JM
James Murray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Murray across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Murray |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Plumber |
| Industry | Plumbing Shop |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 945 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Plumber |
| Township / Ward | Newton |
| Est. Birth Year | ~1900 |
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 |
|---|---|---|---|---|
| Mary Murray | Daughter | — | 48 | ~1892 |
| John Murray | Head | — | 78 | ~1862 |
| James Murray | Son | — | 40 | ~1900 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 19
Middlesex, Massachusetts · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murray |
| Given Name | James J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Plumber |
| Industry | Own Shop |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 29
Middlesex, Massachusetts · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murray |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Plumber |
| Industry | Plumbing & Heating |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 40
Middlesex-County, Massachusetts · implied b. ~1900 — 3 household members
| Surname | Murray |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Occupation | Plumber |
| Industry | Plumbing Shop |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 945 |
| Highest Grade | Hs 1 |
| 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 James Murray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Murray (~0.92 confidence) and father John Murray (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murray
b. ~1862
Source father
● Household
· direct · ~0.92
Father
John Murray
b. ~1864
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Murray
Son · 1940 · age 40 · b. ~1900 · Massachusetts
★ You are viewing this record
Sibling
Mary Murray
Sibling · 1940 · age 48
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
39 people indexed on this census page (nara:1940:m-t0627-01614-00345)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Italo Leone | 27 | Head | Clerk | Massachusetts |
| 42 | Donata Leone | 26 | Wife | — | Massachusetts |
| 43 | Colletta Orazio | 45 | Head | Chauffeur | Italy |
| 44 | Irene Orazio | 45 | Wife | — | Italy |
| 45 | Lena Orazio | 21 | Daughter | Stenographer | Massachusetts |
| 46 | Patsy Orazio | 19 | Son | New Worker | Massachusetts |
| 47 | Juda Orazio | 16 | Daughter | New Worker | Massachusetts |
| 49 | Elizabeth Reilly | 64 | Head | — | Massachusetts |
| 50 | Julia Reilly | 65 | Sister | — | Massachusetts |
| 51 | John Murray | 78 | Head | — | Massachusetts |
| 52 | Mary Murray | 48 | Daughter | — | Massachusetts |
| 53 | James J. Murray THIS PERSON | 40 | Son | Plumber | Massachusetts |
| 54 | James J. Murphy | 53 | Head | Tractor Operator | Massachusetts |
| 55 | Anna C. Murphy | 50 | Wife | — | Massachusetts |
| 56 | Thomas Murphy | 21 | Son | New Worker | Massachusetts |
| 57 | John W. Murphy | 19 | Son | New Worker | Massachusetts |
| 58 | Gerard Murphy | 17 | Son | — | Massachusetts |
| 59 | Anne T. Murphy | 14 | Daughter | — | Massachusetts |
| 60 | Anne Quinn | 72 | Head | — | Massachusetts |
| 61 | Edward Quinn | 37 | Son | Street Car Conductor | Massachusetts |
| 62 | Edward Arnold | 50 | Head | Laborer | Massachusetts |
| 63 | Sarah Arnold | 56 | Wife | — | Massachusetts |
| 64 | Louis Russo | 32 | Head | Laborer | Massachusetts |
| 65 | Laura Russo | 22 | Wife | — | Massachusetts |
| 66 | Rose Ann Russo | 5 | Daughter | — | Massachusetts |
| 67 | Barbara Russo | 4 | Daughter | — | Massachusetts |
| 68 | Charles Lottanzio | 29 | Head | Laborer | Massachusetts |
| 69 | Margaret Lottanzio | 21 | Wife | — | Massachusetts |
| 70 | Carmela Lottanzio | 4 | Daughter | — | Massachusetts |
| 71 | Accunta Lottanzio | 3 | Daughter | — | Massachusetts |
| 72 | Daniel Gatti | 33 | Head | Laborer | Massachusetts |
| 73 | Theresa Gatti | 26 | Wife | — | Massachusetts |
| 74 | Joseph Gatti | 6 | Son | — | Massachusetts |
| 75 | Daniel Jr. Gatti | 4 | Son | — | Massachusetts |
| 76 | Donata Gatti | 3 | Daughter | — | Massachusetts |
| 77 | Louis Gatti | 2 | Son | — | Massachusetts |
| 78 | Nicolas Tosti | 45 | Head | — | Italy |
| 79 | Josephine Tosti | 35 | Wife | — | Italy |
| 80 | Paul N. Tosti | 9 | Son | — | Massachusetts |
Pedigree Summary
James + 1 sibling
Gen 1 · 2 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)