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Sarah Kelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Sarah Kelly across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Kelly |
| Given Name | Sarah W. |
| 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 | Tea. Stockroom |
| Industry | Public Schools |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 900 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Tea. Stockroom |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| Olive Kelly | Daughter | — | 12 | ~1928 |
| James Kelly | Son | — | 8 | ~1932 |
| Harriet Kelly | Daughter | — | 19 | ~1921 |
| Thomas Kelly | Head | — | 53 | ~1887 |
| Rose Kelly | Spouse | — | 51 | ~1889 |
| Ruth Kelly | Daughter | — | 15 | ~1925 |
| Jean Kelly | Daughter | — | 10 | ~1930 |
| Sarah Kelly | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 13
Suffolk, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Sarah |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | N. Ireland |
| Mother's Birthplace | N. 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 — 8 household members
| Surname | Kelly |
| Given Name | Sarah W. |
| 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 | Tea. Stockroom |
| Industry | Public Schools |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 900 |
| Highest Grade | C-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 Sarah Kelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sarah Kelly
Daughter · 1940 · age 24 · b. ~1916 · Massachusetts
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Sibling
Harriet Kelly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kelly
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Kelly
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Kelly
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Olive Kelly
Sibling · 1940 · age 12
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-t0627-01682-00551)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Lennon | 25 | Son | Milkman | Massachusetts |
| 42 | Joseph Lennon | 4 | Son | — | Massachusetts |
| 43 | James Lennon | 2 | Son | — | Massachusetts |
| 44 | Raymond Mckinnon | 62 | Head | Salesman | Canada Eng |
| 45 | Mary G. Mckinnon | 60 | Wife | — | Canada Eng |
| 46 | John B. Mckinnon | 32 | Son | Carpenter | Massachusetts |
| 47 | William D. Mckinnon | 27 | Son | Iron Worker | Massachusetts |
| 48 | Elaine Mckinnon | 28 | Daughter | Comptometer Op | Massachusetts |
| 49 | Ronald J. Mckinnon | 23 | Son | Electrician | Massachusetts |
| 50 | Nellie Lee | 62 | Head | — | Massachusetts |
| 51 | Mary Murphy | 74 | Lodger | — | Irish Free State |
| 52 | Thomas J. Kelly | 53 | Head | — | Massachusetts |
| 53 | Rose E. Kelly | 51 | Wife | — | Massachusetts |
| 54 | Sarah W. Kelly THIS PERSON | 24 | Daughter | Tea. Stockroom | Massachusetts |
| 55 | Harriet A. Kelly | 19 | Daughter | — | Massachusetts |
| 56 | Ruth M. Kelly | 15 | Daughter | — | Massachusetts |
| 57 | Olive T. Kelly | 12 | Daughter | — | Massachusetts |
| 58 | Jean L. Kelly | 10 | Daughter | — | Massachusetts |
| 59 | James H. Kelly | 8 | Son | — | Massachusetts |
| 60 | Joseph J. Macdonald | 47 | Head | Instructor - Physical | Massachusetts |
| 61 | Camilla Macdonald | 42 | Wife | — | Massachusetts |
| 62 | Camilla C. Macdonald | 16 | Daughter | — | Massachusetts |
| 63 | — | None | — | — | — |
| 64 | Jessie Copper | 70 | Head | — | Massachusetts |
| 65 | Anna Mckenna | 45 | Servant | Servant | Irish Free State |
| 66 | Agnes C. Chase | 73 | Cousin | — | Massachusetts |
| 67 | Ethel O'Keeve | 44 | Head | — | Massachusetts |
| 68 | Bertha Walsh | 32 | Daughter | Saleswoman | Massachusetts |
| 69 | Virginia Walsh | 12 | Granddaughter | — | Massachusetts |
| 70 | Florence Crosby | 30 | Sister | — | Massachusetts |
| 71 | Gordon Crosby | 8 | Grandson | — | Massachusetts |
| 72 | George Savoy | 50 | Brother | — | Canada-French |
| 73 | Jennie Savoy | 76 | Mother | — | Massachusetts |
| 74 | Thomas Lydon | 36 | Head | Plumber | Massachusetts |
| 75 | Martha Lydon | 37 | Wife | Hairdresser | Massachusetts |
| 76 | Sarah Lydon | 72 | Mother | — | Irish Free State |
| 77 | Catharine Mcclain | 40 | Head | — | Irish Free State |
| 78 | Joseph E. Mcclain | 11 | Son | — | Massachusetts |
| 79 | Robert J. Mcclain | 6 | Son | — | Massachusetts |
| 80 | Roy Mathews | 42 | Head | Fireman | 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)