MD
Mary Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lavaca-County, Texas
Our Model Tree links this Mary Donnelly across the 1930 and 1940 US Censuses in Lavaca-County, Texas (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 8-person household.
Age 35
b. ~1905
Female
Spouse
Born: Texas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lavaca-County, Texas |
| Surname | Donnelly |
| Given Name | Mary Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lavaca |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Prec 7 |
| Est. Birth Year | ~1905 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margie Donnelly | Daughter | — | 14 | ~1926 |
| Jo Donnelly | Daughter | — | 7 | ~1933 |
| Merdis Donnelly | Daughter | — | 2 | ~1938 |
| Irma Donnelly | Daughter | — | 10 | ~1930 |
| Joseph Donnelly | Head | — | 37 | ~1903 |
| Laverne Donnelly | Son | — | 15 | ~1925 |
| Wilard Donnelly | Son | — | 12 | ~1928 |
| Mary Donnelly | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Lavaca, Texas
Other, age 25
Lavaca, Texas · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Texas |
| Age at First Marriage | 19 |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Lavaca-County, Texas
Spouse, age 35
Lavaca-County, Texas · implied b. ~1905 — 8 household members
| Surname | Donnelly |
| Given Name | Mary Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lavaca |
| Highest Grade | H-1 |
| 1935 Residence | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Donnelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Donnelly
Spouse · 1940 · age 35 · b. ~1905 · Texas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lavaca-County, Texas
Open full size
1940 US Federal Census — Lavaca-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04092-00903)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Garnet Mcclanahan | 9 | Son | — | Texas |
| 2 | John Lee Mcclanahan | 6 | Son | — | Texas |
| 3 | Mary Lucille Mcclanahan | 3 | Daughter | — | Texas |
| 4 | Joe D. Hagan | 42 | Head | Farmer | Texas |
| 5 | Annie Hagan | 41 | Wife | — | Texas |
| 6 | Henry Hagan | 20 | Son | Laborer | Texas |
| 7 | Edna Hagan | 17 | Daughter | — | Texas |
| 8 | Victor Hagan | 14 | Son | — | Texas |
| 9 | Leonard D. Mudd | 58 | Head | Farmer | Texas |
| 10 | Annie Mudd | 53 | Wife | — | Texas |
| 11 | Kelly Mudd | 16 | Son | — | Texas |
| 12 | John Mudd | 14 | Son | — | Texas |
| 13 | Jim Mudd | 12 | Son | — | Texas |
| 14 | Eugene Mudd | 10 | Son | — | Texas |
| 15 | R. B. Mudd | 8 | Son | — | Texas |
| 16 | Joseph E. Donnelly | 37 | Head | Farmer | Texas |
| 17 | Mary Ruth Donnelly THIS PERSON | 35 | Wife | — | Texas |
| 18 | Laverne Donnelly | 15 | Son | — | Texas |
| 19 | Margie Donnelly | 14 | Daughter | — | Texas |
| 20 | Wilard Donnelly | 12 | Son | — | Texas |
| 21 | Irma Mae Donnelly | 10 | Daughter | — | Texas |
| 22 | Jo Ann Donnelly | 7 | Daughter | — | Texas |
| 23 | Merdis Donnelly | 2 | Daughter | — | Texas |
| 24 | York Cleburn Chabow | 42 | Head | Laborer | Texas |
| 25 | Julia Chabow | 41 | Wife | — | Texas |
| 26 | Walter Mitchell | 31 | Head | Laborer | Texas |
| 27 | Alonia Mitchell | 36 | Wife | — | Texas |
| 28 | J. F. Mozisek | 30 | Head | Farmer | Texas |
| 29 | Bertha Mozisek | 29 | Wife | — | Texas |
| 30 | Evelyn Mozisek | 6 | Daughter | — | Texas |
| 31 | Judith Mozisek | 2 | Daughter | — | Texas |
| 32 | Adolf E. Bordovsky | 45 | Head | Farmer | Texas |
| 33 | Rosie Bordovsky | 40 | Wife | — | Texas |
| 34 | Raymond Bordovsky | 7 | Son | — | Texas |
| 35 | Elsie Bordovsky | 1 | Daughter | — | Texas |
| 36 | J. A. Mudd | 62 | Head | Farmer | Texas |
| 37 | Ada Mudd | 59 | Wife | — | Texas |
| 38 | Ray Johnson | 20 | Hired hand | Laborer | Texas |
| 39 | Arthur Herder | 36 | Head | Farmer | Texas |
| 40 | Cassie Herder | 38 | Wife | — | Texas |
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)