MF
Mary Frost — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Frost across the 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1874), then head of a 7-person household.
Age 56
b. ~1874
Female
Spouse
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Frost |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | California |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Everett City |
| Est. Birth Year | ~1874 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Esther Frost | Daughter | — | 18 | ~1912 |
| Adeline Frost | Daughter | — | 22 | ~1908 |
| Mary Frost | Spouse | — | 56 | ~1874 |
| Dorothy Frost | Daughter | — | 28 | ~1902 |
| William Frost | Head | — | 59 | ~1871 |
| Everett Frost | Son | — | 13 | ~1917 |
| Marion Frost | Daughter | — | 15 | ~1915 |
Census Appearances
1930
Middlesex, Massachusetts
Spouse, age 56
Middlesex, Massachusetts · implied b. ~1874 — 7 household members
| Surname | Frost |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | California |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Other, age 67
Middlesex-County, Massachusetts · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frost |
| Given Name | Myra |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | 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 Mary Frost across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Frost
Spouse · 1930 · age 56 · b. ~1874 · 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
49 people indexed on this census page (ia:1930:massachusettscensus00reel918:0389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Amandine L Gear | 76 | Head | Laborer | Canada-English |
| 52 | Bernard Gear | 43 | Son | Rigger | Massachusetts |
| 53 | Lucy Gear | 41 | Daughter | Stitcher | Massachusetts |
| 54 | Gladys Macdonald | 38 | Head | Stitcher | Massachusetts |
| 55 | Kathryn L Macdonald | 17 | Daughter | Stitcher | Massachusetts |
| 56 | Ruth S Macdonald | 15 | Daughter | — | Massachusetts |
| 57 | Jean L Macdonald | 13 | Daughter | — | Massachusetts |
| 58 | George Murphy | 45 | Head | Manager | Massachusetts |
| 59 | Mary Murphy | 42 | Wife | — | Massachusetts |
| 60 | George Murphy | 17 | Son | Runner | Massachusetts |
| 61 | Mary Murphy | 13 | Daughter | — | Massachusetts |
| 62 | Daniel J Forrestall | 45 | Head | Janitor | Massachusetts |
| 63 | Margaret E Forrestall | 45 | Wife | — | Massachusetts |
| 64 | Thomas J Boylan | 48 | Head | Painter | Massachusetts |
| 65 | Cecelia E Boylan | 40 | Wife | — | Massachusetts |
| 66 | Thomas R Boylan | 25 | Son | Chauffeur | Massachusetts |
| 67 | Emily L Boylan | 23 | Daughter | Stitcher | Massachusetts |
| 68 | Cecelia A Boylan | 22 | Daughter | Stitcher | Massachusetts |
| 69 | Mary T Boylan | 19 | Daughter | Stitcher | Massachusetts |
| 70 | Helen G Boylan | 17 | Daughter | — | Massachusetts |
| 71 | Dorothy Simpson | 52 | Head | — | Canada-French |
| 72 | George Simpson | 24 | Son | Shipper | Massachusetts |
| 73 | Joseph B Simpson | 23 | Son | Chauffeur | Massachusetts |
| 74 | Harry Simpson | 21 | Son | Chauffeur | Massachusetts |
| 75 | Arthur F Simpson | 20 | Son | Truck Driver | Massachusetts |
| 76 | Anna R Simpson | 18 | Daughter | — | Massachusetts |
| 77 | Benjamin Simpson | 16 | Son | — | Massachusetts |
| 78 | Robert Simpson | 14 | Son | — | Massachusetts |
| 79 | William C Hale | 52 | Head | Agent | Massachusetts |
| 80 | Mary A Hale | 52 | Wife | — | England |
| 81 | William C Jr Hale | 19 | Son | Chauffeur | Massachusetts |
| 82 | Marion E Hale | 24 | Daughter | — | Massachusetts |
| 83 | Milton K Hale | 27 | Son-in-law | Salesman | Massachusetts |
| 84 | Mildred E Hale | 27 | Daughter | — | Massachusetts |
| 85 | George W Johnston | 48 | Head | Salesman | Massachusetts |
| 86 | Irene E Johnston | 42 | Wife | — | Massachusetts |
| 87 | George W Jr Johnston | 16 | Son | — | Massachusetts |
| 88 | William R Frost | 59 | Head | Salesman | Massachusetts |
| 89 | Mary E Frost THIS PERSON | 56 | Wife | — | Massachusetts |
| 90 | Dorothy M Frost | 28 | Daughter | — | Massachusetts |
| 91 | Adeline S Frost | 22 | Daughter | — | Massachusetts |
| 92 | Esther S Frost | 18 | Daughter | — | Massachusetts |
| 93 | Marion L Frost | 15 | Daughter | — | Massachusetts |
| 94 | Everett L Frost | 13 | Son | — | Massachusetts |
| 95 | Walter J Crocker | 50 | Head | Salesman | Pennsylvania |
| 96 | Mary E Crocker | 46 | Wife | Teacher | Massachusetts |
| 97 | Charles F Adams | 77 | Head | — | Massachusetts |
| 98 | Harriet M Adams | 76 | Wife | — | Maine |
| 99 | Cora Merritt | 76 | Sister | — | 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)