MF
Mary Foster — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Foster across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Female
Spouse
Born: Nova Scotia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Foster |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Nova Scotia |
| 1935 Residence (City) | Saugus |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | nova scotia |
| Township / Ward | Saugus |
| Est. Birth Year | ~1887 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Foster | Daughter | — | 13 | ~1927 |
| George Foster | Head | — | 56 | ~1884 |
| Mary Foster | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Plymouth, Massachusetts
Spouse, age 30
Plymouth, Massachusetts · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mellie K |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Nova Scotia |
| Year of Immigration | 1899 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Nova Scotia |
| Mother's Birthplace | Nova Scotia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | nova scotia |
1930
Suffolk, Massachusetts
Spouse, age 42
Suffolk, Massachusetts · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mabel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Nova Scotia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 22 |
| Father's Birthplace | Nova Scotia |
| Mother's Birthplace | Nova Scotia |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | nova scotia |
1940
Essex-County, Massachusetts
Spouse, age 53
Essex-County, Massachusetts · implied b. ~1887 — 3 household members
| Surname | Foster |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Nova Scotia |
| 1935 Residence (City) | Saugus |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | nova scotia |
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 Foster across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Foster
Spouse · 1940 · age 53 · b. ~1887 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01590-00108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Ledger | 63 | Wife | — | Denmark |
| 42 | George R. Foster | 56 | Head | Coffee Roaster | Massachusetts |
| 43 | Mary E. Foster THIS PERSON | 53 | Wife | — | Nova Scotia |
| 44 | Mary C. Foster | 13 | Daughter | — | Massachusetts |
| 45 | Francis Foster | 52 | Head | Ice Man | Massachusetts |
| 46 | Mary A. Foster | 52 | Wife | — | Northern Ireland |
| 47 | Ralph E. Foster | 46 | Brother | — | Massachusetts |
| 48 | Thomas Pugh | 22 | Nephew | Clerk | Massachusetts |
| 49 | Wilfred Pugh | 20 | Nephew | New Worker | Massachusetts |
| 50 | Harrison M. Williams | 51 | Head | Electrician | New Hampshire |
| 51 | Lotta E. Williams | 48 | Wife | — | Ohio |
| 52 | Ruth Williams | 16 | Daughter | — | Massachusetts |
| 53 | Geraldine Williams | 12 | Daughter | — | Massachusetts |
| 54 | William Williams | 10 | Son | — | Massachusetts |
| 55 | Alfred Del Tergo | 39 | Head | Machinist | Italy |
| 56 | Barbara Del Tergo | 35 | Wife | — | Pennsylvania |
| 57 | Kenneth Del Tergo | 17 | Son | New Worker | Pennsylvania |
| 58 | Marjorie Del Tergo | 15 | Daughter | — | Pennsylvania |
| 59 | Johnathan Davis | 25 | Head | Laborer | Massachusetts |
| 60 | Irene Davis | 25 | Wife | — | Massachusetts |
| 61 | Donald J. Davis | 1 | Son | — | Massachusetts |
| 62 | John P. Walsh | 58 | Head | Bookkeeper | Massachusetts |
| 63 | Carolina Walsh | 61 | Wife | — | Germany |
| 64 | Norman Carter | 31 | Head | Foreman | Maine |
| 65 | Nellie Carter | 27 | Wife | Order Clerk | Canada |
| 66 | Ernest Mason | 31 | Head | Electrician | Massachusetts |
| 67 | Leola Mason | 30 | Wife | — | Maine |
| 68 | Howard Carter | 53 | Head | Painter | Maine |
| 69 | Amelia Carter | 51 | Wife | — | Maine |
| 70 | William Higgins | 65 | Head | — | Massachusetts |
| 71 | Delia Higgins | 65 | Sister-in-law | — | Ireland |
| 72 | Dominick Petkevitch | 64 | Head | Farmer | Lithuania |
| 73 | Mary Petkevitch | 50 | Wife | — | Lithuania |
| 74 | Dominick Jr. Petkevitch | 21 | Son | Farmer | Massachusetts |
| 75 | John W. Norberg | 49 | Head | Carpenter | Sweden |
| 76 | Hildur Norberg | 40 | Wife | — | Sweden |
| 77 | Helen Norberg | 17 | Daughter | — | Massachusetts |
| 78 | Carl Norberg | 16 | Daughter | — | Massachusetts |
| 79 | Vera Norberg | 13 | Daughter | — | Massachusetts |
| 80 | John Norberg | 10 | 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)