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Catherine Kelley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Catherine Kelley across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 7-person household.
Age 74
b. ~1866
Female
Head
Born: Scotland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Kelley |
| Given Name | Catherine |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Lowell |
| Est. Birth Year | ~1866 |
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 Catherine | Age | Birth yr |
|---|---|---|---|---|
| Anna Kelley | Daughter | — | 49 | ~1891 |
| Catherine Kelley | Head | — | 74 | ~1866 |
| Mary Ashworth | Other | — | 9 | ~1931 |
| Grace Ashworth | Other | — | 40 | ~1900 |
| Elizabeth Kelley | Daughter | — | 46 | ~1894 |
| James Kelley | Son | — | 38 | ~1902 |
| James Kelley | Other | — | 15 | ~1925 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 53
Middlesex, Massachusetts · implied b. ~1867 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Catherine |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Housekeeper |
| Industry | Private Family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | scotland |
Head, age 63
Middlesex, Massachusetts · implied b. ~1867 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Catherine |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 15000 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Middlesex-County, Massachusetts
Head, age 74
Middlesex-County, Massachusetts · implied b. ~1866 — 7 household members
| Surname | Kelley |
| Given Name | Catherine |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Catherine Kelley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Catherine Kelley
Head · 1940 · age 74 · b. ~1866 · 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 — Middlesex-County, Massachusetts
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1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01691-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Constance Rogers | 49 | Sister | Salesgirl | Massachusetts |
| 42 | Mary Rowe | 72 | Mother in law | — | Massachusetts |
| 43 | Mary Cooney | 71 | Head | — | Massachusetts |
| 44 | Daniel Cooney | 50 | Lodger | Switch Board | Massachusetts |
| 45 | Mary Freeman | 53 | Head | Clerk | Massachusetts |
| 46 | Esther Freeman | 40 | Sister | Library | Massachusetts |
| 47 | Catherine Kelley THIS PERSON | 74 | Head | — | Scotland |
| 48 | Anna Kelley | 49 | Daughter | — | Massachusetts |
| 49 | Elizabeth Kelley | 46 | Daughter | Binder | Massachusetts |
| 50 | James Kelley | 38 | Son | Electrician | Massachusetts |
| 51 | James Jr Kelley | 15 | Grand Son | — | Massachusetts |
| 52 | Grace Ashworth | 40 | Lodger | Checker | Massachusetts |
| 53 | Mary Ashworth | 9 | Lodger | — | Massachusetts |
| 54 | John King | 69 | Head | Watchman | Eire |
| 55 | Delia King | 66 | Wife | — | England |
| 56 | Mary King | 35 | Daughter | Stenographer | Massachusetts |
| 57 | Helen King | 30 | Daughter | Cashier | Massachusetts |
| 58 | John King | 29 | Son | Leather Worker | Massachusetts |
| 59 | Thomas King | 25 | Son | Pressman | Massachusetts |
| 60 | Sarah Pearson | 70 | Sister in law | — | England |
| 61 | Margaret Sullivan | 80 | Head | — | Massachusetts |
| 62 | Elizabeth Sullivan | 78 | Sister | — | Massachusetts |
| 63 | Nora Sullivan | 67 | Sister | — | Massachusetts |
| 64 | Dennis Sullivan | 78 | Brother | — | Massachusetts |
| 65 | — | None | — | — | — |
| 66 | John Danahy | 40 | Head | Salesman | Massachusetts |
| 67 | Lucy Danahy | 36 | Wife | — | Massachusetts |
| 68 | John Danahy | 4 | Son | — | Massachusetts |
| 69 | Frank Pearson | 32 | Head | Chauffeur | Massachusetts |
| 70 | Ruth Pearson | 29 | Wife | — | Massachusetts |
| 71 | Clare Pearson | 2 | Daughter | — | Massachusetts |
| 72 | Mary Guerin | 63 | Head | — | Massachusetts |
| 73 | Anna Guerin | 40 | Daughter | Clerk | Massachusetts |
| 74 | Thomas Guerin | 34 | Son | Presser | Massachusetts |
| 75 | Catherine Guerin | 29 | Daughter | Teacher | Massachusetts |
| 76 | Joseph Guerin | 27 | Son | Salesman | Massachusetts |
| 77 | John Mullaney | 66 | Head | — | Eire |
| 78 | John Mullaney | 36 | Son | Salesman | Massachusetts |
| 79 | Thomas Mullaney | 24 | Son | Chauffeur | Massachusetts |
| 80 | Anne Mullaney | 26 | Daughter | — | Massachusetts |
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)