MM
Mary Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Murphy across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Murphy | Daughter | — | 23 | ~1917 |
| John Murphy | Head | — | 55 | ~1885 |
| Richard Murphy | Son | — | 24 | ~1916 |
| Robert Murphy | Son | — | 22 | ~1918 |
| Francis Murphy | Son | — | 26 | ~1914 |
| Joseph Murphy | Son | — | 22 | ~1918 |
| Agnes Murphy | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Wayne, Michigan
Daughter, age 2
Wayne, Michigan · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Daughter, age 13
Wayne, Michigan · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 23
Wayne-County, Michigan · implied b. ~1917 — 7 household members
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 father C Murphy (~0.92 confidence) and mother Rebecca Murphy (~0.92 confidence) and mother Agnes Murphy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murphy
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Murphy
b. ~1885
Source father
● Household
· direct · ~0.92
Father
C Murphy
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Rebecca Murphy
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Agnes Murphy
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Murphy
Daughter · 1940 · age 23 · b. ~1917 · Michigan
★ You are viewing this record
Sibling
Richard Murphy
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Murphy
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Murphy
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Murphy
Sibling · 1940 · age 26
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01870-00590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bernard Welten | 32 | Head | Baker | Iowa |
| 2 | Judith Welten | 28 | Wife | — | Illinois |
| 3 | Marie Welten | 35 | Sister | Saleslady | Iowa |
| 4 | Archie Macphee | 23 | Head | Mixer | Michigan |
| 5 | Vera Macphee | 24 | Wife | — | Michigan |
| 6 | Harold Macphee | 2 | Son | — | Michigan |
| 7 | David Rollos | 42 | Head | Tool Maker | Scotland |
| 8 | Nellie Rollos | 41 | Wife | — | Scotland |
| 9 | Christina Rollos | 12 | Daughter | — | Michigan |
| 10 | Clarence Crandall | 45 | Head | Electrician | Canada |
| 11 | Cora Crandall | 45 | Wife | — | Canada |
| 12 | Audrey Crandall | 22 | Daughter | — | Canada |
| 13 | Lauren Hart | 51 | Head | Solderer | New York |
| 14 | Florence Hart | 52 | Wife | — | New York |
| 15 | Robert Hart | 19 | Son | New Worker | Michigan |
| 16 | Emma Langlois | 48 | Head | — | Canada |
| 17 | Frank Langlois | 26 | Son | Production Worker | Michigan |
| 18 | Laura Langlois | 21 | Daughter | New Worker | Michigan |
| 19 | Robert Langlois | 20 | Son | Production Worker | Michigan |
| 20 | Irene Langlois | 17 | Daughter | — | Michigan |
| 21 | Arthur Langlois | 14 | Son | — | Michigan |
| 22 | Bernard Carbary | 45 | Head | Mechanic | Michigan |
| 23 | Emma Carbary | 42 | Wife | — | Michigan |
| 24 | Donald Carbary | 21 | Son | Iron Worker | Michigan |
| 25 | Mildred Carbary | 19 | Daughter | — | Michigan |
| 26 | Barbara Carbary | 17 | Daughter | — | Michigan |
| 27 | David Evers | 44 | Head | Plasterer | Michigan |
| 28 | Eda Evers | 43 | Wife | — | New York |
| 29 | Leo Yack | 44 | Brother-in-law | Electrician | Michigan |
| 30 | Eva Yack | 43 | Sister | — | New York |
| 31 | Doris Yack | 16 | Neice | — | Michigan |
| 32 | John E. Murphy | 55 | Head | Production Worker | Michigan |
| 33 | Agnes Murphy | 54 | Wife | — | Michigan |
| 34 | Francis Murphy | 26 | Son | Stock Man | Michigan |
| 35 | Richard Murphy | 24 | Son | Shipping Clerk | Michigan |
| 36 | Robert Murphy | 22 | Son | — | Michigan |
| 37 | Joseph Murphy | 22 | Son | Stenographer | Michigan |
| 38 | Mary Murphy THIS PERSON | 23 | Daughter | — | Michigan |
| 39 | George Mcfarlane | 74 | Head | Decorator | Scotland |
| 40 | George Mcfarlane | 5 | Son | — | Canada |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 5 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)