WM
William Mason — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this William Mason across the 1900, 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 3-person household.
Age 53
b. ~1877
Male
Head
Born: Virginia
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Mason |
| Given Name | William S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 21 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Occupation | Meat Cutter |
| Industry | Wholesale Meat |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Meat Cutter |
| Township / Ward | Arlington Town |
| Est. Birth Year | ~1877 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Helen Mason | Daughter | — | 24 | ~1906 |
| William Mason | Head | — | 53 | ~1877 |
| Annie Mason | Other | — | 53 | ~1877 |
Census Appearances
1900
Middlesex, Massachusetts
Head, age 24
Middlesex, Massachusetts · implied b. ~1876 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | William S |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Virginia |
| Birth Month | Dec |
| Birth Year | 1876 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | salesman wholesale |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1910
Middlesex, Massachusetts
Head, age 33
Middlesex, Massachusetts · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | William S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Virginia |
| Years Married | 12 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Meat cutter |
| Industry | Market |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1920
Middlesex, Massachusetts
Head, age 43
Middlesex, Massachusetts · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Salesman |
| Industry | Beef Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Middlesex, Massachusetts
Head, age 53
Middlesex, Massachusetts · implied b. ~1877 — 3 household members
| Surname | Mason |
| Given Name | William S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 21 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Meat Cutter |
| Industry | Wholesale Meat |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Mason across 4 US Census years (1900, 1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Mason
Head · 1930 · age 53 · b. ~1877 · 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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel914:0068)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilfred J Giffin | 21 | Son | — | Massachusetts |
| 2 | Clara B Giffin | 43 | Daughter | Motorman | Canada English |
| 3 | Ralph V Giffin | 32 | Son-in-law | — | Canada English |
| 4 | Yvonne L Giffin | 11 | Niece | — | Canada English |
| 5 | Lorraine M Giffin | 11 | Niece | — | Canada English |
| 6 | Leon R Giffin | 11 | Nephew | — | Canada English |
| 7 | William H Norton | 68 | Head | Manager | Canada English |
| 8 | Sarah A Norton | 63 | Wife-H | — | Canada English |
| 9 | William S Mason THIS PERSON | 53 | Head | Meat Cutter | Virginia |
| 10 | Annie B Mason | 53 | Wife-H | — | Canada English |
| 11 | Helen V Mason | 24 | Daughter | Accountant | Virginia |
| 12 | Howard R Burgess | 52 | Head | Salesman | Massachusetts |
| 13 | Elizabeth G Burgess | 55 | Wife-H | — | Canada English |
| 14 | Justin L Coombs | 62 | Head | Clerk | Massachusetts |
| 15 | Stella L Coombs | 52 | Wife-H | — | Massachusetts |
| 16 | Katherine L Coombs | 25 | Daughter | Info Clerk | Massachusetts |
| 17 | Andrew Knutson | 75 | Head | — | Norway |
| 18 | Ella Knutson | 40 | Daughter | Clerk | Massachusetts |
| 19 | John T Prince | 35 | Head | Accountant | Wales |
| 20 | Elsie K Prince | 32 | Wife-H | — | Canada English |
| 21 | Arthur H Prince | 59 | Father | — | Wales |
| 22 | Arthur Dalton | 50 | Head | Agent | Canada English |
| 23 | Mabel S Dalton | 47 | Wife-H | — | Canada English |
| 24 | George A Dalton | 18 | Son | — | Massachusetts |
| 25 | Marjorie Dalton | 31 | Niece | — | Canada English |
| 26 | John C Duncan | 57 | Head | Instructor | Scotland |
| 27 | Helen Duncan | 58 | Wife-H | Salesman | Scotland |
| 28 | Gilbert G Duncan | 27 | Son | — | Massachusetts |
| 29 | Lorena G Duncan | 23 | Son | Clerk | Massachusetts |
| 30 | Helen L Duncan | 17 | Daughter | Clerk | Massachusetts |
| 31 | Mary E Arada | 49 | Head | — | Azores Island |
| 32 | John S Arada | 28 | Son | Salesman | Massachusetts |
| 33 | Miguel Arada | 25 | Son | Chauffeur | Massachusetts |
| 34 | Theresa Arada | 20 | Daughter | Stenographer | Massachusetts |
| 35 | Mary Arada | 22 | Daughter | — | Massachusetts |
| 36 | Irving Arada | 26 | Son-in-law | Finisher | Azores Island |
| 37 | Jerry Dorothy Arada | 0 | Grand-daughter | — | Massachusetts |
| 38 | Leonard Arada | 0 | Grand-son | — | Massachusetts |
| 39 | Timothy C Idone | 47 | Head | Printer | Massachusetts |
| 40 | Margaret A Idone | 46 | Wife-H | — | Massachusetts |
| 41 | Francis Idone | 14 | Son | — | Massachusetts |
| 42 | Gertrude Idone | 11 | Daughter | — | Massachusetts |
| 43 | Virginia Idone | 10 | Daughter | — | Massachusetts |
| 44 | Albert Smith | 23 | Head | Clerk | Scotland |
| 45 | Harriet B Smith | 20 | Wife-H | — | Massachusetts |
| 46 | Sophia S Jackson | 45 | Mother-in-law | — | Massachusetts |
| 47 | Carl S Simon | 34 | Head | Clerk | New York |
| 48 | Dorothy Simon | 31 | Wife-H | — | Idaho |
| 49 | Mother Simon | 66 | — | — | New Hampshire |
| 50 | Carl A Simon | 4 | Son | — | 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)