MF
Mary Fitzpatrick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Fitzpatrick across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 5-person household.
Age 63
b. ~1877
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Fitzpatrick |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston, city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Hours Worked | 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 | ~1877 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edna Howard | Daughter | — | 22 | ~1918 |
| Rita Howard | Daughter | — | 25 | ~1915 |
| John Fitzpatrick | Head | — | 65 | ~1875 |
| W Howard | Son | — | 36 | ~1904 |
| Mary Fitzpatrick | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 43
Suffolk, Massachusetts · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary J |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Spouse, age 53
Suffolk, Massachusetts · implied b. ~1877 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 26 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 63
Suffolk-County, Massachusetts · implied b. ~1877 — 5 household members
| Surname | Fitzpatrick |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston, city |
| 1935 Residence (County) | Suffolk |
| Hours Worked | 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 Fitzpatrick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Fitzpatrick
Spouse · 1940 · age 63 · b. ~1877 · Massachusetts
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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
39 people indexed on this census page (nara:1940:m-t0627-01679-00735)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis T. Finn | 11 | son | — | Massachusetts |
| 42 | Paul R. Finn | 8 | son | — | Massachusetts |
| 43 | John W. Finn | 5 | son | — | Massachusetts |
| 44 | Robert J. Finn | 1 | son | — | Massachusetts |
| 45 | Thomas J. Delaney | 61 | Head | Watchman | Irish Free State |
| 46 | Margaret A. Delaney | 60 | Wife | — | Irish Free State |
| 47 | Gertrude Delaney | 35 | daughter | Typist | Massachusetts |
| 48 | John J. Rev. Mc Garry | 61 | cleric | Pastor | Massachusetts |
| 49 | Joseph L. Rev. Burke | 38 | cleric | Parish Priest | Massachusetts |
| 50 | George F. Rev. Carrozza | 26 | cleric | Pastor | Massachusetts |
| 51 | John J. Jr. Rev. Hart | 36 | cleric | Parish Priest | Massachusetts |
| 52 | Robert L. Rev. Hinchliffe | 48 | cleric | Parish Priest | Massachusetts |
| 53 | Mary O'Connor | 46 | maid | Maid | Irish Free State |
| 54 | Minnie Richard | 39 | maid | Maid | Massachusetts |
| 55 | Margaret Sullivan | 55 | maid | Maid | Massachusetts |
| 56 | Miss Mary D. Bradley | 45 | Head | Teacher | Massachusetts |
| 57 | Hannah F. Bradley | 72 | aunt | — | Massachusetts |
| 58 | John J. Halley | 44 | Head | Draftsman | Massachusetts |
| 59 | Mabel A. Halley | 45 | Wife | — | Massachusetts |
| 60 | James J. O'Connor | 51 | Head | Janitor | Irish Free State |
| 61 | Anna M. O'Connor | 50 | Wife | — | Irish Free State |
| 62 | Eileen M. O'Connor | 20 | daughter | — | Massachusetts |
| 63 | James J. Jr. O'Connor | 15 | son | — | Massachusetts |
| 64 | Kevin O'Connor | 14 | son | — | Massachusetts |
| 66 | John F. O. Fitzpatrick | 65 | Head | Police Captain | New York |
| 67 | Mary E. Fitzpatrick THIS PERSON | 63 | Wife | — | Massachusetts |
| 68 | W. H. Howard | 36 | son | Radios Editor | Massachusetts |
| 69 | Edna Howard | 22 | daughter | Clerk-File | Massachusetts |
| 70 | Rita Howard | 25 | daughter | Teacher | Massachusetts |
| 71 | Louis J. May | 45 | Head | Bank-Clerk | Massachusetts |
| 72 | Marie E. May | 34 | Wife | — | Massachusetts |
| 73 | John J. May | 12 | son | — | Massachusetts |
| 74 | Marily C. May | 9 | daughter | — | Massachusetts |
| 75 | Louisa E. May | 6 | daughter | — | Massachusetts |
| 76 | Dorothy E. May | 4 | daughter | — | Massachusetts |
| 77 | John J. O'Brien | 43 | Head | Telephone Repairman | Massachusetts |
| 78 | Margaret D. O'Brien | 42 | Wife | — | Massachusetts |
| 79 | Margaret E. O'Brien | 11 | daughter | — | Massachusetts |
| 80 | Elizabeth A. O'Brien | 9 | daughter | — | 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)