MW
Mary William — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this Mary William across the 1930 and 1940 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 5-person household.
Age 42
b. ~1888
Female
Head
Born: Italy
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Italy |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Age at First Marriage | 22 |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Italian |
| Home Owned/Rented | R |
| Home Value / Rent | 18 |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
| Township / Ward | Brockton City |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Loda William | Daughter | — | 8 | ~1922 |
| Annie William | Daughter | — | 17 | ~1913 |
| Mary William | Head | — | 42 | ~1888 |
| Matthew William | Son | — | 18 | ~1912 |
| Angelina William | Daughter | — | 14 | ~1916 |
Census Appearances
1930
Plymouth, Massachusetts
Head, age 42
Plymouth, Massachusetts · implied b. ~1888 — 5 household members
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Italy |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Age at First Marriage | 22 |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read/Write | Yes |
| Mother Tongue | Italian |
| Home Owned/Rented | R |
| Home Value / Rent | 18 |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
1940
Plymouth-County, Massachusetts
Head, age 52
Plymouth-County, Massachusetts · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Italy |
| 1935 Residence (City) | Brockton City |
| 1935 Residence (County) | Plymouth |
| Naturalization Status | Alien |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
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 William across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary William
Head · 1930 · age 42 · b. ~1888 · 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 — Plymouth, Massachusetts
Open full size
1930 US Federal Census — Plymouth, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel938:1142)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Sylvester | 34 | Head | Operator | Italy |
| 52 | Rose Sylvester | 30 | Wife-H | — | Italy |
| 53 | Anthony Sylvester | 10 | Son | — | Massachusetts |
| 54 | Louis J. Sylvester | 9 | Son | — | Massachusetts |
| 55 | Eugene Sylvester | 5 | Son | — | Massachusetts |
| 56 | John Sylvester | 0 | Son | — | Massachusetts |
| 57 | Albert A. Augenti | 40 | Head | Puller | Italy |
| 58 | Anna Augenti | 34 | Wife-H | — | Italy |
| 59 | James Augenti | 16 | Son | — | Massachusetts |
| 60 | Laura Augenti | 14 | Daughter | — | Massachusetts |
| 61 | Nicholas Augenti | 12 | Son | — | Massachusetts |
| 62 | Albert Augenti | 8 | Son | — | Massachusetts |
| 63 | Alexandra Columbo | 33 | Head | Laster | Italy |
| 64 | Lucy Columbo | 24 | Wife-H | — | Italy |
| 65 | Carmelina Columbo | 4 | Daughter | — | Massachusetts |
| 66 | Louis Columbo | 2 | Son | — | Massachusetts |
| 67 | Charles Augenti | 42 | Head | Laster | Italy |
| 68 | Mary E. Augenti | 38 | Wife-H | — | Connecticut |
| 69 | Sylvia Augenti | 5 | Daughter | — | Massachusetts |
| 70 | Charles Jr. Augenti | 3 | Son | — | Massachusetts |
| 71 | Mary William THIS PERSON | 42 | Head | — | Italy |
| 72 | Matthew William | 18 | Son | Printer | Massachusetts |
| 73 | Annie William | 17 | Daughter | Candy Maker | Massachusetts |
| 74 | Angelina William | 14 | Daughter | — | Massachusetts |
| 75 | Loda William | 8 | Daughter | — | Massachusetts |
| 76 | Ludo Guglielmo | 28 | Head | Laster | Italy |
| 77 | Jennie Guglielmo | 28 | Wife-H | — | Italy |
| 78 | Louis Guglielmo | 6 | Son | — | Massachusetts |
| 79 | Fanny Guglielmo | 5 | Daughter | — | Massachusetts |
| 80 | Saverina Guglielmo | 2 | Daughter | — | Massachusetts |
| 81 | Julia Guglielmo | 0 | Daughter | — | Massachusetts |
| 82 | Martin J. O'Neill | 46 | Head | Carpenter | North Ireland |
| 83 | Catherine M. O'Neill | 42 | Wife-H | — | Irish Free State |
| 84 | Albert O'Neill | 21 | Son | — | Massachusetts |
| 85 | Walter J. O'Neill | 18 | Son | — | Massachusetts |
| 86 | Francis E. O'Neill | 15 | Son | — | Massachusetts |
| 87 | Michael Mahoney | 74 | Head | Brummer | Irish Free State |
| 88 | Mary E. Mahoney | 70 | Wife-H | — | Irish Free State |
| 89 | Michael G. Byrne | 34 | Head | Janitor | Massachusetts |
| 90 | Helen F. Byrne | 29 | Wife-H | — | Massachusetts |
| 91 | Alice M. Byrne | 8 | Daughter | — | Massachusetts |
| 92 | Virginia L. Byrne | 7 | Daughter | — | Massachusetts |
| 93 | Mary Byrne | 36 | Sister | — | Massachusetts |
| 94 | Louis J. Ruft | 39 | Head | Stitcher | Massachusetts |
| 95 | Alice A. Ruft | 31 | Wife-H | — | Massachusetts |
| 96 | Raymond J. Ruft | 10 | Son | — | Massachusetts |
| 97 | Arthur W. Ruft | 7 | Son | — | Massachusetts |
| 98 | Henry Featherstone | 62 | Head | Finisher | England |
| 99 | Eva A. Featherstone | 57 | Wife-H | — | Canada-English |
| 100 | Ruth S. Featherstone | 19 | Daughter | Clerk | 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)