JF
James Fitzgerald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Plymouth-County, Massachusetts
Our Model Tree links this James Fitzgerald across the 1920, 1930 and 1940 US Censuses in Plymouth-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Martin & Martin — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Plymouth-County, Massachusetts |
| Surname | Fitzgerald |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Occupation | lawyer |
| Industry | law firm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Lawyer |
| Township / Ward | Brockton City |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Martin Fitzgerald | Head | — | 62 | ~1878 |
| James Fitzgerald | Son | — | 25 | ~1915 |
| Mary Fitzgerald | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Plymouth, Massachusetts
Son, age 5
Plymouth, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Son, age 15
Plymouth, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Son, age 25
Plymouth-County, Massachusetts · implied b. ~1915 — 3 household members
| Surname | Fitzgerald |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Occupation | lawyer |
| Industry | law firm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| 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 James Fitzgerald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Fitzgerald (~0.92 confidence) and father Martin Fitzgerald (~0.92 confidence) and mother Mary Fitzgerald (~0.92 confidence) and mother Mary Fitzgerald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Fitzgerald
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Martin Fitzgerald
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Mary Fitzgerald
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Fitzgerald
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Fitzgerald
Son · 1940 · age 25 · b. ~1915 · 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 — Plymouth-County, Massachusetts
Open full size
1940 US Federal Census — Plymouth-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01635-00580)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas Geraldine Thomas | 4 | daughter | — | Massachusetts |
| 42 | Janice Thomas | 12 | daughter | — | Massachusetts |
| 43 | John League | 47 | Head | Mechanic | Canada French |
| 44 | Myrtle League | 44 | wife | Clerk | Maine |
| 45 | Nettie League | 21 | daughter | Stenographer | Maine |
| 46 | Gertrude Tobin | 47 | head | Sorter | Massachusetts |
| 47 | Frederick Tobin | 22 | son | Truck Driver | Massachusetts |
| 48 | Meredith Tobin | 18 | daughter | — | Massachusetts |
| 49 | Clarence Bounds | 55 | Head | Truck Driver | Massachusetts |
| 50 | Jennie Bounds | 43 | wife | — | Massachusetts |
| 51 | Walter Bounds | 13 | son | — | Massachusetts |
| 52 | Helen A. Randall | 68 | head | — | Massachusetts |
| 53 | M. Elizabeth Randall | 36 | daughter | Teacher | Massachusetts |
| 54 | H. Beatrice Randall | 34 | daughter | Teacher | Massachusetts |
| 55 | Roger Randall | 24 | son | Jr. Engineer | Massachusetts |
| 56 | Daniel Danshew | 75 | head | — | Irish Free State |
| 57 | Margaret Danshew | 69 | wife | — | Irish Free State |
| 58 | Nellie Danshew | 45 | daughter | Bookkeeper | Massachusetts |
| 59 | Josephine Mcphelps | 47 | lodger | Teller | Massachusetts |
| 60 | Elizabeth Bryant | 63 | head | — | Massachusetts |
| 61 | Florence Bryant | 29 | daughter | Registered Nurse | Massachusetts |
| 62 | Arthur F. Wilton | 33 | head | Laborer | Massachusetts |
| 63 | Alice M. Wilton | 29 | wife | — | Massachusetts |
| 64 | Jean Wilton | 9 | daughter | — | Massachusetts |
| 65 | Barbara W. Wilton | 4 | daughter | — | Massachusetts |
| 66 | William F. Wilton | 1 | son | — | Massachusetts |
| 67 | Albert H. Clifford | 62 | head | Foreman | Massachusetts |
| 68 | Grace Clifford | 61 | wife | Clerk | Massachusetts |
| 69 | Martin Fitzgerald | 62 | head | Superintendent | Massachusetts |
| 70 | Mary E. Fitzgerald | 58 | wife | — | Massachusetts |
| 71 | James Fitzgerald THIS PERSON | 25 | son | Lawyer | Massachusetts |
| 72 | John Buckley | 48 | head | Fire Lieutenant | Massachusetts |
| 73 | Annie Buckley | 48 | wife | — | Massachusetts |
| 74 | Margaret Buckley | 24 | daughter | Teacher | Massachusetts |
| 75 | Edna Buckley | 21 | daughter | — | Massachusetts |
| 76 | William Buckley | 16 | son | — | Massachusetts |
| 77 | Joseph Mistretta | 52 | head | Laborer | Italy |
| 78 | Carmela Mistretta | 41 | wife | — | Italy |
| 79 | Leo Mistretta | 21 | son | Cutter | Massachusetts |
| 80 | Bess Mistretta | 20 | daughter | — | Massachusetts |
Pedigree Summary
James
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)