MC
Mary Cunningham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Cunningham across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 2-person household.
Age 57
b. ~1883
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Cunningham |
| Given Name | Mary D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Worcester |
| Est. Birth Year | ~1883 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cunningham | Daughter | — | 33 | ~1907 |
| Mary Cunningham | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Worcester, Massachusetts
Spouse, age 37
Worcester, Massachusetts · implied b. ~1883 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1904 |
| Birthplace (normalized) | sweden |
1930
Worcester, Massachusetts
Spouse, age 47
Worcester, Massachusetts · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Mary J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1892 |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Worcester-County, Massachusetts
Spouse, age 57
Worcester-County, Massachusetts · implied b. ~1883 — 2 household members
| Surname | Cunningham |
| Given Name | Mary D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Mary Cunningham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cunningham
Spouse · 1940 · age 57 · b. ~1883 · 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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01719-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary D. Cunningham THIS PERSON | 57 | Wife | — | Sweden |
| 42 | Mary L. Cunningham | 33 | Daughter | File Clerk | Massachusetts |
| 43 | William S. Burnham | 72 | Head | Stock Clerk | Connecticut |
| 44 | Mary L. Burnham | 68 | Wife | — | Massachusetts |
| 45 | Laura M. Burnham | 39 | Daughter | Stenographer | Massachusetts |
| 47 | Margaret Smith | 71 | Head | — | New Hampshire |
| 48 | Mary J. Leary | 71 | Head | — | Connecticut |
| 49 | Rose Benson | 48 | Daughter | Saleswoman | Massachusetts |
| 50 | Jacob Kramer | 65 | Head | — | Germany |
| 51 | Benjamin Kramer | 37 | Son | Chauffeur | Massachusetts |
| 52 | Elizabeth Friedman | 49 | Head | Saleswoman | Massachusetts |
| 53 | Marvin Friedman | 21 | Son | Salesman | Massachusetts |
| 54 | Thea Friedman | 18 | Daughter | Saleswoman | Massachusetts |
| 55 | Ruth Friedman | 16 | Daughter | — | Massachusetts |
| 56 | Helen Friedman | 14 | Daughter | — | Massachusetts |
| 57 | Norman Friedman | 11 | Son | — | Massachusetts |
| 58 | J. Arthur Harrell | 71 | Head | House Painter | Canada English |
| 59 | Annie M. Harrell | 69 | Wife | — | Maine |
| 60 | Roy Anderson | 28 | Head | Plumber | Massachusetts |
| 61 | Gladys Anderson | 29 | Wife | — | Massachusetts |
| 62 | Cora Mansfield | 78 | Head | — | Massachusetts |
| 63 | Florence Mansfield | 56 | Daughter | Bookkeeper | Massachusetts |
| 64 | Fred E. Lampkin | 65 | Head | Street Car Operator | Vermont |
| 65 | Elsie Lampkin | 67 | Wife | — | New Hampshire |
| 66 | Le Roy H. Clark | 64 | Head | Steam Engineer | Massachusetts |
| 67 | Agnes E. Clark | 52 | Wife | — | Massachusetts |
| 68 | Elmer F. Clark | 27 | Son | Tree Surgeon | Massachusetts |
| 69 | Beatrice Clark | 17 | Daughter | — | Massachusetts |
| 70 | John Mulvehill | 34 | Head | Iron Worker | Massachusetts |
| 71 | Delora Mulvehill | 32 | Wife | Bench Worker | Massachusetts |
| 72 | Joan Mulvehill | 1 | Daughter | — | Massachusetts |
| 73 | Charles J. Fitzpatrick | 26 | Head | Bartender | Massachusetts |
| 74 | Carolyn Fitzpatrick | 26 | Wife | — | Massachusetts |
| 75 | Brenda Fitzpatrick | 0 | Daughter | — | Massachusetts |
| 76 | Cora B. Nelson | 69 | Mother-in-law | — | Massachusetts |
| 77 | Theodore Du Varney | 34 | Head | Laundry Supt. | Massachusetts |
| 78 | Laura S. Du Varney | 24 | Wife | — | Massachusetts |
| 79 | Theodore L. Du Varney | 2 | Son | — | Massachusetts |
| 80 | Uranio Caranchini | 26 | Lodger | Carpenter Helper | Vermont |
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)