MD
Mary Delaney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Delaney across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 7-person household.
Age 49
b. ~1891
Female
Spouse
Born: Newfoundland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | 0 |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
| Occupation | 0 |
| Township / Ward | Boston |
| Est. Birth Year | ~1891 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Francis Delaney | Son | — | 19 | ~1921 |
| Dorothea Delaney | Daughter | — | 16 | ~1924 |
| Bernadine Delaney | Daughter | — | 20 | ~1920 |
| Patricia Delaney | Daughter | — | 5 | ~1935 |
| Mary Delaney | Spouse | — | 49 | ~1891 |
| Marie Delaney | Daughter | — | 10 | ~1930 |
| Sylvester Delaney | Head | — | 50 | ~1890 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 36
Suffolk, Massachusetts · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Delaney |
| Given Name | Mary E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | Newfoundland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1940
Suffolk-County, Massachusetts
Spouse, age 49
Suffolk-County, Massachusetts · implied b. ~1891 — 7 household members
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | First papers filed |
| Occupation | 0 |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
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 Delaney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Delaney
Spouse · 1940 · age 49 · b. ~1891 · Massachusetts
★ You are viewing this record
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-t0627-01676-00225)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louise M. Reardon | 35 | Daughter | Cashier | Massachusetts |
| 42 | Margaret C. Reardon | 33 | Daughter | Stenographer | Massachusetts |
| 43 | Patricia Turley | 7 | Granddaughter | — | Massachusetts |
| 44 | Hugh John Turley | 4 | Grandson | — | Massachusetts |
| 45 | Sylvester Delaney | 50 | Head | Machinist | Newfoundland |
| 46 | Mary Delaney THIS PERSON | 49 | Wife | 0 | Newfoundland |
| 47 | Bernadine Delaney | 20 | Daughter | Typist | Massachusetts |
| 48 | Francis Delaney | 19 | Son | Floor Boy | Massachusetts |
| 49 | Dorothea Delaney | 16 | Daughter | — | Massachusetts |
| 50 | Marie Delaney | 10 | Daughter | — | Massachusetts |
| 51 | Patricia Delaney | 5 | Daughter | — | Massachusetts |
| 52 | Laurence Bean | 28 | Head | Secretary | Massachusetts |
| 53 | Jeannette Bean | 28 | Wife | 0 | Massachusetts |
| 54 | Laurence Jr. Bean | 2 | Son | — | Massachusetts |
| 55 | David Bean | 1 | Son | — | Massachusetts |
| 56 | James Dempsey | 79 | Father-in-law | 0 | Newfoundland |
| 57 | Anna Dempsey | 41 | Sister-in-law | Secretary | Massachusetts |
| 58 | James J. Mccarthy | 59 | Head | Truck Driver | Massachusetts |
| 59 | Annie E. Mccarthy | 55 | Wife | 0 | Massachusetts |
| 60 | Anna R. Mccarthy | 29 | Daughter | Hostess | Massachusetts |
| 61 | Roberta A. Mccarthy | 18 | Daughter | New Worker | Canada-English |
| 62 | Leo J. Mccarthy | 14 | Son | — | Massachusetts |
| 63 | Robert R. Mccarthy | 12 | Son | — | Massachusetts |
| 64 | Nathaniel Lannon | 69 | Head | Bookkeeper | Massachusetts |
| 65 | Margaret Lannon | 67 | Wife | 0 | Eire |
| 66 | Margaret Lannon | 40 | Daughter | Stenographer | Massachusetts |
| 67 | Charles J. Bennett | 34 | Head | Clerk | Massachusetts |
| 68 | Ethel F. Bennett | 40 | Wife | 0 | Massachusetts |
| 69 | Arleen F. Bennett | 2 | Daughter | — | Massachusetts |
| 70 | Ann J. Bennett | 30 | Sister | Salesgirl | Massachusetts |
| 71 | William Guinan | 43 | Head | Patrolman | Massachusetts |
| 72 | Alice A. Guinan | 38 | Wife | 0 | Massachusetts |
| 73 | William Gilpatrick | 3 | Son | — | Massachusetts |
| 74 | Mary A. Gilpatrick | 11 | Step-Daughter | — | Massachusetts |
| 75 | Edward Gilpatrick | 9 | Step-Son | — | Massachusetts |
| 76 | Mary M. White | 65 | Mother-in-law | Seamstress | Newfoundland |
| 77 | Ronald Mcdonald | 33 | Head | Nightwatchman | Canada-English |
| 78 | Helen Mcdonald | 35 | Wife | 0 | Massachusetts |
| 79 | Ronald Mcdonald | 1 | Son | — | Massachusetts |
| 80 | Jennie Ogoska | 50 | Head | 0 | Poland |
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)