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Mary Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Plaquemines-County, Louisiana
Our Model Tree links this Mary Mullen across the 1930 and 1940 US Censuses in Plaquemines-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Plaquemines-County, Louisiana |
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Police Jury Ward 2 |
| 1935 Residence (County) | Plaquemines Parish |
| Additional Details | |
| Occupation | Farmer |
| Industry | Truck farm |
| Class of Worker | NP |
| Hours Worked | 44 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Farmer |
| Township / Ward | Police Jury Ward 2 |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Barbara Bringier | Daughter | — | 5 | ~1935 |
| Mary Mullen | Daughter | — | 22 | ~1918 |
| Julia Bringier | Daughter | — | 29 | ~1911 |
| Nathan Mullen | Head | — | 56 | ~1884 |
| Nathan Mullen | Son | — | 17 | ~1923 |
| Nehemiah Mullen | Son | — | 14 | ~1926 |
| Virginia Mullen | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Plaquemines, Louisiana
Daughter, age 10
Plaquemines, Louisiana · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullins |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Plaquemines-County, Louisiana
Daughter, age 22
Plaquemines-County, Louisiana · implied b. ~1918 — 7 household members
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Police Jury Ward 2 |
| 1935 Residence (County) | Plaquemines Parish |
| Occupation | Farmer |
| Industry | Truck farm |
| Class of Worker | NP |
| Hours Worked | 44 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mullen
Daughter · 1940 · age 22 · b. ~1918 · Louisiana
★ You are viewing this record
Sibling
Nathan Mullen
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Bringier
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Bringier
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nehemiah Mullen
Sibling · 1940 · age 14
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 — Plaquemines-County, Louisiana
Open full size
1940 US Federal Census — Plaquemines-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01439-00040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carlisle, Marie Carlisle | 61 | Wife | Post Mistress | Mississippi |
| 2 | Katherine Carlisle | 12 | Granddaughter | — | Louisiana |
| 3 | Marie Thomas | 38 | Head | Servant | Louisiana |
| 4 | Francis Thomas | 18 | Son | Caretaker | Louisiana |
| 5 | Francis Thomas | 16 | Son | Labourer | Louisiana |
| 6 | Marion Thomas | 13 | Daughter | — | Louisiana |
| 7 | Theresa Thomas | 11 | Daughter | — | Louisiana |
| 8 | Luther Breen | 43 | Head | Ranch Manager | Mississippi |
| 9 | Winnie Breen | 42 | Wife | — | Mississippi |
| 10 | Percy Breen | 17 | Son | Labourer | Mississippi |
| 11 | Myrtle Breen | 15 | Daughter | — | Mississippi |
| 12 | Willie Breen | 13 | Son | — | Louisiana |
| 13 | Ethel Breen | 10 | Daughter | — | Louisiana |
| 14 | Helen Breen | 8 | Daughter | — | Louisiana |
| 15 | Shirley Breen | 6 | Daughter | — | Louisiana |
| 16 | Ray Breen | 4 | Son | — | Louisiana |
| 17 | Dorothy Breen | 2 | Daughter | — | Louisiana |
| 18 | Mary Watkins | 81 | Head | — | Louisiana |
| 19 | Isaac Watkins | 36 | Son | Labourer | Louisiana |
| 20 | Elizabeth Ward | 62 | Head | — | Louisiana |
| 21 | Willie Stokes | 39 | Nephew | Piler | Louisiana |
| 22 | Willie Jr. Stokes | 47 | Head | Labourer | Louisiana |
| 23 | Mary Stokes | 65 | Wife | — | Louisiana |
| 24 | Gilbert Stokes | 30 | Son | — | Louisiana |
| 25 | Evelina Edwards | 54 | Head | Servant | Louisiana |
| 26 | Rose Edwards | 10 | Daughter | — | Louisiana |
| 27 | Thomas King | 67 | Head | Teacher | Alabama |
| 28 | Josie King | 65 | Wife | — | Texas |
| 29 | Lena Gonzales | 22 | Servant | Servant | Louisiana |
| 30 | Nathan Mullen | 56 | Head | Farmer | Louisiana |
| 31 | Virginia Mullen | 49 | Wife | — | Louisiana |
| 32 | Mary Mullen THIS PERSON | 22 | Daughter | Farmer | Louisiana |
| 33 | Nathan Mullen | 17 | Son | Farmer | Louisiana |
| 34 | Nehemiah Mullen | 14 | Son | Farmer | Louisiana |
| 35 | Julia Bringier | 29 | Daughter | Servant | Louisiana |
| 36 | Barbara Bringier | 5 | Daughter | — | Louisiana |
| 37 | Tillman Sanders | 29 | Head | Grader Operator | Louisiana |
| 38 | Isabel Sanders | 23 | Wife | — | Louisiana |
| 39 | Arthell Sanders | 5 | Daughter | — | Louisiana |
| 40 | Tillman Jr. Sanders | 3 | Son | — | Louisiana |
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)