JM
James Mcgrath — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this James Mcgrath across the 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 8-person household.
Age 53
b. ~1877
Male
Head
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 32 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Engineer stationary |
| Industry | Gas supply |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5,000 |
| Radio Set | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stationary Engineer |
| Township / Ward | Wakefield Town Pt |
| Est. Birth Year | ~1877 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Alice Mcgrath | Daughter | — | 14 | ~1916 |
| Honora Mcgrath | Daughter | — | 18 | ~1912 |
| Mary Mcgrath | Daughter | — | 19 | ~1911 |
| Josephine Mcgrath | Daughter | — | 10 | ~1920 |
| Amy Mcgrath | Daughter | — | 12 | ~1918 |
| Marguerite Mcgrath | Daughter | — | 16 | ~1914 |
| James Mcgrath | Head | — | 53 | ~1877 |
| Nora Mcgrath | Other | — | 53 | ~1877 |
Census Appearances
1930
Middlesex, Massachusetts
Head, age 53
Middlesex, Massachusetts · implied b. ~1877 — 8 household members
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 32 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Engineer stationary |
| Industry | Gas supply |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5,000 |
| Radio Set | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 64
Middlesex-County, Massachusetts · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 James Mcgrath across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Mcgrath
Head · 1930 · age 53 · b. ~1877 · Massachusetts
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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
50 people indexed on this census page (ia:1930:massachusettscensus00reel929:0898)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Irene Sabo | 12 | Boarder | — | Massachusetts |
| 52 | Charles Sabo | 10 | Boarder | — | Massachusetts |
| 53 | Geraldine Sabo | 8 | Boarder | — | Massachusetts |
| 54 | Flyer, Frank Sabo | 29 | Boarder | Upholsterer | New Hampshire |
| 55 | John H. Jr. Beebe | 34 | Head | Leather Salesman | Massachusetts |
| 56 | Stephanie Beebe | 34 | Wife-H | — | Massachusetts |
| 57 | Priscilla M. Beebe | 9 | Daughter | — | Massachusetts |
| 58 | John H. 3Rd Beebe | 4 | Son | — | Massachusetts |
| 59 | Stephen Beebe | 2 | Daughter | — | Massachusetts |
| 60 | Sloane, Blanche Beebe | 55 | Mother-in-law | — | Maine |
| 61 | Edward Ulrici | 62 | Head | Travelling Salesman | Pennsylvania |
| 62 | Elizabeth Ulrici | 58 | Wife-H | — | Massachusetts |
| 63 | Betty Ulrici | 18 | Daughter | — | Massachusetts |
| 64 | Henry J. Skinner | 52 | Head | Consulting Chemist | Massachusetts |
| 65 | Grace E. Skinner | 52 | Wife-H | — | Massachusetts |
| 66 | Flora E. Skinner | 22 | Daughter | Secretary | Massachusetts |
| 67 | Elm Whitten | 63 | Head | — | Maine |
| 68 | Edward E. Clakes | 39 | Head | Manufacturing Jeweler | Massachusetts |
| 69 | Irma A. Clakes | 33 | Wife-H | — | Massachusetts |
| 70 | Gilbert B. Clakes | 10 | Son | — | Massachusetts |
| 71 | Norma M. Clakes | 6 | Daughter | — | Massachusetts |
| 72 | Hastings G. Wellington | 36 | Head | Salesman | Massachusetts |
| 73 | Barbara B. Wellington | 35 | Wife-H | — | Massachusetts |
| 74 | Hastings M. Wellington | 13 | Son | — | Massachusetts |
| 75 | Virginia Wellington | 10 | Daughter | — | Massachusetts |
| 76 | Margery Wellington | 8 | Daughter | — | Massachusetts |
| 77 | Barbara Wellington | 2 | Daughter | — | Massachusetts |
| 78 | Marie V. Malmquist | 63 | Head | Writer | Sweden |
| 79 | Clarence H. Malmquist | 55 | Head | Machinist | Massachusetts |
| 80 | Bertha L. Goldthwaite | 44 | Sister | Social Worker | Massachusetts |
| 81 | Irene L. Goldthwaite | 22 | Daughter | Florist | Massachusetts |
| 82 | Clarence H. Jr. Goldthwaite | 16 | Son | — | Massachusetts |
| 83 | James Mcgrath THIS PERSON | 53 | Head | Engineer Stationary | Massachusetts |
| 84 | Nora Mcgrath | 53 | Wife-H | — | Irish Free State |
| 85 | Mary T. Mcgrath | 19 | Daughter | Statistician | Massachusetts |
| 86 | Honora T. Mcgrath | 18 | Daughter | — | Massachusetts |
| 87 | Marguerite A. Mcgrath | 16 | Daughter | — | Massachusetts |
| 88 | Alice B. Mcgrath | 14 | Daughter | — | Massachusetts |
| 89 | Amy T. Mcgrath | 12 | Daughter | — | Massachusetts |
| 90 | Josephine Mcgrath | 10 | Daughter | — | Massachusetts |
| 91 | Walter T. Chapman | 41 | Head | Asst. Manager | Massachusetts |
| 92 | Esther S. Chapman | 34 | Wife-H | — | Massachusetts |
| 93 | Julian White | 24 | Head | Travelling Salesman | Massachusetts |
| 94 | Hazel White | 24 | Wife-H | — | Massachusetts |
| 95 | Robert White | 2 | Son | — | Massachusetts |
| 96 | Stephen Macdonald | 47 | Head | Salesman | Canada-English |
| 97 | Sarah Macdonald | 43 | Wife-H | — | Canada-English |
| 98 | Wilfred D. Macdonald | 18 | Son | — | Massachusetts |
| 99 | Herbert C. Macdonald | 16 | Son | — | Massachusetts |
| 100 | Margaret C. Macdonald | 12 | Daughter | — | 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)