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Katherine Kelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Katherine Kelly across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1894), then head of a 7-person household.
Age 46
b. ~1894
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Kelly |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | School Teacher |
| Industry | Elementary |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 2304 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Teacher |
| Township / Ward | Boston |
| Est. Birth Year | ~1894 |
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 Katherine | Age | Birth yr |
|---|---|---|---|---|
| John Kelly | Son | — | 48 | ~1892 |
| Lillian Kelly | Other | — | 43 | ~1897 |
| Arthur Kelly | Son | — | 41 | ~1899 |
| Josephine Kelly | Daughter | — | 51 | ~1889 |
| Katherine Kelly | Daughter | — | 46 | ~1894 |
| Ann Kelly | Daughter | — | 50 | ~1890 |
| Johannah Kelly | Head | — | 81 | ~1859 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 35
Suffolk, Massachusetts · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Katherine |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 32 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 46
Suffolk-County, Massachusetts · implied b. ~1894 — 7 household members
| Surname | Kelly |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | School Teacher |
| Industry | Elementary |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 2304 |
| Highest Grade | C 2 |
| 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 Katherine Kelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Katherine Kelly
Daughter · 1940 · age 46 · b. ~1894 · Massachusetts
★ You are viewing this record
Sibling
Ann Kelly
Sibling · 1940 · age 50
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Kelly
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Kelly
Sibling · 1940 · age 51
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kelly
Sibling · 1940 · age 48
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-t0627-01676-00261)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Donahoe | 24 | Son | Laborer | Massachusetts |
| 2 | Thomas Henderson | 78 | Head | — | Vermont |
| 3 | Mary E. Pendergast | 54 | Housekeeper | Housekeeper | Massachusetts |
| 4 | Harry B. Huntwork | 41 | Lodger | Salesman | Massachusetts |
| 5 | Blanchetta Huntwork | 52 | Lodger | — | Massachusetts |
| 6 | Johannah Kelly | 81 | Head | — | Massachusetts |
| 7 | Josephine Kelly | 51 | Daughter | School Teacher | Massachusetts |
| 8 | Ann M. Kelly | 50 | Daughter | Musician | Massachusetts |
| 9 | John J. Kelly | 48 | Son | Engineer | Massachusetts |
| 10 | Katherine Kelly THIS PERSON | 46 | Daughter | School Teacher | Massachusetts |
| 11 | Arthur W. Kelly | 41 | Son | Painter | Massachusetts |
| 12 | Lillian B. Kelly | 43 | Daughter in law | Telephone Operator | Massachusetts |
| 13 | Matilda Hall | 64 | Head | — | Massachusetts |
| 14 | Dora Whitney | 61 | Sister | — | Massachusetts |
| 15 | Ralph Quigley | 44 | Head | Manager | Massachusetts |
| 16 | Marie E. Quigley | 43 | Wife | — | Canada French |
| 17 | Oscar Lomasney | 57 | Head | Assessor | Massachusetts |
| 18 | Mary E. Lomasney | 55 | Wife | — | Massachusetts |
| 19 | Anna Lomasney | 30 | Daughter | Physical Inst. | Massachusetts |
| 20 | Edward Lomasney | 22 | Son | Stock Clerk | Massachusetts |
| 21 | George J. Lomasney | 28 | Son | Draftsman | Massachusetts |
| 22 | Lillian Griffin | 44 | Head | — | Canada Eng. |
| 23 | Lillian Griffin | 21 | Daughter | New Worker | Massachusetts |
| 24 | Daniel Griffin | 19 | Son | New Worker | Massachusetts |
| 25 | Mary Griffin | 17 | Daughter | — | Massachusetts |
| 26 | Katherine Hagerty | 90 | Head | — | Eire |
| 27 | Peter A. Hagerty | 64 | Son | Superintendent | Massachusetts |
| 28 | Mary E. Hagerty | 60 | Daughter | Bookkeeper | Massachusetts |
| 29 | Francis P. Hagerty | 58 | Son | Captain | Massachusetts |
| 30 | Agnes T. Hagerty | 48 | Daughter | Secretary | Massachusetts |
| 31 | Sarah Keefe | 62 | Head | — | Ireland |
| 32 | Catherine Keefe | 33 | Daughter | School Teacher | Massachusetts |
| 33 | Sarah A. Keefe | 30 | Daughter | School Teacher | Massachusetts |
| 34 | Margaret Keefe | 28 | Daughter | School Teacher | Massachusetts |
| 35 | Eleanor Keefe | 26 | Daughter | School Teacher | Massachusetts |
| 36 | Francis A. Keefe | 24 | Daughter | School Teacher | Massachusetts |
| 37 | Charles Cumming | 69 | Head | Salesman | Massachusetts |
| 38 | Gertrude Cumming | 69 | Wife | — | Massachusetts |
| 39 | Curtis Cumming | 29 | Son | Engineer | New York |
| 40 | Oliver J. Roberge | 29 | Lodger | Buyer | Connecticut |
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)