Massachusetts |
| 60 | Mary C. Madden THIS PERSON | 36 | Daughter | Cashier | Massachusetts |
| 61 | Loretta W. Madden | 22 | Daughter | Hairdresser | Massachusetts |
| 62 | Bernard G. Madden | 23 | Son | Milkman | Massachusetts |
| 63 | Lawrence H. Madden | 21 | Son | Dr. Blueprint | Massachusetts |
| 64 | Leo C. Madden | 20 | Son | — | Massachusetts |
| 65 | David E. Madden | 18 | Son | Stock-Boy | Massachusetts |
| 66 | Annie J. Dorrance | 56 | Head | — | Irish Free State |
| 67 | Grace Dorrance | 26 | Daughter | Laborer | Massachusetts |
| 68 | Wilhelmina Dorrance | 25 | Daughter | — | Massachusetts |
| 69 | Kenneth G. Dorrance | 4 | Grandson | — | Massachusetts |
| 70 | John E. Christensen | 55 | Head | W.P.A. Mason | Denmark |
| 71 | Annie Christensen | 48 | Wife | — | Norway |
| 72 | Albert E. Christensen | 25 | Son | Body-Builder | Massachusetts |
| 73 | Walter Christensen | 20 | Son | Trucking Operator | Massachusetts |
| 74 | John F. Christensen | 26 | Son | Machine Operator | Massachusetts |
| 75 | Ruth Christensen | 24 | Daughter-in-law | — | Massachusetts |
| 76 | Ann Christensen | 3 | Granddaughter | — | Massachusetts |
| 77 | Wilbur H. Pierce | 47 | Head | Electrician | Massachusetts |
| 78 | Agnes V. Pierce | 46 | Wife | — | Canada-English |
| 79 | Barbara Pierce | 11 | Daughter | — | Massachusetts |
| 80 | Wilbur H. Jr. Pierce | 6 | 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)