WC
William Cunningham — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Cunningham across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & William — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Cunningham |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden (City) |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Miller |
| Industry | Spice Mill |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 75 |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Miller |
| Township / Ward | Malden City |
| Est. Birth Year | ~1919 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Cunningham | Daughter | — | 19 | ~1921 |
| Mary Cunningham | Daughter | — | 30 | ~1910 |
| Barbara Cunningham | Daughter | — | 24 | ~1916 |
| William Cunningham | Head | — | 54 | ~1886 |
| Richard Cunningham | Son | — | 28 | ~1912 |
| William Cunningham | Son | — | 21 | ~1919 |
| Margaret Cunningham | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| 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
Middlesex-County, Massachusetts
Son, age 21
Middlesex-County, Massachusetts · implied b. ~1919 — 7 household members
| Surname | Cunningham |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden (City) |
| 1935 Residence (County) | Middlesex |
| Occupation | Miller |
| Industry | Spice Mill |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 75 |
| Highest Grade | C-1 |
| 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 Cunningham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Cunningham (~0.92 confidence) and father William Cunningham (~0.92 confidence) and mother Margaret Cunningham (~0.92 confidence) and father William Cunningham (~0.92 confidence) and mother Margaret Cunningham (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Cunningham
b. ~1875
Source father
● Household
· direct · ~0.92
Father
William Cunningham
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Margaret Cunningham
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
William Cunningham
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Margaret Cunningham
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Cunningham
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Elizabeth Cunningham
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Cunningham
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cunningham
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Cunningham
Sibling · 1940 · age 28
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01608-00638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Royat | 45 | Head | Baker | Greece |
| 2 | Dorothy Royat | 36 | Wife | — | Massachusetts |
| 3 | Doris W Royat | 18 | Daughter | Waitress | Massachusetts |
| 4 | Richard Royat | 3 | Son | — | Massachusetts |
| 5 | Arthur Brussard | 35 | Head | Carpenter | Canada French |
| 6 | Anne Brussard | 32 | Wife | — | Eire |
| 7 | Arthur M. Brussard | 2 | Son | — | Massachusetts |
| 8 | Robert P. Brussard | 0 | Son | — | Massachusetts |
| 9 | Sylvia Rose Brussard | 0 | Daughter | — | Massachusetts |
| 10 | George D. Tucker | 49 | Head | Shoe Buyer | Maine |
| 11 | Lucy A Tucker | 45 | Wife | — | Maine |
| 12 | Martha Thompson | 60 | Head | — | Massachusetts |
| 13 | Florence Thompson | 30 | Daughter | Dietician | Massachusetts |
| 14 | Wesley Chellis | 24 | Head | Dental Mechanic | Massachusetts |
| 15 | Paul Helen Chellis | 24 | Wife | Domestic Worker | Vermont |
| 16 | Minnie E Crosby | 77 | Head | — | Massachusetts |
| 17 | Albert W Bailey | 72 | Head | — | Massachusetts |
| 18 | James A Bailey | 40 | Son | — | Massachusetts |
| 19 | Ralph Baker | 33 | Son-in-law | Treasurer | Massachusetts |
| 20 | Dorothy Baker | 35 | Daughter | — | Massachusetts |
| 21 | Beverly J Baker | 9 | Granddaughter | — | Massachusetts |
| 22 | Everett A Davis | 40 | Head | Bookkeeper | Connecticut |
| 23 | Beatrice Davis | 39 | Wife | — | Massachusetts |
| 24 | Robert E Davis | 2 | Son | — | Massachusetts |
| 25 | Mary Bridgman | 63 | Mother-in-law | Housekeeper | England |
| 26 | Melville Francis | 59 | Head | Dentist | Maine |
| 27 | Clara Francis | 42 | Wife | — | New York |
| 28 | Martina Butler | 62 | Lodger | Salesgirl | Massachusetts |
| 29 | William Cunningham | 54 | Head | President | Massachusetts |
| 30 | Margaret Cunningham | 53 | Wife | — | Massachusetts |
| 31 | Mary Margaret Cunningham | 30 | Daughter | Investigator | Massachusetts |
| 32 | Richard Cunningham | 28 | Son | Shipper | Massachusetts |
| 33 | Barbara Cunningham | 24 | Daughter | Secretary | Massachusetts |
| 34 | William Cunningham THIS PERSON | 21 | Son | Miller | Massachusetts |
| 35 | Elizabeth Cunningham | 19 | Daughter | — | Massachusetts |
| 36 | Carl Duff | 38 | Head | Treasurer | Massachusetts |
| 37 | Mae Duff | 38 | Wife | — | New Jersey |
| 38 | Hannah Mckeon | 80 | Mother-in-law | — | New York |
| 39 | Winthrop Berry | 58 | Head | Fish Cutter | Massachusetts |
Related Census Records
Pedigree Summary
William + 4 siblings
Gen 1 · 5 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)