ME
Mary Erickson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Erickson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 4-person household.
Age 69
b. ~1871
Female
Spouse
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Maynard Town |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Same house |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Maynard Town |
| Est. Birth Year | ~1871 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ben Tuikka | Other | — | 40 | ~1900 |
| Anna Tuikka | Daughter | — | 42 | ~1898 |
| Henry Erickson | Head | — | 68 | ~1872 |
| Mary Erickson | Spouse | — | 69 | ~1871 |
Census Appearances
1920
Worcester, Massachusetts
Spouse, age 48
Worcester, Massachusetts · implied b. ~1872 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1901 |
| Naturalization Status | Alien |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Worcester, Massachusetts
Other, age 58
Worcester, Massachusetts · implied b. ~1872 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 23 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Middlesex-County, Massachusetts
Spouse, age 69
Middlesex-County, Massachusetts · implied b. ~1871 — 4 household members
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Maynard Town |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Highest Grade | 3 |
| 1935 Residence | Same house |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Erickson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Erickson
Spouse · 1940 · age 69 · b. ~1871 · 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 — 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-t0627-01610-00556)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Byron | 27 | Daughter | — | Mass |
| 2 | William Byron | 2 | Grandson | — | Mass |
| 3 | Frank E. Parke | 50 | Head | Loom-Fixer | Mass |
| 4 | Elizabeth Parke | 53 | Wife | Spooler | Mass |
| 5 | Simeon Christian | 53 | Head | Stationary Engineer | Mass |
| 6 | Julia Christian | 53 | Wife | — | Canada French |
| 7 | Albert Christian | 26 | Son | Carpenter | Mass |
| 8 | Rita Christian | 15 | Daughter | — | Mass |
| 9 | James E. Smith | 53 | Head | Spinner | Mass |
| 10 | Nova B. Smith | 45 | Wife | Spooler | Nova Scotia |
| 11 | Ralph E. Smith | 24 | Son | Drawing-Carrier | Nova Scotia |
| 12 | Howard J. Clark | 34 | Head | Maintainer | Mass |
| 13 | Alice Clark | 30 | Wife | — | Mass |
| 14 | Patricia A. Clark | 10 | Daughter | — | Mass |
| 15 | Daniel F. Clark | 8 | Son | — | Mass |
| 16 | Mary C. Clark | 6 | Daughter | — | Mass |
| 17 | James L. Clark | 5 | Son | — | Mass |
| 18 | Edward J. Clark | 3 | Son | — | Mass |
| 19 | Thomas A. Doyle | 74 | Head | — | Mass |
| 20 | Lucy J. Doyle | 72 | Wife | — | Nova Scotia |
| 21 | Raymond Hawthorne | 44 | Head | Weaver | Mass |
| 22 | Mandi Hawthorne | 49 | Wife | Caretaker | Finland |
| 23 | Patience Hogan | 75 | Head | — | Maine |
| 24 | Lyman E. Priest | 62 | House-keeper | House-Keeper | Mass |
| 25 | William Annett | 30 | Head | Dry-Finisher | Mass |
| 26 | Alice Annett | 24 | Wife | Grinder | Mass |
| 27 | Edward Annett | 1 | Son | — | Mass |
| 28 | Loretta Dimitry | 2 | Niece | — | Mass |
| 29 | Catherine Peters | 52 | Boarder | — | Albania |
| 30 | Frederick A. Helliwell | 38 | Head | Shop-Worker | Mass |
| 31 | Jane Helliwell | 48 | Wife | — | Mass |
| 32 | Henry Erickson | 68 | Head | Laborer | Finland |
| 33 | Mary Erickson THIS PERSON | 69 | Wife | — | Finland |
| 34 | Ben Tuikka | 40 | Boarder | Plumber | Mass |
| 35 | Anna Tuikka | 42 | Daughter | — | Finland |
| 36 | Henry Ledgard | 57 | Head | Cutter | Mass |
| 37 | Josephine Ledgard | 53 | Wife | — | Mass |
| 38 | Harold Ledgard | 27 | Son | Cutter | Mass |
| 39 | Edward Ledgard | 22 | Son | Bookkeeper | Mass |
| 40 | Marian Ledgard | 24 | Daughter | Teacher | Mass |
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)