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Mary Mcgrath — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Mcgrath across the 1920, 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.
Age 57
b. ~1873
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1893 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Matron |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Matron |
| Township / Ward | Boston |
| Est. Birth Year | ~1873 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Muriel Mcgrath | Daughter | — | 26 | ~1904 |
| Mary Mcgrath | Head | — | 57 | ~1873 |
| Peter Mcgrath | Son | — | 28 | ~1902 |
Census Appearances
1920
Suffolk, Massachusetts
Head, age 48
Suffolk, Massachusetts · implied b. ~1872 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Cleaning |
| Industry | Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Suffolk, Massachusetts
Head, age 57
Suffolk, Massachusetts · implied b. ~1873 — 3 household members
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1893 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Matron |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Suffolk-County, Massachusetts
Other, age 69
Suffolk-County, Massachusetts · implied b. ~1871 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Mary |
| Relationship to Head | Patient |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Single |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Alien |
| Industry | 903 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcgrath
Head · 1930 · age 57 · b. ~1873 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula944unit:0159)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Annie Salzman | 50 | Head | — | Russia |
| 52 | Leo Salzman | 17 | Son | — | New York |
| 53 | Francis Salzman | 14 | Daughter | — | Massachusetts |
| 54 | Armand Finnecco | 23 | Head | Shipper | Massachusetts |
| 55 | Rose Finnecco | 23 | Wife | — | Maine |
| 56 | Mary Mcgrath THIS PERSON | 57 | Head | Matron | Ireland |
| 57 | Peter Mcgrath | 28 | Son | Chauffeur | Massachusetts |
| 58 | Muriel Mcgrath | 26 | Daughter | Bookkeeper | Massachusetts |
| 59 | John Angelone | 23 | Head | Apprentice | Massachusetts |
| 60 | Josephine Angelone | 20 | Wife | — | Massachusetts |
| 61 | John J. Angelone | 2 | Son | — | Massachusetts |
| 62 | Bessie R. Angelone | 0 | Son | — | Massachusetts |
| 63 | John De Gregorio | 44 | Head | Laborer | Italy |
| 64 | Mary De Gregorio | 44 | Wife | — | Italy |
| 65 | Lucy De Gregorio | 19 | Daughter | Stitcher | Massachusetts |
| 66 | Guerino De Gregorio | 16 | Son | — | Massachusetts |
| 67 | Jennie De Gregorio | 12 | Daughter | — | Massachusetts |
| 68 | Josephine De Gregorio | 7 | Daughter | — | Massachusetts |
| 69 | Joseph Giordano | 62 | Head | Laborer | Italy |
| 70 | Matilda Giordano | 52 | Wife | — | Italy |
| 71 | Antonia Beaucheane | 55 | Head | Operator | Canada French |
| 72 | Lucy Beaucheane | 55 | Wife | — | Vermont |
| 73 | Napoleon Beaucheane | 28 | Son | Washer | New Hampshire |
| 74 | Alfred Beaucheane | 19 | Son | Washer | New Hampshire |
| 75 | John Roucher | 31 | Head | Helper | New Hampshire |
| 76 | Vera Roucher | 31 | Wife | Folder | New Hampshire |
| 77 | Morris Levine | 32 | Head | Tailor | Russia |
| 78 | Rose Levine | 26 | Wife | — | Hungary |
| 79 | Marion Levine | 2 | Daughter | — | Massachusetts |
| 80 | Harry Glasser | 49 | Head | Tailor | New York |
| 81 | Madeline Glasser | 38 | Wife | — | Maryland |
| 82 | Morris Levine | 30 | Boarder | Chauffeur | Russia |
| 83 | Robert Abramo | 31 | Head | Chauffeur | Russia |
| 84 | Rebecca Abramo | 30 | Wife | — | Russia |
| 85 | Charles Abramo | 9 | Son | — | Massachusetts |
| 86 | Louis Heimes | 61 | Head | Retired | Russia |
| 87 | Hattie Heimes | 51 | Wife | — | Russia |
| 88 | Louis Jr. Heimes | 33 | Son | Musician | Russia |
| 89 | Jack Heimes | 27 | Son | Clerk | Russia |
| 90 | Frances Heimes | 21 | Daughter | Bookkeeper | Russia |
| 91 | Rose Heimes | 19 | Daughter | Bookkeeper | Russia |
| 92 | Simon Kaplan | 45 | Head | Salesman | Russia |
| 93 | Mary Kaplan | 44 | Wife | — | Massachusetts |
| 94 | Harold Kaplan | 17 | Son | — | Massachusetts |
| 95 | John Grossman | 26 | Head | Cutter | Roumania |
| 96 | Rose Grossman | 21 | Wife | — | Austria |
| 97 | Thomas Fungaro | 55 | Head | Presser | Italy |
| 98 | Annie Fungaro | 45 | Wife | — | Rhode Island |
| 99 | Peter Thomas | 34 | Head | Waiter | Lithuania |
| 100 | Isidra Thomas | 28 | Wife | — | Lithuania |
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)