MK
Mary Kenny — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Kenny across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Kenny |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ann Kenny | Daughter | — | 5 | ~1935 |
| Edward Kenny | Son | — | 18 | ~1922 |
| Helen Kenny | Daughter | — | 24 | ~1916 |
| Edward Kenny | Head | — | 46 | ~1894 |
| Mary Kenny | Spouse | — | 46 | ~1894 |
| John Kenny | Son | — | 8 | ~1932 |
| Mary Kenny | Daughter | — | 22 | ~1918 |
Census Appearances
Daughter, age 12
Suffolk, Massachusetts · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kenney |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| 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
Daughter, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 7 household members
| Surname | Kenny |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H 4 |
| 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 Mary Kenny across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kenny
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Edward Kenny
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kenny
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Kenny
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Kenny
Sibling · 1940 · age 5
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-t0627-01680-00086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary A. Howard | 79 | Head | — | Massachusetts |
| 2 | Mary J. G. Howard | 53 | Daughter | Stenog | Massachusetts |
| 3 | James H. Howard | 49 | Son | Installer | Massachusetts |
| 4 | Stephen C. Howard | 47 | Son | Title Clerk | Massachusetts |
| 5 | Ann L. Howard | 51 | Daughter-in-law | — | Massachusetts |
| 6 | Ann H. Howard | 10 | Granddaughter | — | Massachusetts |
| 7 | Mary E. Kennedy | 58 | Head | Author | Massachusetts |
| 8 | Alice F. Kennedy | 57 | Sister | Clerk | Massachusetts |
| 9 | Mary Kennedy | 86 | Mother | Letter Carrier | Massachusetts |
| 10 | Willington S. Sowyer | 49 | Head | Engineer | Maine |
| 11 | Edith M. Sowyer | 47 | Wife | — | Maine |
| 12 | Edna Sowyer | 28 | Daughter | Secretary | Maine |
| 13 | Merrill S. Sowyer | 20 | Son | — | Maine |
| 14 | Sherman Sowyer | 12 | Son | Plan Division | Massachusetts |
| 15 | Willington Jr. Sowyer | 8 | Son | — | Massachusetts |
| 16 | Paul Kimball | 47 | Head | Foreman | Massachusetts |
| 17 | Helen Kimball | 46 | Wife | — | Massachusetts |
| 18 | Richard Kimball | 10 | Son | — | Massachusetts |
| 19 | Paul Jr. Kimball | 7 | Son | — | Massachusetts |
| 20 | John Kimball | 1 | Son | — | Massachusetts |
| 21 | Mary F. Mcnichols | 72 | Mother-in-law | — | Ireland |
| 22 | Edward J. Kenny | 46 | Head | Salesman | Massachusetts |
| 23 | Mary V. Kenny | 46 | Wife | — | Pennsylvania |
| 24 | Helen Kenny | 24 | Daughter | — | Massachusetts |
| 25 | Mary Kenny THIS PERSON | 22 | Daughter | — | Massachusetts |
| 26 | Edward Kenny | 18 | Son | — | Massachusetts |
| 27 | John Kenny | 8 | Son | — | Massachusetts |
| 28 | Ann Kenny | 5 | Daughter | — | Massachusetts |
| 29 | Annie Ballantyne | 74 | Head | — | Scotland |
| 30 | Alice S. Ballantyne | 41 | Daughter | — | Massachusetts |
| 31 | Bernard J. Carney | 60 | Head | Officer | Ireland |
| 32 | Rose F. Carney | 57 | Wife | — | Ireland |
| 33 | Frances J. Carney | 26 | Daughter | Saleslady | Massachusetts |
| 34 | James J. Carney | 19 | Son | New Writer | Massachusetts |
| 35 | Mildred Carney | 20 | Daughter | — | Massachusetts |
| 36 | John L. Carney | 12 | Son | — | Massachusetts |
| 37 | Patricia Cingue | 20 | Lodger | Cashier | Massachusetts |
| 38 | Mary F. Colony | 5 | Niece | — | Massachusetts |
| 39 | Alfred Smart | 82 | Head | — | England |
| 40 | Eliza E. Davies | 67 | Housekeeper | Housekeeper | England |
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)