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Frederick Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Frederick Williams across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 7-person household.
Age 56
b. ~1884
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Williams |
| Given Name | Frederick R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Billerica |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Filling Station Prop |
| Industry | Filling Station |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Filling Station Prop |
| Township / Ward | Billerica |
| Est. Birth Year | ~1884 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frederick | Age | Birth yr |
|---|---|---|---|---|
| Doris Williams | Daughter | — | 21 | ~1919 |
| Audrey Williams | Daughter | — | 26 | ~1914 |
| Anna Williams | Spouse | — | 62 | ~1878 |
| Mary Williams | Daughter | — | 18 | ~1922 |
| Edgar Williams | Son | — | 23 | ~1917 |
| Mary Williams | Other | — | 75 | ~1865 |
| Frederick Williams | Head | — | 56 | ~1884 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 36
Middlesex, Massachusetts · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Frederick J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1911 |
| Naturalization Status | First papers filed |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Chauffeur |
| Industry | Private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Frederick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 25 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Gardener |
| Industry | Private Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Head, age 56
Middlesex-County, Massachusetts · implied b. ~1884 — 7 household members
| Surname | Williams |
| Given Name | Frederick R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Billerica |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Occupation | Filling Station Prop |
| Industry | Filling Station |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Frederick Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frederick Williams
Head · 1940 · age 56 · b. ~1884 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01603-00374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Thursby | 1 | Son | — | Massachusetts |
| 2 | Nora Kukulski | 70 | Head | — | Poland |
| 3 | Frederick Kukulski | 25 | Son | Carder | Massachusetts |
| 4 | Joseph Kukulski | 28 | Head | Gen. Laborer | Massachusetts |
| 5 | Blanche Kukulski | 24 | Wife | Sewer | Massachusetts |
| 6 | Francis Kukulski | 5 | Son | — | Massachusetts |
| 7 | Mary Kukulski | 2 | Daughter | — | Massachusetts |
| 8 | Stephen Dailey | 40 | Head | Clerk | Massachusetts |
| 9 | Josephine Dailey | 38 | Wife | Bookkeeper | Massachusetts |
| 10 | George Jr. Dailey | 16 | Son | — | Massachusetts |
| 11 | Robert Dailey | 14 | Son | — | Massachusetts |
| 12 | Leonard Dailey | 11 | Son | — | Massachusetts |
| 13 | John Hatch | 37 | Head | Laborer | Massachusetts |
| 14 | Elizabeth Hatch | 38 | Wife | — | Massachusetts |
| 15 | Patricia Hatch | 9 | Daughter | — | Massachusetts |
| 16 | Elizabeth Hatch | 9 | Daughter | — | Massachusetts |
| 17 | Thomas Hatch | 7 | Son | — | Massachusetts |
| 18 | John Hatch | 5 | Son | — | Massachusetts |
| 19 | Theresa Bamford | 14 | Sister-in-law | — | Massachusetts |
| 20 | Frank Januszewski | 45 | Head | — | Poland |
| 21 | Maria Januszewski | 45 | Wife | — | Poland |
| 22 | Fred C. Wright | 23 | Head | Gas Station Att. | Massachusetts |
| 23 | Jeannette Wright | 21 | Wife | — | Massachusetts |
| 24 | Joan Wright | 1 | Daughter | — | Massachusetts |
| 25 | Fred C. Jr. Wright | 0 | Son | — | Massachusetts |
| 26 | Frank Wojtowicz | 66 | Head | — | Poland |
| 27 | Catherine Wojtowicz | 62 | Wife | — | Poland |
| 28 | Julia Wojtowicz | 32 | Daughter | Winder | Massachusetts |
| 29 | Andrew Wojtowicz | 28 | Son | Finisher | Massachusetts |
| 30 | George Wojtowicz | 26 | Son | Finisher | Massachusetts |
| 31 | Helen Wojtowicz | 22 | Daughter | Sock Liner | Massachusetts |
| 32 | Frederick R. Williams THIS PERSON | 56 | Head | Filling Station Prop | England |
| 33 | Anna Williams | 62 | Wife | — | Denmark |
| 34 | Audrey Williams | 26 | Daughter | Bookkeeper | England |
| 35 | Edgar Williams | 23 | Son | Gas Station Helper | England |
| 36 | Doris Williams | 21 | Daughter | Stenographer | Massachusetts |
| 37 | Mary Williams | 18 | Daughter | — | Massachusetts |
| 38 | Mary Williams | 75 | Mother | — | England |
| 39 | Sleughy B. Aralehian | 28 | Head | Stitcher | Turkey |
| 40 | Mary Ethel Aralehian | 28 | Wife | Stitcher | Cambridge |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)