WL
William Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this William Lee across the 1910, 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Jacob & Alice — first a son (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Lee |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Manchester Town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Manchester Town |
| Est. Birth Year | ~1904 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Bernice Lee | Daughter | — | 37 | ~1903 |
| Jacob Lee | Head | — | 69 | ~1871 |
| William Lee | Son | — | 36 | ~1904 |
Census Appearances
1910
Essex, Massachusetts
Son, age 6
Essex, Massachusetts · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | William D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Son, age 16
Essex, Massachusetts · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 26
Essex, Massachusetts · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Laborer |
| Industry | Street department |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 36
Essex-County, Massachusetts · implied b. ~1904 — 3 household members
| Surname | Lee |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Manchester Town |
| 1935 Residence (County) | Essex |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| 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 Lee across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Lee (~0.92 confidence) and mother Alice Lee (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Lee
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Alice Lee
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Lee
Son · 1940 · age 36 · b. ~1904 · Massachusetts
★ You are viewing this record
Sibling
Bernice Lee
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01585-00074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Perry | 63 | Lodger | — | Azores |
| 42 | Warren A Haskell | 42 | Head | Carpenter | Massachusetts |
| 43 | Jessie H Haskell | 38 | Wife | — | Nova Scotia |
| 44 | Barbara A Haskell | 4 | Daughter | — | Massachusetts |
| 45 | Susan Hadley | 68 | Boarder | — | Massachusetts |
| 46 | Alice Hadley | 16 | Boarder | — | Massachusetts |
| 47 | Jennie Haskell | 84 | Mother | — | Nova Scotia |
| 48 | Jacob W Lee | 69 | Head | — | Massachusetts |
| 49 | Bernice Lee | 37 | Daughter | Clerk | Massachusetts |
| 50 | William Lee THIS PERSON | 36 | Son | — | Massachusetts |
| 51 | Maud Matthews | 60 | Head | — | New Brunswick |
| 52 | Sarah Thomas | 29 | Daughter | — | Massachusetts |
| 53 | Harold Thomas | 30 | Son-in-law | — | Massachusetts |
| 54 | Alexander A Donald | 42 | Head | Gardener | Massachusetts |
| 55 | Alice J Donald | 34 | Wife | Housewife | Maine |
| 56 | Carol Donald | 7 | Daughter | — | Massachusetts |
| 57 | William Donald | 4 | Son | — | Massachusetts |
| 58 | Bruce Donald | 3 | Son | — | Massachusetts |
| 59 | Robert Donald | 1 | Son | — | Massachusetts |
| 60 | Teresa O'Neil | 27 | Head | — | Nova Scotia |
| 61 | Charles Hawley | 28 | Head | Laborer | Massachusetts |
| 62 | Evelyn D Hawley | 22 | Wife | — | Massachusetts |
| 63 | George Hawley | 3 | Son | — | Massachusetts |
| 64 | Ray Hawley | 1 | Son | — | Massachusetts |
| 65 | Ralph Hawley | 1 | Son | — | Massachusetts |
| 66 | Charles E Chadwick | 72 | Head | Retired | New Brunswick |
| 67 | Julia A Chadwick | 76 | Wife | — | Nova Scotia |
| 68 | David Chadwick | 46 | Son | Plumber Helper | Massachusetts |
| 69 | Margaret Burgess | 23 | Granddaughter | Maid | Massachusetts |
| 70 | Walter Stanley | 45 | Head | Trimmer | Massachusetts |
| 71 | Laura Stanley | 40 | Wife | House Work | Massachusetts |
| 72 | Blanche Stanley | 21 | Daughter | — | Massachusetts |
| 73 | Robert Stanley | 19 | Son | — | Massachusetts |
| 74 | Otis Stanley | 16 | Son | — | Massachusetts |
| 75 | Blanche De Cleau | 29 | Sister-in-law | — | Massachusetts |
| 76 | Eugene J Machain | 27 | Head | Truck Driver | Massachusetts |
| 77 | Rose Machain | 23 | Wife | — | Massachusetts |
| 78 | Eugene Machain | 3 | Son | — | Massachusetts |
| 79 | Edward A Killam | 52 | Head | Automobile Mech. | Massachusetts |
| 80 | Teresa Killam | 57 | Wife | — | New York |
Related Census Records
Pedigree Summary
William + 1 sibling
Gen 1 · 2 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)