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Frederick Williams — 1940 US Census Record
Model Tree available1940 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), with identified parents Frank & Frank — first a head (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Head
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Williams |
| Given Name | Frederick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | East Pepperell |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Machine Helper |
| Industry | Paper Bag Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1352 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Machine Helper |
| Township / Ward | East Pepperell |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to Frederick | Age | Birth yr |
|---|---|---|---|---|
| Irene Williams | Spouse | — | 20 | ~1920 |
| Frank Williams | Son | — | ~1940 | |
| Frederick Williams | Head | — | 22 | ~1918 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Frederick S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Frederick |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Middlesex-County, Massachusetts
Head, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 3 household members
| Surname | Williams |
| Given Name | Frederick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | East Pepperell |
| 1935 Residence (County) | Middlesex |
| Occupation | Machine Helper |
| Industry | Paper Bag Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1352 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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. Identified parents: father Frank Williams (~0.92 confidence) and father Frank Williams (~0.92 confidence) and mother Belle Williams (~0.92 confidence) and mother Belle Williams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Williams
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Frank Williams
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Belle Williams
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Belle Williams
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frederick Williams
Head · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
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-t0627-01616-00625)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eustina Androschuk | 49 | Wife | — | Austria |
| 2 | Joseph E. Suprenant | 49 | Head | Machine Helper | New Hampshire |
| 3 | Mary C. Suprenant | 51 | Wife | — | New Hampshire |
| 4 | Ethel M. Blake | 67 | Head | — | Massachusetts |
| 5 | William J. Chase | 46 | Head | Proprietor | Massachusetts |
| 6 | Marion M. Chase | 44 | Wife | — | Massachusetts |
| 7 | Marion E. Chase | 4 | Daughter | — | Massachusetts |
| 8 | Nancy Chase | 3 | Daughter | — | Massachusetts |
| 9 | Ralph J. Leary | 45 | Head | Gasoline Filling Station | Massachusetts |
| 10 | Irene S.B. Leary | 48 | Wife | Town Clerk | Massachusetts |
| 11 | Barbara J. Leary | 12 | Daughter | — | New Hampshire |
| 12 | Janet L. Leary | 7 | Daughter | — | New Hampshire |
| 13 | Margaret Salter | 74 | Mother-in-law | — | New York State |
| 14 | Nicos Drakoulakos | 51 | Head | Gumner | Greece |
| 15 | Ireo Drakoulakos | 52 | Wife | — | Greece |
| 16 | George Drakoulakos | 26 | Son | — | Maine |
| 17 | Georgia Drakoulakos | 25 | Daughter | Paper Bag Maker | Maine |
| 18 | Garfalia Drakoulakos | 23 | Daughter | Paper Bag Maker | Massachusetts |
| 19 | Nicoletta Drakoulakos | 18 | Daughter | Mother'S Helper | Massachusetts |
| 20 | Peter Drakoulakos | 14 | Son | — | Massachusetts |
| 21 | Irving C. Blake | 37 | Head | Machine Helper | Maine |
| 22 | Alice M. Blake | 37 | Wife | — | New Hampshire |
| 23 | Frances Jeanette Blake | 14 | Daughter | — | New Hampshire |
| 24 | Mary S. Conley | 57 | Head | Paper Sorter | New York |
| 25 | William J. Conley | 22 | Son | Machine Helper | New York |
| 26 | Frank S. Hatch | 79 | Head | — | New Hampshire |
| 27 | Margaret S. Hatch | 51 | Wife | — | Massachusetts |
| 28 | Harry M. Gates | 51 | Head | Housekeeper | Massachusetts |
| 29 | Frederick Williams THIS PERSON | 22 | Head | Machine Helper | New Hampshire |
| 30 | Irene M. Williams | 20 | Wife | — | Massachusetts |
| 31 | Frank Williams | 0 | Son | — | New Hampshire |
| 32 | Frank G. Williams | 62 | Head | Sta. Engineer | Massachusetts |
| 33 | Lizzie Belle Williams | 64 | Wife | — | Massachusetts |
| 34 | Arthur S. Slow | 29 | Head | Civil Engineer P.T.A. Map Making | Massachusetts |
| 35 | Margaret V. Slow | 28 | Wife | — | Massachusetts |
| 36 | Arthur S. Jr. Slow | 5 | Son | — | Massachusetts |
| 37 | Margaret D. Slow | 4 | Daughter | — | Massachusetts |
| 38 | Leo E. Conley | 31 | Head | Machine Helper | New York |
| 39 | Alice M. Conley | 26 | Wife | — | Massachusetts |
| 40 | Donna J. Conley | 8 | Daughter | — | New Hampshire |
Pedigree Summary
Frederick
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)