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Mary Mcgrath — 1930 US Census Record
Model Tree available1930 United States Federal Census · Bristol, Massachusetts
Our Model Tree links this Mary Mcgrath across the 1910, 1920 and 1930 US Censuses in Bristol, Massachusetts (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a daughter (b.~1908), then head of a 6-person household.
Age 22
b. ~1908
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bristol, Massachusetts |
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Teacher |
| Township / Ward | Fall River City |
| Est. Birth Year | ~1908 |
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 |
|---|---|---|---|---|
| Catherine Mcgrath | Daughter | — | 24 | ~1906 |
| Mary Mcgrath | Daughter | — | 22 | ~1908 |
| Helen Mcgrath | Daughter | — | 28 | ~1902 |
| Margaret Mcgrath | Daughter | — | 30 | ~1900 |
| Edward Mcgrath | Head | — | 55 | ~1875 |
| Delia Mcgrath | Other | — | 52 | ~1878 |
Census Appearances
1910
Bristol, Massachusetts
Daughter, age 2
Bristol, Massachusetts · implied b. ~1908 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Bristol, Massachusetts
Daughter, age 12
Bristol, Massachusetts · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Bristol, Massachusetts
Daughter, age 22
Bristol, Massachusetts · implied b. ~1908 — 6 household members
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Mcgrath across 3 US Census years (1910, 1920 and 1930) in Bristol, Massachusetts, using XGBoost record linkage. Identified parents: father Edward Mcgrath (~0.92 confidence) and father Edward Mcgrath (~0.92 confidence) and mother Delia Mcgrath (~0.92 confidence) and father Edward Mcgrath (~0.92 confidence) and mother Julia Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Mcgrath
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Edward Mcgrath
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Delia Mcgrath
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Edward Mcgrath
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Julia Mcgrath
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mcgrath
Daughter · 1930 · age 22 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Helen Mcgrath
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcgrath
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcgrath
Sibling · 1930 · age 30
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 — Bristol, Massachusetts
Open full size
1930 US Federal Census — Bristol, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel888:0359)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Omer O. Bedard | 53 | Head | Carpenter | Massachusetts |
| 2 | Ernestine Bedard | 47 | Wife-H | — | Connecticut |
| 3 | Omer V. Bedard | 14 | Son | — | Massachusetts |
| 4 | Raoul B. Gagnon | 33 | Head | Projectionist | Massachusetts |
| 5 | Alice G. Gagnon | 27 | Wife-H | — | Massachusetts |
| 6 | Edward Mcgrath | 55 | Head | Sampler | Massachusetts |
| 7 | Delia J. Mcgrath | 52 | Wife-H | — | Massachusetts |
| 8 | Margaret Mcgrath | 30 | Daughter | Clerk | Massachusetts |
| 9 | Helen Mcgrath | 28 | Daughter | Stenographer | Massachusetts |
| 10 | Catherine Mcgrath | 24 | Daughter | Teacher | Massachusetts |
| 11 | Mary Mcgrath THIS PERSON | 22 | Daughter | Teacher | Massachusetts |
| 12 | Joseph Delaney | 44 | Head | Investigator | Massachusetts |
| 13 | Mary G. Delaney | 39 | Wife-H | — | Massachusetts |
| 14 | Robert J. Delaney | 4 | Son | — | Massachusetts |
| 15 | Mary A. Coffey | 65 | Head | — | Irish Free State |
| 16 | Bridget J. Coffey | 60 | Sister | — | Irish Free State |
| 17 | John F. Murphy | 46 | Head | Asst. Superintendent | Massachusetts |
| 18 | Agnes G. Murphy | 44 | Wife-H | — | Massachusetts |
| 19 | John Murphy | 8 | Son | — | Massachusetts |
| 20 | Kathleen Murphy | 5 | Daughter | — | Massachusetts |
| 21 | Mary Murphy | 54 | Sister | Weaver | Massachusetts |
| 22 | Charles St. Germain | 49 | Head | Collector | Massachusetts |
| 23 | Mary L. St. Germain | 49 | Wife-H | — | Canada-French |
| 24 | Ovide J. St. Germain | 24 | Son | Salesman | Massachusetts |
| 25 | Blanche St. Germain | 20 | Daughter | Stitcher | Massachusetts |
| 26 | Doris St. Germain | 18 | Daughter | Stitcher | Massachusetts |
| 27 | Raymond St. Germain | 16 | Son | Packer | Massachusetts |
| 28 | Edna St. Germain | 13 | Daughter | — | Massachusetts |
| 29 | Lorraine St. Germain | 10 | Daughter | — | Massachusetts |
| 30 | Connie St. Germain | 8 | Daughter | — | Massachusetts |
| 31 | William Jackson | 56 | Head | Salesman | England |
| 32 | Hannah Jackson | 58 | Wife-H | — | Rhode Island |
| 33 | Grace C. Jackson | 26 | Daughter | Bookkeeper | Massachusetts |
| 34 | William H. Jackson | 23 | Son | Teacher | Massachusetts |
| 35 | Michael J. Lally | 58 | Head | Fireman | Massachusetts |
| 36 | Catherine Lally | 55 | Wife-H | — | Irish Free State |
| 37 | Gertrude Lally | 30 | Daughter | Operator | Massachusetts |
| 38 | John Lally | 24 | Son | Operator | Massachusetts |
| 39 | Catherine Lally | 21 | Daughter | Teacher | Massachusetts |
| 40 | Thomas Harvey | 40 | Head | Folder | Massachusetts |
| 41 | Margaret Harvey | 28 | Wife-H | — | Massachusetts |
| 42 | Thomas Harvey | 4 | Son | — | Massachusetts |
| 43 | Robert Harvey | 0 | Son | — | Massachusetts |
| 44 | Joseph E. Murphy | 51 | Head | Storekeeper | Massachusetts |
| 45 | Catherine Murphy | 43 | Sister-H | Telephone Operator | Massachusetts |
| 46 | Mary T. Whiteman | 60 | Sister | Maid | Michigan |
| 47 | Catherine A. Hurley | 54 | Head-H | — | Massachusetts |
| 48 | Joseph Hurley | 54 | Son | Chauffeur | Massachusetts |
| 49 | Helen Hurley | 49 | Daughter | Teacher | Massachusetts |
| 50 | Emily Hurley | 46 | Daughter | — | Massachusetts |
Related Census Records
Pedigree Summary
Mary + 3 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 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)