MC
Mary Cunningham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Cunningham across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 10-person household.
Age 24
b. ~1916
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Cunningham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Packer |
| Industry | Candy Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Packer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lillian Cunningham | Daughter | — | 14 | ~1926 |
| Catherine Cunningham | Daughter | — | 22 | ~1918 |
| Rita Cunningham | Daughter | — | 17 | ~1923 |
| Mary Cunningham | Daughter | — | 24 | ~1916 |
| Thomas Cunningham | Head | — | 50 | ~1890 |
| Agnes Brown | Other | — | 69 | ~1871 |
| Thomas Cunningham | Son | — | 21 | ~1919 |
| Francis Cunningham | Son | — | 19 | ~1921 |
| Edward Cunningham | Son | — | 12 | ~1928 |
| Mary Cunningham | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 14
Suffolk, Massachusetts · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 24
Suffolk-County, Massachusetts · implied b. ~1916 — 10 household members
| Surname | Cunningham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Packer |
| Industry | Candy Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 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 Mary Cunningham across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cunningham
Daughter · 1940 · age 24 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
Francis Cunningham
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Cunningham
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Cunningham
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Cunningham
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Cunningham
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Cunningham
Sibling · 1940 · age 21
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-t0627-01668-00283)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Albert J. Collin | 48 | Head | Painter | Canada French |
| 42 | Evelyn G. Collin | 48 | Wife | — | Connecticut |
| 43 | Leo A. Collin | 22 | Son | Barber | Connecticut |
| 44 | William A. Kramer | 37 | Head | Handyman | Germany |
| 45 | Elizabeth Kramer | 32 | Wife | — | Illinois |
| 46 | George J. Kramer | 4 | Son | — | Massachusetts |
| 47 | Marjorie Kramer | 1 | Daughter | — | Massachusetts |
| 48 | Ernest W. Anderson | 54 | Head | Manager | Maine |
| 49 | Pauline F. Anderson | 38 | Wife | — | Ohio |
| 50 | Nicholas J. Morris | 52 | Head | Custodian | Eire State |
| 51 | Mary J. Morris | 53 | Wife | — | Eire State |
| 52 | Rita Morris | 19 | Daughter | — | Massachusetts |
| 53 | Mary C. Morris | 18 | Daughter | Waitress | Massachusetts |
| 54 | Julia T. Morris | 13 | Daughter | — | Massachusetts |
| 55 | Joan P. Morris | 10 | Daughter | — | Massachusetts |
| 56 | William F. Mcmanus | 31 | Head | Plumbing | Massachusetts |
| 57 | Mary O. Mcmanus | 30 | Wife | — | Massachusetts |
| 58 | Samuel Kennedy | 63 | Head | Painter | Canada English |
| 59 | Alice Kennedy | 58 | Wife | — | Eire State |
| 60 | Robert Nichols | 34 | Head | Clerk | Massachusetts |
| 61 | Elizabeth Nichols | 31 | Wife | — | Massachusetts |
| 62 | Eunice Nichols | 5 | Daughter | — | Massachusetts |
| 63 | Robert Nichols | 2 | Daughter | — | Massachusetts |
| 64 | Paul Nichols | 1 | Son | — | Massachusetts |
| 65 | Martin Glennon | 61 | Head | Tenant Farmer | Massachusetts |
| 66 | Ellen Glennon | 54 | Wife | Sewing | Eire State |
| 67 | Margaret Barrett | 76 | Head | — | Massachusetts |
| 68 | Ellen Barrett | 71 | Sister | — | Massachusetts |
| 69 | Elizabeth Barrett | 62 | Sister | Matron | Massachusetts |
| 70 | Catherine Barrett | 57 | Sister | — | Massachusetts |
| 71 | Thomas J. Cunningham | 50 | Head | Foreman | Massachusetts |
| 72 | Mary Cunningham | 49 | Wife | — | Eire State |
| 73 | Mary Cunningham THIS PERSON | 24 | Daughter | Packer | Massachusetts |
| 74 | Catherine Cunningham | 22 | Daughter | Filing | Massachusetts |
| 75 | Thomas Cunningham | 21 | Son | Receiver | Massachusetts |
| 76 | Francis Cunningham | 19 | Son | Filing | Massachusetts |
| 77 | Rita Cunningham | 17 | Daughter | — | Massachusetts |
| 78 | Lillian Cunningham | 14 | Daughter | — | Massachusetts |
| 79 | Edward Cunningham | 12 | Son | — | Massachusetts |
| 80 | Agnes Brown | 69 | Sister | — | Eire State |
Related Census Records
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)