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Mary Mccullough — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Mccullough across the 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 7-person household.
Age 14
b. ~1916
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McCullough |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lowell 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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Mccullough | Son | — | 11 | ~1919 |
| Catherine Mccullough | Daughter | — | 8 | ~1922 |
| Margaret Mccullough | Daughter | — | 12 | ~1918 |
| Julia Mccullough | Spouse | — | 42 | ~1888 |
| John Mccullough | Head | — | 44 | ~1886 |
| Mary Mccullough | Daughter | — | 14 | ~1916 |
| Josephine Mccullough | Daughter | — | 5 | ~1925 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 14
Middlesex, Massachusetts · implied b. ~1916 — 7 household members
| Surname | McCullough |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 25
Middlesex-County, Massachusetts · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCullough |
| Given Name | Marjorie F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Manchester |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 240 |
| Highest Grade | Hs 4 |
| 1935 Residence | New Hampshire |
| 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 Mccullough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccullough
Daughter · 1930 · age 14 · b. ~1916 · Massachusetts
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Sibling
William Mccullough
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccullough
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mccullough
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Mccullough
Sibling · 1930 · 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
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
49 people indexed on this census page (ia:1930:massachusettscensus00reel927:1069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Albert Youden | 36 | Head | Auto Mechanic | Canada English |
| 3 | Alice Youden | 33 | Wife | — | Canada English |
| 4 | Clayton Youden | 5 | Son | — | Massachusetts |
| 5 | Anne Youden | 3 | Daughter | — | Massachusetts |
| 6 | Hazel Skinner | 22 | Boarder | Pay Clerk | Canada English |
| 7 | John Miller | 22 | Boarder | Shipper | Canada English |
| 8 | John Mooney | 43 | Head | Manager | Irish Free State |
| 9 | Julia Mooney | 40 | Wife | — | Irish Free State |
| 10 | Mary H. Mooney | 8 | Daughter | — | Massachusetts |
| 11 | Anne R. Mooney | 6 | Daughter | — | Massachusetts |
| 12 | John F. Mooney | 4 | Son | — | Massachusetts |
| 13 | Martin J. Mooney | 1 | Son | — | Massachusetts |
| 14 | Frank Rooney | 43 | Head | Steward | Irish Free State |
| 15 | Mary Rooney | 43 | Wife | — | Irish Free State |
| 16 | Mary Rooney | 12 | Daughter | — | Massachusetts |
| 17 | Anne Rooney | 4 | Daughter | — | Massachusetts |
| 18 | Anna Smith | 35 | Head | — | Massachusetts |
| 19 | Nellie Terlahy | 55 | Mother | — | New Hampshire |
| 20 | James Dooley | 27 | Brother | Baggage Master | Massachusetts |
| 21 | David J. O'Connor | 38 | Head | Fire Fighter | Massachusetts |
| 22 | Mary O'Connor | 38 | Wife | — | Irish Free State |
| 23 | Thomas Hayes | 40 | Brother-in-law | Laborer | Irish Free State |
| 24 | John W. Mccullough | 44 | Head | Laborer | Irish Free State |
| 25 | Julia Mccullough | 42 | Wife | — | Irish Free State |
| 26 | Mary E. Mccullough THIS PERSON | 14 | Daughter | — | Massachusetts |
| 27 | Margaret Mccullough | 12 | Daughter | — | Massachusetts |
| 28 | William Mccullough | 11 | Son | — | Massachusetts |
| 29 | Catherine Mccullough | 8 | Daughter | — | Massachusetts |
| 30 | Josephine Mccullough | 5 | Daughter | — | Massachusetts |
| 31 | John Sullivan | 50 | Head | Houseman | Irish Free State |
| 32 | Hannah Sullivan | 48 | Wife | — | Irish Free State |
| 33 | Charles Campion | 45 | Head | Roofer | Canada English |
| 34 | Alice Campion | 45 | Wife | — | Canada English |
| 35 | William Campion | 20 | Son | Roofer | Canada English |
| 36 | Cecil Campion | 12 | Son | — | Canada English |
| 37 | Daniel Coakley | 31 | Head | Fireman | Massachusetts |
| 38 | Grace Coakley | 31 | Wife | — | Massachusetts |
| 39 | Marion Coakley | 1 | Daughter | — | Massachusetts |
| 40 | Joanne Coakley | 0 | Daughter | — | Massachusetts |
| 41 | John Walsh | 31 | Boarder | Chauffeur | Massachusetts |
| 42 | Aaron Polikoff | 52 | Head | Tailor | Russia |
| 43 | Fannie Polikoff | 54 | Wife | — | Russia |
| 44 | Lillian Polikoff | 25 | Daughter | — | Massachusetts |
| 45 | Rebecca Polikoff | 24 | Daughter | Bookkeeper | Russia |
| 46 | Esther Polikoff | 22 | Daughter | Packer | Russia |
| 47 | Benjamin Polikoff | 20 | Son | Salesman | Russia |
| 48 | Benjamin Edelstein | 32 | Boarder | Establishment | Russia |
| 49 | Sarah Edelstein | 30 | Daughter | Saleslady | Russia |
| 50 | Irving Edelstein | 11 | Son | — | 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)