MM
Mary Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Murphy across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Murphy |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Receptionist |
| Industry | Dist. Court |
| Class of Worker | GW |
| Hours Worked | 45 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Receptionist |
| Township / Ward | Boston |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Mary Murphy | Daughter | — | 37 | ~1903 |
| Helen Murphy | Daughter | — | 4 | ~1936 |
| Helen Murphy | Daughter | — | 32 | ~1908 |
| John Murphy | Head | — | 69 | ~1871 |
| Mary Murphy | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 16
Suffolk, Massachusetts · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Filing Clerk |
| Industry | Wholesale Drugs |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 27
Suffolk, Massachusetts · implied b. ~1903 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Saleswoman |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 37
Suffolk-County, Massachusetts · implied b. ~1903 — 5 household members
| Surname | Murphy |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Receptionist |
| Industry | Dist. Court |
| Class of Worker | GW |
| Hours Worked | 45 |
| Income (1939) | 1800 |
| 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 Mary Murphy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Murphy (~0.92 confidence) and father John Murphy (~0.92 confidence) and mother Mary Murphy (~0.92 confidence) and mother Mary Murphy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murphy
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Murphy
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Murphy
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Mary Murphy
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Murphy
Daughter · 1940 · age 37 · b. ~1903 · Massachusetts
★ You are viewing this record
Sibling
Helen Murphy
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Murphy
Sibling · 1940 · age 4
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 — 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-t0627-01666-00404)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida Wallace | 56 | Mother | — | Massachusetts |
| 2 | Adeline C. Gueder | 24 | Daughter-in-law | — | Virginia |
| 3 | William Manning | 59 | Lodger | Produce Salesman | Massachusetts |
| 4 | Agnes T. Logue | 63 | Head | — | Rhode Island |
| 5 | Elmer J. Casey | 44 | Son | Police Officer | Massachusetts |
| 6 | Marcella R. Nelson | 71 | Head | — | Massachusetts |
| 7 | Frances H. Myers | 61 | Lodger | Secretary | Massachusetts |
| 8 | Patrick Clarity | 31 | Lodger | Janitor | Eire |
| 9 | Martin J. Allston | 35 | Lodger | Social Worker | Massachusetts |
| 10 | Harry F. Maske | 30 | Lodger | Elevator Operator | Massachusetts |
| 11 | William H. Murphy | 73 | Head | — | Massachusetts |
| 12 | Mary J. Murphy | 74 | Sister | — | Massachusetts |
| 13 | John C. Murphy | 69 | Head | — | Massachusetts |
| 14 | Mary G. Murphy | 62 | Wife | — | Massachusetts |
| 15 | Mary G. Murphy THIS PERSON | 37 | Daughter | Receptionist | Massachusetts |
| 16 | Helen M. Murphy | 32 | Daughter | Dictaphone Operator | Massachusetts |
| 17 | Helen P. Murphy | 4 | Daughter | — | Massachusetts |
| 18 | Patrick J. Sullivan | 52 | Head | Commissioner | Massachusetts |
| 19 | Daniel Sullivan | 50 | Brother | Linotype Operator | Massachusetts |
| 20 | Marie C. Sullivan | 23 | Niece | — | Massachusetts |
| 21 | Jeanne L. Sullivan | 17 | Niece | — | Massachusetts |
| 22 | Paul Sullivan | 15 | Nephew | — | Massachusetts |
| 23 | Vincent Sullivan | 13 | Nephew | — | Massachusetts |
| 24 | Thomas Sullivan | 11 | Nephew | — | Massachusetts |
| 25 | Philip L. Mcmahon | 60 | Head | Lawyer | Massachusetts |
| 26 | Elizabeth J. Mcmahon | 61 | Wife | — | New Hampshire |
| 27 | William J. Heeley | 44 | Head | Manager | Massachusetts |
| 28 | Alice C. Heeley | 43 | Wife | — | Massachusetts |
| 29 | Mary R. Heeley | 20 | Daughter | — | Massachusetts |
| 30 | Carol A. Heeley | 2 | Daughter | — | Massachusetts |
| 31 | Emma S. Doddridge | 42 | Head | Clerk | Massachusetts |
| 32 | Grace A. Doddridge | 39 | Sister | Shorthand Reporter | Massachusetts |
| 33 | Henry A. Doddridge | 55 | Brother | Motorman | Massachusetts |
| 34 | William A. Doddridge | 52 | Brother | — | Massachusetts |
| 35 | Mary C. Doddridge | 50 | Sister | — | Massachusetts |
| 36 | Mary R. Mcgaffigan | 76 | Head | — | Massachusetts |
| 37 | Robert L. Reese | 31 | Lodger | Counter Man | Massachusetts |
| 38 | Laura N. Reese | 29 | Lodger | — | Massachusetts |
| 39 | Rosemary Reese | 3 | Lodger | — | Massachusetts |
| 40 | Philip J. Nader | 28 | Head | Writer-Machinist | Massachusetts |
Pedigree Summary
Mary + 2 siblings
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)