TM
Thomas Mcgrath — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Thomas Mcgrath across the 1920 and 1930 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 11-person household.
Age 21
b. ~1909
Male
Son
Born: Maine
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | McGrath |
| Given Name | Thomas E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Occupation | Helper |
| Industry | Steamfitter |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Helper |
| Township / Ward | Salem City |
| Est. Birth Year | ~1909 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcgrath | Daughter | — | 23 | ~1907 |
| Sarah Mcgrath | Daughter | — | 18 | ~1912 |
| Rosalie Mcgrath | Daughter | — | 13 | ~1917 |
| John Mcgrath | Son | — | 24 | ~1906 |
| Thomas Mcgrath | Head | — | 50 | ~1880 |
| Eleanor Mcgrath | Daughter | — | 15 | ~1915 |
| Thomas Mcgrath | Son | — | 21 | ~1909 |
| Barbara Mcgrath | Daughter | — | 10 | ~1920 |
| Jeanette Mcgrath | Daughter | — | 11 | ~1919 |
| Elizabeth Mcgrath | Other | — | 43 | ~1887 |
| Pauline Mcgrath | Daughter | — | 7 | ~1923 |
Census Appearances
1920
Essex, Massachusetts
Son, age 11
Essex, Massachusetts · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Essex, Massachusetts
Son, age 21
Essex, Massachusetts · implied b. ~1909 — 11 household members
| Surname | McGrath |
| Given Name | Thomas E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Helper |
| Industry | Steamfitter |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Mcgrath across 2 US Census years (1920 and 1930) in Essex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mcgrath
Son · 1930 · age 21 · b. ~1909 · Massachusetts
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Sibling
John Mcgrath
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalie Mcgrath
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Mcgrath
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcgrath
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Mcgrath
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Mcgrath
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Mcgrath
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Mcgrath
Sibling · 1930 · age 7
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:massachusettscensus00reel903:0069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lester Macculloch | 61 | Head | Cabinet Maker | Scotland |
| 2 | Marion Macculloch | 52 | Wife-H | — | Canada English |
| 3 | Gordon Macculloch | 30 | Son | Optometrist | Massachusetts |
| 4 | Max Gordon | 48 | Head | Salesman | Russia |
| 5 | Lillian Gordon | 40 | Wife-H | — | Poland |
| 6 | Esther F. Gordon | 19 | Daughter | Saleslady | Massachusetts |
| 7 | Helen B. Gordon | 16 | Daughter | — | Massachusetts |
| 8 | Irving C. Gordon | 14 | Son | — | Massachusetts |
| 9 | Nathalie Gordon | 12 | Daughter | — | Massachusetts |
| 10 | Thomas Mcgrath | 50 | Head | Agent | Maine |
| 11 | Elizabeth M. Mcgrath | 43 | Wife-H | — | Maine |
| 12 | John L. Mcgrath | 24 | Son | Teamster | Maine |
| 13 | Mary E. Mcgrath | 23 | Daughter | Saleslady | Maine |
| 14 | Thomas E. Jr. Mcgrath THIS PERSON | 21 | Son | Helper | Maine |
| 15 | Sarah A. Mcgrath | 18 | Daughter | Saleslady | Massachusetts |
| 16 | Eleanor B. Mcgrath | 15 | Daughter | — | Massachusetts |
| 17 | Rosalie W. Mcgrath | 13 | Daughter | — | Massachusetts |
| 18 | Jeanette M. Mcgrath | 11 | Daughter | — | Massachusetts |
| 19 | Barbara Mcgrath | 10 | Daughter | — | Massachusetts |
| 20 | Pauline M. Mcgrath | 7 | Daughter | — | Massachusetts |
| 21 | Joseph Margolis | 55 | Head | — | Poland |
| 22 | Sadie B. Margolis | 33 | Wife-H | — | Poland |
| 23 | Irving J. Margolis | 29 | Son | Lawyer | Poland |
| 24 | Samuel Margolis | 24 | Son | Manufacturer | Massachusetts |
| 25 | Anna Margolis | 21 | Daughter | Book-Keeper | Massachusetts |
| 26 | Max Margolis | 19 | Son | Manager | Massachusetts |
| 27 | Hyman M. Margolis | 17 | Son | — | Massachusetts |
| 28 | Frances M. Margolis | 14 | Daughter | — | Massachusetts |
| 29 | William Schauffer | 33 | Head | Diamond Setter | Russia |
| 30 | Sally Schauffer | 30 | Wife-H | — | Poland |
| 31 | Sidney Schauffer | 9 | Son | — | Massachusetts |
| 32 | Morton D. Schauffer | 7 | Son | — | Massachusetts |
| 33 | Ellis M. Andrews | 57 | Head | Salesman | Vermont |
| 34 | Margaret A. Andrews | 43 | Wife-H | — | Ireland Free State |
| 35 | Timothy Mahoney | 73 | Father in law | — | Ireland Free State |
| 36 | Timothy J. Mahoney | 36 | Bro-in-law | Golf Teacher | Massachusetts |
| 37 | Frank E. Ahearn | 40 | Head | Architect | Massachusetts |
| 38 | Mary L. Ahearn | 40 | Wife-H | — | Ireland Free State |
| 39 | Barbara Ahearn | 5 | Daughter | — | Massachusetts |
| 40 | Mary E. Ahearn | 1 | Daughter | — | Massachusetts |
| 41 | Elizabeth O'Meara | 70 | Mother-in-law | — | Ireland Free State |
| 42 | Edward Hammond | 49 | Head | Oiler | Rhode Island |
| 43 | Matilda Hammond | 53 | Wife-H | Ring Spinner | Canada French |
| 44 | Harry E. Day | 50 | Head | Proprietor | Maine |
| 45 | Ethel G. Day | 50 | Wife-H | — | Massachusetts |
| 46 | Harry P. Day | 17 | Son | Salesman | Massachusetts |
| 47 | Robert L. Day | 16 | Son | — | Massachusetts |
| 48 | Harriet E. Day | 90 | Mother | — | Maine |
| 49 | Florence L. Page | 64 | Sister-in-law | — | Massachusetts |
| 50 | Michael F. Regan | 57 | Head | Adjuster | 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)