MG
Mary Gallagher — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Mary Gallagher across the 1910, 1920 and 1930 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1891), then head of a 4-person household.
Age 39
b. ~1891
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | Gallagher |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Shoe worker |
| Industry | shoe factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Shoe Worker |
| Township / Ward | City Of Salem |
| Est. Birth Year | ~1891 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Gallagher | Daughter | — | 39 | ~1891 |
| Sarah Gallagher | Daughter | — | 35 | ~1895 |
| James Gallagher | Head | — | 74 | ~1856 |
| Margaret Gallagher | Spouse | — | 69 | ~1861 |
Census Appearances
1910
Essex, Massachusetts
Daughter, age 22
Essex, Massachusetts · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Stitcher |
| Industry | Shoe shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Daughter, age 31
Essex, Massachusetts · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Stitcher |
| Industry | Shoe Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 39
Essex, Massachusetts · implied b. ~1891 — 4 household members
| Surname | Gallagher |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Shoe worker |
| Industry | shoe factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Gallagher across 3 US Census years (1910, 1920 and 1930) in Essex, Massachusetts, using XGBoost record linkage. Identified parents: father James Gallagher (~0.92 confidence) and father James Gallagher (~0.92 confidence) and father James Gallagher (~0.92 confidence) and mother Margaret Gallagher (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Gallagher
b. ~1856
Source father
● Household
· direct · ~0.92
Father
James Gallagher
b. ~1857
Source father
● Household
· direct · ~0.92
Father
James Gallagher
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Margaret Gallagher
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Gallagher
Daughter · 1930 · age 39 · b. ~1891 · Massachusetts
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Sibling
Sarah Gallagher
Sibling · 1930 · age 35
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 — Essex, Massachusetts
Open full size
1930 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel902:0980)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Louise S. Cobb | 38 | Wife | Lecturer | Maine |
| 52 | Margaret H. Cobb | 17 | Daughter | — | Maine |
| 53 | John J. Griffin | 40 | Head | Letter Carrier | Massachusetts |
| 54 | Margaret J. Griffin | 36 | Wife | — | Massachusetts |
| 55 | Priscilla Griffin | 6 | Daughter | — | Massachusetts |
| 56 | James J. Gallagher | 74 | Head | Laborer | Massachusetts |
| 57 | Margaret Gallagher | 69 | Wife | — | Massachusetts |
| 58 | Mary A. Gallagher THIS PERSON | 39 | Daughter | Shoe Worker | Massachusetts |
| 59 | Sarah L. Gallagher | 35 | Daughter | Shoe Worker | Massachusetts |
| 60 | Rose Desjardins | 50 | Head-H | Dressmaking | Canada-French |
| 61 | Edna Desjardins | 22 | Daughter | Bookkeeper | Massachusetts |
| 62 | Flora Desjardins | 20 | Daughter | Clerk | Massachusetts |
| 63 | Eugene Desjardins | 32 | Head | Shoe Worker | Massachusetts |
| 64 | Pauline Desjardins | 33 | Wife | — | Massachusetts |
| 65 | Pauline Desjardins | 9 | Daughter | — | Massachusetts |
| 66 | Jeanne Desjardins | 4 | Daughter | — | Massachusetts |
| 67 | Jacqueline Desjardins | 1 | Daughter | — | Massachusetts |
| 68 | Blanche Thasing | 28 | Head-H | Shoe Worker | Massachusetts |
| 69 | Robert Thasing | 1 | Son | — | Massachusetts |
| 70 | Richard Cruise | 38 | Head | Foreman | Irish Free State |
| 71 | Theresa M. Cruise | 37 | Wife | — | Irish Free State |
| 72 | Richard Jr. Cruise | 13 | Son | — | Massachusetts |
| 73 | Mary J. Cruise | 6 | Daughter | — | Massachusetts |
| 74 | Loretta Bacconi | 55 | Head | Contractor | Italy |
| 75 | Carmilla Bacconi | 46 | Wife | — | Italy |
| 76 | Angelina Bacconi | 23 | Daughter | Factory Hand | Massachusetts |
| 77 | Carlo Bacconi | 19 | Son | Apprentice | Massachusetts |
| 78 | Nichola Bacconi | 16 | Son | — | Massachusetts |
| 79 | Mary Bacconi | 14 | Daughter | — | Massachusetts |
| 80 | Victor Bacconi | 11 | Son | — | Massachusetts |
| 81 | Emma Bacconi | 8 | Daughter | — | Massachusetts |
| 82 | Pasquena Bacconi | 6 | Daughter | — | Massachusetts |
| 83 | Nancy Bacconi | 3 | Daughter | — | Massachusetts |
| 84 | Harold J. Peterson | 34 | Head | Machinist | Massachusetts |
| 85 | Bessie J. Peterson | 28 | Wife | Waitress | Maine |
| 86 | Earl A. Peterson | 6 | Son | — | Massachusetts |
| 87 | Omer A. Keller | 17 | brother-in-law | Helper | Maine |
| 88 | Frank S. O'Connell | 32 | Head | Druggist | Massachusetts |
| 89 | Theresa M. O'Connell | 29 | Wife | — | Massachusetts |
| 90 | Margaret O'Connell | 0 | Daughter | — | Massachusetts |
| 91 | Frank O'Connell | 6 | Son | — | Massachusetts |
| 92 | James L. Millard | 41 | Head | Conductor | Massachusetts |
| 93 | Alice Millard | 42 | Wife | — | Massachusetts |
| 94 | Richard Millard | 11 | Son | — | Massachusetts |
| 95 | Ruth Millard | 7 | Daughter | — | Massachusetts |
| 96 | Mary A. Green | 63 | Head-H | — | Massachusetts |
| 97 | Maud E. Green | 31 | daughter | Shoe Worker | Massachusetts |
| 98 | John H. Sheridan | 60 | Head | Agent | Massachusetts |
| 99 | Alice G. Sheridan | 22 | Daughter | Stenographer | Massachusetts |
| 100 | Frank J. Mazzei | 39 | Head | Inspector | Massachusetts |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)