WC
William Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Campbell across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Shipper |
| Industry | Canning Factory |
| Class of Worker | PW |
| Hours Worked | 19 |
| Income (1939) | 450 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Shipper |
| Township / Ward | Boston City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mabel Campbell | Daughter | — | 16 | ~1924 |
| Annie Campbell | Head | — | 48 | ~1892 |
| John Campbell | Son | — | 18 | ~1922 |
| William Campbell | Son | — | 22 | ~1918 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 2
Suffolk, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 12
Suffolk, Massachusetts · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Campbell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Shipper |
| Industry | Canning Factory |
| Class of Worker | PW |
| Hours Worked | 19 |
| Income (1939) | 450 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| 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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Campbell (~0.92 confidence) and father William Campbell (~0.92 confidence) and mother Annie Campbell (~0.92 confidence) and mother Annie Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Campbell
b. ~1896
Source father
● Household
· direct · ~0.92
Father
William Campbell
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Annie Campbell
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Annie Campbell
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Campbell
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Mabel Campbell
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Campbell
Sibling · 1940 · age 18
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01659-00570)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucy Bouchard | 65 | Head | Laundry | Canada French |
| 42 | Que Wong | 60 | Head | Laundry | China |
| 43 | Chunnie Wong | 42 | Wife | — | China |
| 44 | Sang You Wong | 22 | Son | — | China |
| 45 | Charles Wong | 16 | Son | — | Massachusetts |
| 46 | Mary Wong | 15 | Daughter | — | Massachusetts |
| 47 | Mei Wong | 13 | Daughter | — | Massachusetts |
| 48 | Shank Wong | 12 | Daughter | — | Massachusetts |
| 49 | Heam Wong | 11 | Son | — | Massachusetts |
| 50 | Bernice Wong | 8 | Daughter | — | Massachusetts |
| 51 | Richard Wong | 7 | Son | — | Massachusetts |
| 52 | Richard Carroll | 33 | Head | Carpenter | Eire |
| 53 | Catrina Carroll | 38 | Wife | — | Massachusetts |
| 54 | Joseph Carroll | 14 | Son | — | Massachusetts |
| 55 | Mary Carroll | 10 | Daughter | — | Massachusetts |
| 56 | Richard Carroll | 8 | Son | — | Massachusetts |
| 57 | Cornelius Herlihy | 62 | Head | Freight Handler | Eire |
| 58 | Mary Herlihy | 60 | Wife | — | Eire |
| 59 | George Herlihy | 27 | Son | Freight Handler | Massachusetts |
| 60 | Frederick Ault | 54 | Head | Freight Handler | England |
| 61 | Margaret Ault | 42 | Wife | — | Ireland |
| 62 | Frederick Ault | 16 | Son | — | Massachusetts |
| 63 | Joseph Ault | 9 | Son | — | Massachusetts |
| 64 | John Ault | 7 | Son | — | Massachusetts |
| 65 | Annie Campbell | 48 | Head | Maid | Massachusetts |
| 66 | William Campbell THIS PERSON | 22 | Son | Shipper | Massachusetts |
| 67 | John Campbell | 18 | Son | New Worker | Massachusetts |
| 68 | Mabel Campbell | 16 | Daughter | New Worker | Massachusetts |
| 69 | James Murphy | 37 | Head | Foreman | Massachusetts |
| 70 | Margaret Murphy | 37 | Wife | — | Massachusetts |
| 71 | Catharine Murphy | 76 | Mother | — | Massachusetts |
| 72 | Walter Moore | 38 | Head | Shipfitter | Massachusetts |
| 73 | Frank Sutton | 39 | Head | — | Pennsylvania |
| 74 | Violet Sutton | 43 | Wife | — | Virginia |
| 75 | Gerald Sutton | 14 | Son | — | Massachusetts |
| 76 | Leo Francis | 32 | Head | Laborer | Massachusetts |
| 77 | Gladys Francis | 26 | Wife | — | Massachusetts |
| 78 | Marilyn Francis | 4 | Daughter | — | Massachusetts |
| 79 | Lillian Francis | 3 | Daughter | — | Massachusetts |
| 80 | Richard Francis | 1 | Daughter | — | Massachusetts |
Pedigree Summary
William + 2 siblings
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)