TG
Thomas Gallagher — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Thomas Gallagher across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Patrick — first a head (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Gallagher |
| Given Name | Thomas W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Printer |
| Industry | Printing Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2200 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Printer |
| Township / Ward | East Chelmsford |
| Est. Birth Year | ~1907 |
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 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Laura Gallagher | Spouse | — | 32 | ~1908 |
| Gerald Gallagher | Son | — | 5 | ~1935 |
| Thomas Gallagher | Son | — | 2 | ~1938 |
| Thomas Gallagher | Head | — | 33 | ~1907 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 13
Middlesex, Massachusetts · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 24
Middlesex, Massachusetts · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | usher |
| Industry | theater |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 33
Middlesex-County, Massachusetts · implied b. ~1907 — 4 household members
| Surname | Gallagher |
| Given Name | Thomas W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Occupation | Printer |
| Industry | Printing Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2200 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| 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 Thomas Gallagher across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Gallagher (~0.92 confidence) and father Patrick Gallagher (~0.92 confidence) and mother Sarah Gallagher (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Gallagher
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Patrick Gallagher
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Sarah Gallagher
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Gallagher
Head · 1940 · age 33 · b. ~1907 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01603-00800)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | D. Ann Barlow | 6 | Daughter | — | Massachusetts |
| 2 | Thomas W. Gallagher THIS PERSON | 33 | Head | Printer | Massachusetts |
| 3 | Laura S. Gallagher | 32 | Wife | — | New Hampshire |
| 4 | Gerald T. Gallagher | 5 | Son | — | Massachusetts |
| 5 | Thomas W. Jr. Gallagher | 2 | Son | — | Massachusetts |
| 6 | Arthur G. Appin | 39 | Head | Truck Driver | Massachusetts |
| 7 | Ruth S. Appin | 37 | Wife | Salesgirl | Massachusetts |
| 8 | Everett A. Appin | 18 | Son | — | Massachusetts |
| 9 | Ronald E. Appin | 15 | Son | — | Massachusetts |
| 10 | Agnes M. Nix | 75 | Mother-in-law | — | England |
| 11 | Earl J. Watt | 27 | Head | Teacher | Massachusetts |
| 12 | Clara W. Watt | 26 | Wife | — | Massachusetts |
| 13 | Claire E. Watt | 0 | Daughter | — | Massachusetts |
| 14 | Velma S. Hildreth | 80 | Head | — | Massachusetts |
| 15 | Frederick A. Mcmaster | 72 | Head | Wood Worker | Massachusetts |
| 16 | Lillian E. Mcmaster | 62 | Wife | — | Massachusetts |
| 17 | Proctor P. Wilson | 44 | Head | Teacher | Massachusetts |
| 18 | Olga E. Wilson | 43 | Wife | — | Rhode Island |
| 19 | Alton F. Rich | 46 | Head | Overseer | Massachusetts |
| 20 | Sarah I. Rich | 48 | Wife | — | Canada-English |
| 21 | Lillian G. Rich | 22 | Daughter | Secretary | Massachusetts |
| 22 | James Saunders | 20 | Lodger | Carder | Massachusetts |
| 23 | Ralph H. Stearns | 60 | Head | Farmer | Massachusetts |
| 24 | Evelyn T. Stearns | 45 | Wife | — | Massachusetts |
| 25 | William F. Mills | 22 | Brother-in-law | Truck Driver | Massachusetts |
| 26 | Genevieve T. Mills | 21 | Daughter | — | Massachusetts |
| 27 | Evelyn T. Mills | 2 | Grand-daughter | — | Massachusetts |
| 28 | Minnie R. Dearborn | 65 | Mother-in-law | — | New Hampshire |
| 29 | Charles J. E. Searle | 72 | Head | — | Massachusetts |
| 30 | Annie R. Searle | 72 | Wife | Cloth Inspector | Massachusetts |
| 31 | Edward Kelly | 45 | Head | Owner | Massachusetts |
| 32 | Jennie Kelly | 39 | Wife | — | Canada-English |
| 33 | J. Frances Kelly | 20 | Daughter | Bookkeeper | Massachusetts |
| 34 | Edward P. Kelly | 18 | Son | New Worker | Massachusetts |
| 35 | Harlan P. Kelly | 15 | Son | — | Massachusetts |
| 36 | Joan Kelly | 11 | Daughter | — | Massachusetts |
| 37 | Chester Kelly | 8 | Son | — | Massachusetts |
| 38 | George Stewart | 67 | Head | Moulder | Northern Ireland |
| 39 | Margaret Stewart | 65 | Wife | — | Northern Ireland |
| 40 | George T. Stewart | 35 | Son | Sign Builder | Massachusetts |
Pedigree Summary
Thomas
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)