MS
Margaret Simmons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Margaret Simmons across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Female
Daughter
Born: England
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Simmons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | England |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | New Worker |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Simmons | Daughter | — | 20 | ~1920 |
| Kathleen Simmons | Daughter | — | 18 | ~1922 |
| Arthur Simmons | Head | — | 44 | ~1896 |
| David Simmons | Son | — | 16 | ~1924 |
| Lois Simmons | Daughter | — | 13 | ~1927 |
| Margaret Simmons | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 10
Middlesex, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Margaret V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Alien |
| Year of Immigration | 1924 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Daughter, age 20
Middlesex-County, Massachusetts · implied b. ~1920 — 6 household members
| Surname | Simmons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | England |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Margaret Simmons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Simmons
Daughter · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
David Simmons
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Simmons
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Simmons
Sibling · 1940 · age 13
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
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-t0627-01702-00223)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank Coates | 38 | Boarder | Machinist Helper | Massachusetts |
| 42 | Mary Coates | 31 | Boarder | Waitress | Massachusetts |
| 43 | Frank M. Coates | 0 | Boarder | — | Massachusetts |
| 44 | Alexander Myers | 45 | Head | Laborer | E. Canada |
| 45 | Annie Myers | 45 | Wife | — | E. Canada |
| 46 | Frank Myers | 55 | Head | Intermediate Handiwork | Massachusetts |
| 47 | Mary E. Myers | 55 | Wife | — | Canada English |
| 48 | Mary Myers | 27 | Daughter | Waitress | Massachusetts |
| 49 | John Pino | 49 | Head | Laborer | Italy |
| 50 | Antonia Pino | 43 | Wife | — | Italy |
| 51 | Anthony Pino | 20 | Son | New Worker | Massachusetts |
| 52 | Sarah Pino | 18 | Daughter | New Worker | Massachusetts |
| 53 | Frank Pino | 17 | Son | New Worker | Massachusetts |
| 54 | Joseph Pino | 15 | Son | New Worker | Massachusetts |
| 55 | John Pino | 14 | Son | — | Massachusetts |
| 56 | Josephine Pino | 12 | Daughter | — | Massachusetts |
| 57 | Samuel Pino | 10 | Son | — | Massachusetts |
| 58 | Mary Pino | 8 | Daughter | — | Massachusetts |
| 59 | Benedict Pino | 6 | Son | — | Massachusetts |
| 60 | Salvatore Pino | 5 | Son | — | Massachusetts |
| 61 | Arthur Pino | 3 | Son | — | Massachusetts |
| 62 | Susan Pino | 1 | Daughter | — | Massachusetts |
| 63 | Arthur Simmons | 44 | Head | Laborer | Canada English |
| 64 | Margaret Simmons | 45 | Wife | — | England |
| 65 | Margaret Simmons THIS PERSON | 20 | Daughter | New Worker | England |
| 66 | Kathleen Simmons | 18 | Daughter | New Worker | Canada English |
| 67 | David Simmons | 16 | Son | New Worker | Canada English |
| 68 | Lois Simmons | 13 | Daughter | — | Canada English |
| 69 | Lester Morris | 22 | Head | Laborer | Massachusetts |
| 70 | Cecilia Morris | 21 | Wife | — | Massachusetts |
| 71 | Lester Jr. Morris | 0 | Son | — | Massachusetts |
| 72 | Agnes Mclaughlin | 64 | Head | — | Massachusetts |
| 73 | Alice Mclaughlin | 41 | Daughter | Secretary | Massachusetts |
| 74 | Albert Murphy | 35 | Head | Truck Driver | Massachusetts |
| 75 | Elizabeth Murphy | 34 | Wife | — | Massachusetts |
| 76 | Albert Jr. Murphy | 16 | Son | — | Massachusetts |
| 77 | Joseph Murphy | 13 | Son | — | Massachusetts |
| 78 | Mary Murphy | 10 | Daughter | — | Massachusetts |
| 79 | Charles Murphy | 6 | Son | — | Massachusetts |
| 80 | Harry Pitra | 43 | Head | Fruit Peddler | Albania |
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)