GM
Grace Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Grace Martin across the 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 11-person household.
Age 3
b. ~1927
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Martin |
| Given Name | Grace C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1927 |
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 Grace | Age | Birth yr |
|---|---|---|---|---|
| Thomas Martin | Son | — | 12 | ~1918 |
| Caroline Martin | Spouse | — | 37 | ~1893 |
| Thomas Martin | Head | — | 38 | ~1892 |
| John Martin | Son | — | 10 | ~1920 |
| Vincent Martin | Son | — | 9 | ~1921 |
| Rosa Martin | Daughter | — | 15 | ~1915 |
| Mary Martin | Daughter | — | 7 | ~1923 |
| Eileen Martin | Daughter | — | 13 | ~1917 |
| Grace Martin | Daughter | — | 3 | ~1927 |
| William Martin | Son | — | 2 | ~1928 |
| Edward Martin | Son | — | 5 | ~1925 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 3
Middlesex, Massachusetts · implied b. ~1927 — 11 household members
| Surname | Martin |
| Given Name | Grace C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 13
Middlesex-County, Massachusetts · implied b. ~1927 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Gail |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 7 |
| 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 Grace Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Martin
Daughter · 1930 · age 3 · b. ~1927 · Massachusetts
★ You are viewing this record
Sibling
Thomas Martin
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Martin
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Martin
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosa Martin
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Martin
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Martin
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Martin
Sibling · 1930 · age 10
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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel928:0016)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Martin Considine | 47 | Head | Repair Man | Irish Free State |
| 52 | Mary Considine | 40 | Wife | — | Irish Free State |
| 53 | John J. Considine | 13 | Son | — | Massachusetts |
| 54 | Mary Considine | 12 | Daughter | — | Massachusetts |
| 55 | Martin A. Considine | 8 | Son | — | Massachusetts |
| 56 | Daniel Considine | 6 | Son | — | Massachusetts |
| 57 | John J. Shea | 45 | Head | Teamster | Massachusetts |
| 58 | Mary E. Shea | 44 | Wife | — | Irish Free State |
| 59 | Mary M. Shea | 13 | Daughter | — | Massachusetts |
| 60 | Helen F. Shea | 11 | Daughter | — | Massachusetts |
| 61 | John J. Shea | 9 | Son | — | Massachusetts |
| 62 | Thomas A. Martin | 38 | Head | Mechanic | England |
| 63 | Caroline Martin | 37 | Wife | — | England |
| 64 | Rosa Martin | 15 | Daughter | Folder | Massachusetts |
| 65 | Eileen Martin | 13 | Daughter | — | Massachusetts |
| 66 | Thomas Martin | 12 | Son | — | Massachusetts |
| 67 | John F. Martin | 10 | Son | — | Massachusetts |
| 68 | Vincent Martin | 9 | Son | — | Massachusetts |
| 69 | Mary E. Martin | 7 | Daughter | — | Massachusetts |
| 70 | Edward Martin | 5 | Son | — | Massachusetts |
| 71 | Grace C. Martin THIS PERSON | 3 | Daughter | — | Massachusetts |
| 72 | William Martin | 2 | Son | — | Massachusetts |
| 73 | Peter J. Flanagan | 40 | Head | Stationary Fireman | Irish Free State |
| 74 | Catherine T. Flanagan | 45 | Wife | — | Irish Free State |
| 75 | Daniel M. Flanagan | 13 | Son | — | Massachusetts |
| 76 | Joseph L. Flanagan | 12 | Son | — | Massachusetts |
| 77 | Rita T. Flanagan | 11 | Daughter | — | Massachusetts |
| 78 | Peter Canoles | 25 | Boarder | Manager | Irish Free State |
| 79 | Gerald B. O'Connell | 34 | Head | Shipping Clerk | New Hampshire |
| 80 | Catherine S. O'Connell | 31 | Wife | — | Massachusetts |
| 81 | Doris H. O'Connell | 9 | Daughter | — | Massachusetts |
| 82 | Gerald H. O'Connell | 2 | Son | — | Massachusetts |
| 83 | Catherine Good | 65 | Mother | — | Irish Free State |
| 84 | Freeman Jewers | 52 | Head | Painter | Canada English |
| 85 | Elizabeth Jewers | 50 | Wife | — | Canada English |
| 86 | John Jewers | 21 | Son | Printing Press Oper. | Massachusetts |
| 87 | Gladys Jewers | 19 | Daughter | Typist | Massachusetts |
| 88 | Freeman Jewers | 16 | Son | Machine Operator | Massachusetts |
| 89 | Henry Jewers | 15 | Son | — | Massachusetts |
| 90 | Stewart Jewers | 12 | Son | — | Massachusetts |
| 91 | Mona Macdonald | 71 | Relative | — | Canada English |
| 92 | Elmer S. Thomas | 32 | Head | Belt Maker | Massachusetts |
| 93 | Cora M. Thomas | 26 | Wife | — | Maine |
| 94 | George E. Thomas | 6 | Son | — | Massachusetts |
| 95 | Amy A. Thomas | 4 | Daughter | — | Massachusetts |
| 96 | Eva G. Thomas | 3 | Daughter | — | Massachusetts |
| 97 | Eva M. Thomas | 1 | Daughter | — | Massachusetts |
| 98 | John Mcdonald | 42 | Head | Fireman | Canada English |
| 99 | Martha Mcdonald | 38 | Wife | — | Canada French |
| 100 | Thomas A. Mcdonald | 15 | Son | — | Canada English |
Related Census Records
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)