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Margaret Gallagher — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Margaret Gallagher across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Gallagher |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Housegirl |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 4 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Housegirl |
| Township / Ward | Lawrence City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Ann Gallagher | Daughter | — | 9 | ~1931 |
| Margaret Gallagher | Daughter | — | 18 | ~1922 |
| Agnes Gallagher | Daughter | — | 3 | ~1937 |
| William Gallagher | Head | — | 45 | ~1895 |
| John Gallagher | Son | — | 8 | ~1932 |
| George Gallagher | Son | — | 16 | ~1924 |
| William Gallagher | Son | — | 21 | ~1919 |
| Robert Gallagher | Son | — | 11 | ~1929 |
| Lawrence Gallagher | Son | — | 14 | ~1926 |
| Agnes Gallagher | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Essex, Massachusetts
Daughter, age 8
Essex, Massachusetts · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 18
Essex-County, Massachusetts · implied b. ~1922 — 10 household members
| Surname | Gallagher |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Occupation | Housegirl |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 4 |
| Highest Grade | H-2 |
| 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 Margaret Gallagher across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Gallagher
Daughter · 1940 · age 18 · b. ~1922 · Massachusetts
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Sibling
Lawrence Gallagher
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Gallagher
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gallagher
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Gallagher
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Gallagher
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gallagher
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Gallagher
Sibling · 1940 · age 16
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01583-00319)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sam, Jr. Sparta | 26 | Head | Bakery Salesman | Massachusetts |
| 2 | Dorothy Sparta | 22 | Wife | — | Massachusetts |
| 3 | Sam, Iii Sparta | 1 | Son | — | Massachusetts |
| 4 | Paul E. Sparta | 0 | Son | — | Massachusetts |
| 5 | Herbert Adams | 57 | Head | Laborer | Maine |
| 6 | Henry J. @ Blackwell | 45 | Lodger | Laborer | Massachusetts |
| 7 | Mary Carroll | 74 | Head | — | New York |
| 8 | Helen Carroll | 47 | Daughter | Mender | Massachusetts |
| 9 | Louis St. Cyr | 39 | Son in-law | Frame Tender | Massachusetts |
| 10 | Mary St. Cyr | 37 | Daughter | Web Drawer | Massachusetts |
| 11 | Augustine St. Cyr | 18 | Grandson | — | Massachusetts |
| 12 | William H. Gallagher | 45 | Head | Superintendent | Massachusetts |
| 13 | Agnes G. @ Gallagher | 46 | Wife | — | Massachusetts |
| 14 | William H., Jr. Gallagher | 21 | Son | Truck Driver | Massachusetts |
| 15 | Margaret Gallagher THIS PERSON | 18 | Daughter | Housegirl | Massachusetts |
| 16 | George Gallagher | 16 | Son | — | Massachusetts |
| 17 | Lawrence Gallagher | 14 | Son | — | Massachusetts |
| 18 | Robert Gallagher | 11 | Son | — | Massachusetts |
| 19 | Ann Gallagher | 9 | Daughter | — | Massachusetts |
| 20 | John Gallagher | 8 | Son | — | Massachusetts |
| 21 | Agnes Gallagher | 3 | Daughter | — | Massachusetts |
| 22 | — | None | — | — | — |
| 23 | Edward J. O'Connor | 32 | Head | Salesman | New York |
| 24 | Edward O'Connor | 5 | Son | — | Massachusetts |
| 25 | Mary B. Knighton | 34 | Head | Public Health Nurse | Massachusetts |
| 26 | Rosetta Knighton | 36 | Sister | Stenographer | Massachusetts |
| 27 | Peter J. Whinn | 55 | Head | Core Maker | Massachusetts |
| 28 | Emma Whinn | 55 | Wife | — | Massachusetts |
| 29 | Eileen Whinn | 22 | Daughter | Burler | Massachusetts |
| 30 | George Whinn | 20 | Son | Mill Operative | Massachusetts |
| 31 | John Whinn | 18 | Son | Waste Sorter | Massachusetts |
| 32 | Vincent Plegola | 26 | Head | Gill Hand | Massachusetts |
| 33 | Stacia Plegola | 26 | Wife | Comb Cutter | Massachusetts |
| 34 | Margaret Murphy | 52 | Head | — | Massachusetts |
| 35 | Helen Murphy | 49 | Sister | Seamstress | Massachusetts |
| 36 | Timothy Murphy | 45 | Brother | Laborer | Massachusetts |
| 37 | Paul J. Golden | 35 | Head | Section Hand | Massachusetts |
| 38 | Leola Golden | 40 | Wife | Mender | Maine |
| 39 | Alice Jane Golden | 11 | Daughter | — | Massachusetts |
| 40 | William Golden | 8 | Son | — | 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)