MR
Mary Roach — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Orleans, Louisiana
Our Model Tree links this Mary Roach across the 1930 and 1940 US Censuses in Orleans, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 6-person household.
Age 4
b. ~1926
Female
Daughter
Born: Louisiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Orleans, Louisiana |
| Surname | Roach |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Additional Details | |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | New Orleans City |
| Est. Birth Year | ~1926 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Roach | Daughter | — | 4 | ~1926 |
| Arthur Roach | Head | — | 57 | ~1873 |
| Walter Roach | Son | — | ~1930 | |
| Arthur Roach | Son | — | 8 | ~1922 |
| William Roach | Son | — | 2 | ~1928 |
| Elizabeth Roach | Spouse | — | 30 | ~1900 |
Census Appearances
1930
Orleans, Louisiana
Daughter, age 4
Orleans, Louisiana · implied b. ~1926 — 6 household members
| Surname | Roach |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Daughter, age 13
Orleans-County, Louisiana · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roch |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans City |
| 1935 Residence (County) | Orleans |
| Highest Grade | No 4 |
| 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 Roach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Roach
Daughter · 1930 · age 4 · b. ~1926 · Louisiana
★ You are viewing this record
Sibling
William Roach
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Roach
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Roach
Sibling · 1930 · age 8
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
1930 US Federal Census — Orleans, Louisiana
Open full size
1930 US Federal Census — Orleans, Louisiana
Page Contents
31 people indexed on this census page (ia:1930:15thcensus801unit:0036)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur Roach | 57 | Head | — | Louisiana |
| 2 | Elizabeth Roach | 30 | Wife | Saleswoman | Louisiana |
| 3 | Arthur Roach | 8 | Son | — | Louisiana |
| 4 | Mary Roach THIS PERSON | 4 | Daughter | — | Louisiana |
| 5 | William Roach | 2 | Son | — | Louisiana |
| 6 | Walter Roach | 0 | Son | — | Louisiana |
| 7 | James Guerin | 38 | Head | Porter | Louisiana |
| 8 | Gertrude Guerin | 29 | Wife | — | Louisiana |
| 9 | James Guerin | 8 | Son | — | Louisiana |
| 10 | John Guerin | 2 | Son | — | Louisiana |
| 11 | Carrie Guerin | 58 | Mother | Private Family | Louisiana |
| 12 | John Guerin | 28 | Brother | — | Louisiana |
| 13 | George Morris | 31 | Head | Longshoreman | Louisiana |
| 14 | Lillie Morris | 32 | Wife | — | Louisiana |
| 15 | Edward Morris | 14 | Son | — | Louisiana |
| 16 | Mary Morris | 7 | Daughter | — | Louisiana |
| 17 | Morris Morris | 4 | Son | — | Louisiana |
| 18 | James Morris | 2 | Son | — | Louisiana |
| 19 | Anna Mcnulty | 27 | Head | Servant | Mississippi |
| 20 | Edward Mcnulty | 7 | Son | — | Louisiana |
| 21 | Isaac Mcnulty | 4 | Son | — | Louisiana |
| 22 | Jessie Mcnulty | 2 | Daughter | — | Louisiana |
| 23 | James James | 27 | Head | Longshoreman | Louisiana |
| 24 | Minnie James | 25 | Wife | Laundress | Mississippi |
| 25 | James James | 3 | Son | — | Louisiana |
| 26 | Beatrice James | 0 | Daughter | — | Louisiana |
| 27 | Mary James | 50 | Mother | Cook | Louisiana |
| 28 | Richard James | 20 | Brother | Truck Driver | Louisiana |
| 29 | Edward Cain | 50 | Head | Longshoreman | Louisiana |
| 30 | Martha Cain | 45 | Wife | — | Louisiana |
| 31 | Eugene Cain | 18 | Son | Salesman | Louisiana |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)