WM
William Mcgrath — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this William Mcgrath across the 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 10-person household.
Age 37
b. ~1893
Male
Head
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McGrath |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Book Binder |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Book Binder |
| Township / Ward | City Of Boston |
| Est. Birth Year | ~1893 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Edward Mcgrath | Son | — | 8 | ~1922 |
| Margaret Mcgrath | Spouse | — | 37 | ~1893 |
| Paul Mcgrath | Son | — | 4 | ~1926 |
| William Mcgrath | Son | — | 11 | ~1919 |
| John Mcgrath | Son | — | 14 | ~1916 |
| Marie Mcgrath | Daughter | — | 2 | ~1928 |
| J Mcgrath | Son | — | 10 | ~1920 |
| Phyllis Mcgrath | Daughter | — | 5 | ~1925 |
| William Mcgrath | Head | — | 37 | ~1893 |
| Martha Mcgrath | Daughter | — | 13 | ~1917 |
Census Appearances
1920
Suffolk, Massachusetts
Head, age 26
Suffolk, Massachusetts · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Head, age 37
Suffolk, Massachusetts · implied b. ~1893 — 10 household members
| Surname | McGrath |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Book Binder |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Veteran | No |
| 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 William Mcgrath across 2 US Census years (1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
William Mcgrath
Head · 1930 · age 37 · b. ~1893 · 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:massachusettscensus00reel948:1077)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Page | 17 | Daughter | Clerk | Massachusetts |
| 2 | Alice Page | 14 | Daughter | — | Massachusetts |
| 3 | William Page | 13 | Son | — | Massachusetts |
| 4 | Ann Carroll | 60 | Lodger | Dressmaker | Ireland |
| 5 | Arthur J Tremblay | 46 | Head | Shoemaker | Canada-French |
| 6 | Elva Ma Tremblay | 33 | Wife | Homemaker | Canada-French |
| 7 | Harry Tremblay | 8 | Son | — | Massachusetts |
| 8 | Verl Tremblay | 5 | Son | — | Massachusetts |
| 9 | Frances Tremblay | 4 | Daughter | — | Massachusetts |
| 10 | Mabel Mclean | 34 | Head | Homemaker | Canada-French |
| 11 | Catherine Matheson | 75 | Lodger | Clerk | Scotland |
| 12 | Vincent Gilroy | 39 | Head | Painter | Canada-English |
| 13 | Florence Gilroy | 37 | Wife | Homemaker | England |
| 14 | Vincent M Gilroy | 20 | Son | Painter | Canada-English |
| 15 | Wilfred Gilroy | 10 | Son | — | Canada-English |
| 16 | Pierre Gilroy | 4 | Son | — | New Hampshire |
| 17 | John Gilroy | 3 | Son | — | Massachusetts |
| 18 | Henry Dean | 74 | Head | Painter | Massachusetts |
| 19 | Peter Cutlas | 38 | Head | Counterman | Greece |
| 20 | Irene Cutlas | 34 | Wife | Homemaker | Greece |
| 21 | Anthony Cutlas | 8 | Son | — | Massachusetts |
| 22 | Despo Cutlas | 9 | Daughter | — | Massachusetts |
| 23 | Ethel Cutlas | 7 | Daughter | — | Massachusetts |
| 24 | Peter Cutlas | 6 | Son | — | Massachusetts |
| 25 | Anastasios Cutlas | 4 | Son | — | Massachusetts |
| 26 | Paul Demos | 40 | Head | Counterman | Greece |
| 27 | Bessie Demos | 30 | Wife | Homemaker | Greece |
| 28 | Pauline Demos | 2 | Daughter | — | Massachusetts |
| 29 | George Demos | 0 | Son | — | Massachusetts |
| 30 | Roy J Hurlbert | 38 | Head | Clerk | New York |
| 31 | Josephine Hurlbert | 44 | Wife | — | Massachusetts |
| 32 | Marie Hurlbert | 6 | Daughter | — | Massachusetts |
| 33 | Susan M Purcell | 70 | Head | Clerk | Massachusetts |
| 34 | Mary A Desmond | 70 | Head | Homemaker | Ireland |
| 35 | Catherine Desmond | 38 | Daughter | Operator | Massachusetts |
| 36 | Robert Desmond | 43 | Son | Polisher | Massachusetts |
| 37 | William J Mcgrath THIS PERSON | 37 | Head | Book Binder | Massachusetts |
| 38 | Margaret M Mcgrath | 37 | Wife | Homemaker | Massachusetts |
| 39 | John J Mcgrath | 14 | Son | — | Massachusetts |
| 40 | Martha Mcgrath | 13 | Daughter | — | Massachusetts |
| 41 | William F Mcgrath | 11 | Son | — | Massachusetts |
| 42 | J Leo Mcgrath | 10 | Son | — | Massachusetts |
| 43 | Edward Mcgrath | 8 | Son | — | Massachusetts |
| 44 | Phyllis Mcgrath | 5 | Daughter | — | Massachusetts |
| 45 | Paul Mcgrath | 4 | Son | — | Massachusetts |
| 46 | Marie Mcgrath | 2 | Daughter | — | Massachusetts |
| 47 | Casper Obert | 78 | Head | Retired | Germany |
| 48 | Catherine Obert | 73 | Wife | — | Germany |
| 49 | Frank C Obert | 43 | Son | Policeman | Massachusetts |
| 50 | William H Duffy | 65 | Head | Yardman | Massachusetts |
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)