JF
John Fitzpatrick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Fitzpatrick across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1908), then head of a 11-person household.
Age 32
b. ~1908
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Fitzpatrick |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Dist. Water Maker |
| Industry | Steam Railway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Dist. Water Maker |
| Township / Ward | Boston City |
| Est. Birth Year | ~1908 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Fitzpatrick | Daughter | — | 16 | ~1924 |
| Jean Fitzpatrick | Daughter | — | 4 | ~1936 |
| Joan Fitzpatrick | Daughter | — | 4 | ~1936 |
| Mary Fitzpatrick | Daughter | — | 13 | ~1927 |
| Florence Fitzpatrick | Daughter | — | 11 | ~1929 |
| Lillian Fitzpatrick | Daughter | — | 8 | ~1932 |
| John Fitzpatrick | Head | — | 32 | ~1908 |
| Joseph Fitzpatrick | Son | — | 2 | ~1938 |
| John Fitzpatrick | Son | — | 6 | ~1934 |
| Joseph Fitzpatrick | Son | — | 14 | ~1926 |
| Margaret Fitzpatrick | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 22
Suffolk, Massachusetts · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | John |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Foreman |
| Industry | Can factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 32
Suffolk-County, Massachusetts · implied b. ~1908 — 11 household members
| Surname | Fitzpatrick |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Dist. Water Maker |
| Industry | Steam Railway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| 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 John Fitzpatrick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Fitzpatrick
Head · 1940 · age 32 · b. ~1908 · 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
40 people indexed on this census page (nara:1940:m-t0627-01661-00328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Belinski | 26 | Head | Blacksmith | Massachusetts |
| 2 | Ann Belinski | 25 | Wife | — | Massachusetts |
| 3 | Jean Belinski | 1 | Daughter | — | Massachusetts |
| 4 | Janet Olson | 33 | Head | — | Massachusetts |
| 5 | Angeline Olson | 13 | Daughter | — | Massachusetts |
| 6 | Joseph Olson | 10 | Son | — | Massachusetts |
| 7 | Ralph Olson | 9 | Son | — | Massachusetts |
| 8 | Betty Olson | 6 | Daughter | — | Massachusetts |
| 9 | Martin Olson | 5 | Son | — | Massachusetts |
| 10 | Shirley Olson | 3 | Daughter | — | Massachusetts |
| 11 | John Fitzpatrick THIS PERSON | 32 | Head | Dist. Water Maker | Massachusetts |
| 12 | Margaret Fitzpatrick | 35 | Wife | — | Massachusetts |
| 13 | Mildred Fitzpatrick | 16 | Daughter | Mess Marker | Massachusetts |
| 14 | Joseph Fitzpatrick | 14 | Son | — | Massachusetts |
| 15 | Mary Fitzpatrick | 13 | Daughter | — | Massachusetts |
| 16 | Florence Fitzpatrick | 11 | Daughter | — | Massachusetts |
| 17 | Lillian Fitzpatrick | 8 | Daughter | — | Massachusetts |
| 18 | John Jr. Fitzpatrick | 6 | Son | — | Massachusetts |
| 19 | Joan Fitzpatrick | 4 | Daughter | — | Massachusetts |
| 20 | Jean Fitzpatrick | 4 | Daughter | — | Massachusetts |
| 21 | Joseph Fitzpatrick | 2 | Son | — | Massachusetts |
| 22 | Stephen Guymontana | 43 | Head | Laborer | Italy |
| 23 | Rose Guymontana | 34 | Wife | — | New York |
| 24 | James Guymontana | 15 | Son | — | Massachusetts |
| 25 | Josephine Guymontana | 14 | Daughter | — | Massachusetts |
| 26 | Joseph Guymontana | 10 | Son | — | Massachusetts |
| 27 | Richard Guymontana | 6 | Son | — | Massachusetts |
| 28 | Rosemary Guymontana | 4 | Daughter | — | Massachusetts |
| 29 | Dominic Sciaraffa | 40 | Head | Shoe Worker | Italy |
| 30 | Teresa Sciaraffa | 32 | Wife | — | Massachusetts |
| 31 | Christine Sciaraffa | 3 | Daughter | — | Massachusetts |
| 32 | Nancy Sciaraffa | 1 | Daughter | — | Massachusetts |
| 33 | Vincent Sciaraffa | 45 | Head | Shoe Worker | Italy |
| 34 | Pasquale Sciaraffa | 23 | Son | Shoe Worker | Massachusetts |
| 35 | Vito Sciaraffa | 22 | Son | Laborer | Massachusetts |
| 36 | Michael Sciaraffa | 17 | Son | Shoe Worker | Massachusetts |
| 37 | Marie Sciaraffa | 78 | Mother | — | Italy |
| 38 | Lawrence Lannini | 21 | Head | Truck Driver | Massachusetts |
| 39 | Angy Lannini | 18 | Wife | — | Massachusetts |
| 40 | Annette Lannini | 0 | 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)