MC
Mary Carney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Carney across the 1900, 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 2-person household.
Age 66
b. ~1864
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1884 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3750 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | City Of Medford |
| Est. Birth Year | ~1864 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Carney | Daughter | — | 20 | ~1910 |
| Mary Carney | Head | — | 66 | ~1864 |
Census Appearances
1900
Middlesex, Massachusetts
Other, age 36
Middlesex, Massachusetts · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corney |
| Given Name | Mary |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Ireland |
| Birth Month | July |
| Birth Year | 1864 |
| Year of Immigration | 1880 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Dressmaker |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Other, age 45
Middlesex, Massachusetts · implied b. ~1865 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Aunt |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Other, age 57
Middlesex, Massachusetts · implied b. ~1863 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Year of Naturalization | 1887 |
| Birthplace (normalized) | ireland |
1930
Middlesex, Massachusetts
Head, age 66
Middlesex, Massachusetts · implied b. ~1864 — 2 household members
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1884 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3750 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Carney across 4 US Census years (1900, 1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Mary Carney
Head · 1930 · age 66 · b. ~1864 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel924:0635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Timmins | 70 | Head | Seamstress | Ireland |
| 2 | John H. Timmins | 60 | Brother | Blacksmith | Massachusetts |
| 3 | Francis J. Horton | 37 | Head | Deck Hand | Massachusetts |
| 4 | Madlyn F. Horton | 32 | Wife | — | Massachusetts |
| 5 | Arline M. Horton | 10 | Daughter | — | Maine |
| 6 | Mary Carney THIS PERSON | 66 | Head | — | Ireland |
| 7 | Helen Carney | 20 | Daughter | Clerk | Massachusetts |
| 8 | Arthur G. Emery | 34 | Head | Salesman | New Hampshire |
| 9 | Ann F. Emery | 27 | Wife | — | Massachusetts |
| 10 | Arthur G. Emery | 4 | Son | None | Massachusetts |
| 11 | Ann V. Emery | 2 | Daughter | None | Massachusetts |
| 12 | D. Charles Noone | 32 | Head | Supt. | Massachusetts |
| 13 | Mary Noone | 30 | Wife | — | Massachusetts |
| 14 | Charles M. Howard | 25 | Lodger | Bricklayer | Massachusetts |
| 15 | Lillian A. Hodge | 16 | daughter | — | Massachusetts |
| 16 | Edward M. Mcdonough | 39 | Head | Asst Director | Massachusetts |
| 17 | Isabelle F. Mcdonough | 32 | Wife | — | Massachusetts |
| 18 | John O. Dale | 52 | Head | Mechanic | Canada English |
| 19 | Annie E. Dale | 49 | Wife | — | Ireland |
| 20 | Anna F. Dale | 25 | Daughter | Stenographer | Massachusetts |
| 21 | Dorothy M. Dale | 24 | Daughter | Stenographer | Massachusetts |
| 22 | Lillian C. Dale | 17 | Daughter | — | Massachusetts |
| 23 | John F. Harrington | 62 | Head | Clerk | Massachusetts |
| 24 | Emma L. Harrington | 55 | Wife | — | Massachusetts |
| 25 | Grace C. Harrington | 30 | daughter | Stenographer | Massachusetts |
| 26 | Arthur U. Harrington | 28 | son | Salesman | Massachusetts |
| 27 | George D. Tucker | 58 | Head | Supervisor | Massachusetts |
| 28 | Adela S. Tucker | 60 | Wife | — | Pennsylvania |
| 29 | Gertrude Samson | 48 | Sister | — | Massachusetts |
| 30 | Horace E. Brockley | 34 | Head | Foreman | Massachusetts |
| 31 | Marion E. Brockley | 33 | Wife | — | Vermont |
| 32 | Daniel Connors | 61 | Head | Japanner | Massachusetts |
| 33 | Loretta J. Connors | 58 | Wife | None | Massachusetts |
| 34 | Doris J. Connors | 27 | daughter | Secretary | Massachusetts |
| 35 | Louis E. Gowan | 48 | Head | Foreman | Massachusetts |
| 36 | Emily A. Gowan | 36 | Wife | — | Massachusetts |
| 37 | Frank L. Gowan | 18 | son | — | Massachusetts |
| 38 | Louis E. Gowan | 15 | son | — | New York |
| 39 | Ruth E. Gowan | 12 | daughter | — | Massachusetts |
| 40 | John H. Griffin | 39 | Head | Operator | Massachusetts |
| 41 | Mary E. Griffin | 27 | Wife | — | Massachusetts |
| 42 | Mary Griffin | 8 | daughter | — | Massachusetts |
| 43 | John H. Jr. Griffin | 7 | son | — | Massachusetts |
| 44 | Joseph Griffin | 5 | son | None | Massachusetts |
| 45 | John T. Casserly | 55 | Head | Clerk | Massachusetts |
| 46 | Gertrude S. Casserly | 44 | Wife | — | Massachusetts |
| 47 | Charles A. Casserly | 19 | Son | — | Massachusetts |
| 48 | John C. Golden | 45 | Head | Machinist | Massachusetts |
| 49 | Marion C. Golden | 43 | Wife | — | Massachusetts |
| 50 | Annie Hodge | 53 | Head | Knitter | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)