MS
Mary Snow — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Snow across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 8-person household.
Age 43
b. ~1897
Female
Spouse
Born: Maine
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Snow |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1897 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Betty Snow | Daughter | — | 18 | ~1922 |
| Robert Snow | Son | — | 17 | ~1923 |
| Mary Snow | Spouse | — | 43 | ~1897 |
| Frederick Snow | Son | — | 5 | ~1935 |
| Arnett Snow | Daughter | — | 13 | ~1927 |
| Marie Snow | Daughter | — | 15 | ~1925 |
| Janett Snow | Daughter | — | 10 | ~1930 |
| Howard Snow | Head | — | 43 | ~1897 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 33
Middlesex, Massachusetts · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Snow |
| Given Name | Mary H. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 24 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Middlesex-County, Massachusetts
Spouse, age 43
Middlesex-County, Massachusetts · implied b. ~1897 — 8 household members
| Surname | Snow |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| 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 Mary Snow across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Snow
Spouse · 1940 · age 43 · b. ~1897 · 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-t0627-01703-00628)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank W. Foster | 62 | Head | Chauffeur | Massachusetts |
| 2 | Helen C. Foster | 54 | Wife | — | Massachusetts |
| 3 | John R. Foster | 22 | Son | Chauffeur | Massachusetts |
| 4 | Louise T. Foster | 17 | Daughter | — | Massachusetts |
| 5 | Spiro Kafalas | 60 | Head | Clerk | Greece |
| 6 | Margaret Kafalas | 58 | Wife | — | New York |
| 7 | Alice Buckley | 35 | Daughter | Teacher | Massachusetts |
| 8 | Carl Schneider | 40 | Head | Baker | Germany |
| 9 | Hilda Schneider | 37 | Wife | — | Germany |
| 10 | William Schneider | 3 | Son | — | Massachusetts |
| 11 | John F. Pendergast | 38 | Head | Clerk | Massachusetts |
| 12 | Dorothy C. Pendergast | 33 | Wife | Clerk | Massachusetts |
| 13 | William Bolton | 76 | Father-in-law | — | England |
| 14 | Jane Bolton | 17 | Mother-in-law | — | Massachusetts |
| 15 | Anne M. Collins | 53 | Head | Secretary | Massachusetts |
| 16 | Margaret A. Collins | 22 | Sister | — | Massachusetts |
| 17 | Susan Collins | 62 | Head | — | Massachusetts |
| 18 | Richard Collins | 26 | Son | Shipper | Massachusetts |
| 19 | Howard D. Snow | 43 | Head | Fireman | Massachusetts |
| 20 | Mary H. Snow THIS PERSON | 43 | Wife | — | Maine |
| 21 | Betty L. Snow | 18 | Daughter | — | Massachusetts |
| 22 | Robert E. Snow | 17 | Son | Wood Cutter | Massachusetts |
| 23 | Marie E. Snow | 15 | Daughter | — | Massachusetts |
| 24 | Arnett Snow | 13 | Daughter | — | Massachusetts |
| 25 | Janett Snow | 10 | Daughter | — | Massachusetts |
| 26 | Frederick Snow | 5 | Son | — | Massachusetts |
| 27 | George Silva | 33 | Head | Lumber | Massachusetts |
| 28 | Catherine A. Silva | 30 | Wife | Presser | Massachusetts |
| 29 | John J. Roselli | 25 | Head | Peddler | Massachusetts |
| 30 | Louise M. Roselli | 24 | Wife | Stitcher | Massachusetts |
| 31 | James E. Trask | 61 | Head | Salesman | Maine |
| 32 | Alice H. Trask | 59 | Wife | — | Maine |
| 33 | Albert Colosi | 50 | Head | Cable Layer | Italy |
| 34 | Ada D. Colosi | 37 | Wife | — | England |
| 35 | Anthony A. Colosi | 21 | Son | Laborer | Massachusetts |
| 36 | Albert V. Colosi | 17 | Son | — | Massachusetts |
| 37 | John R. Colosi | 16 | Son | — | Massachusetts |
| 38 | Richard H. Colosi | 3 | Son | — | Massachusetts |
| 39 | Phillip E. Jones | 12 | Step-son | — | Massachusetts |
| 40 | Robert T. Jones | 6 | Son | — | Massachusetts |
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)