MS
Margaret Simmons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Plymouth-County, Massachusetts
Our Model Tree links this Margaret Simmons across the 1920, 1930 and 1940 US Censuses in Plymouth-County, Massachusetts (XGBoost, ~Confirmed), with identified parents George & George — first a daughter (b.~1916), then head of a 7-person household.
Age 24
b. ~1916
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Plymouth-County, Massachusetts |
| Surname | Simmons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Plymouth Town |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Plymouth Town |
| Est. Birth Year | ~1916 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Simmons | Daughter | — | 22 | ~1918 |
| Catherine Simmons | Daughter | — | 30 | ~1910 |
| Margaret Simmons | Daughter | — | 24 | ~1916 |
| Margaret Leahy | Other | — | 2 | ~1938 |
| George Simmons | Head | — | 52 | ~1888 |
| Mary Leahy | Daughter | — | 26 | ~1914 |
| Catherine Simmons | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Plymouth, Massachusetts
Daughter, age 4
Plymouth, Massachusetts · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Daughter, age 14
Plymouth, Massachusetts · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Daughter, age 24
Plymouth-County, Massachusetts · implied b. ~1916 — 7 household members
| Surname | Simmons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Plymouth Town |
| 1935 Residence (County) | Plymouth |
| Highest Grade | H 4 |
| 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 Margaret Simmons across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Simmons (~0.92 confidence) and father George Simmons (~0.92 confidence) and mother Catherine Simmons (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Simmons
b. ~1888
Source father
● Household
· direct · ~0.92
Father
George Simmons
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Catherine Simmons
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Simmons
Daughter · 1940 · age 24 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
Mary Leahy
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Simmons
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Simmons
Sibling · 1940 · age 22
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 — Plymouth-County, Massachusetts
Open full size
1940 US Federal Census — Plymouth-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01639-00415)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice Babineau | 2 | Daughter | — | Massachusetts |
| 2 | Dorothy Babineau | 1 | Daughter | — | Massachusetts |
| 3 | George W. Simmons | 52 | Head | Operator | Massachusetts |
| 4 | Catherine Simmons | 54 | Wife | — | Ireland |
| 5 | Catherine R. Simmons | 30 | Daughter | School Teacher | Massachusetts |
| 6 | Mary Leahy | 26 | Daughter | — | Massachusetts |
| 7 | Margaret Leahy | 2 | Granddaughter | — | Massachusetts |
| 8 | Margaret Simmons THIS PERSON | 24 | Daughter | — | Massachusetts |
| 9 | Gertrude Simmons | 22 | Daughter | Operator | Massachusetts |
| 10 | Lester Swift | 40 | Head | Salesman | Massachusetts |
| 11 | Catherine Swift | 38 | Wife | — | Massachusetts |
| 12 | Asa Warner | 70 | Head | Retired | Nova Scotia |
| 13 | Freda Warner | 57 | Wife | — | New Hampshire |
| 14 | James R. Chandler | 62 | Head | General Agent | Massachusetts |
| 15 | Marie Chandler | 62 | Wife | — | Massachusetts |
| 16 | Alton D. Edes | 62 | Head | Manufacturer | Massachusetts |
| 17 | Bessie Edes | 52 | Wife | — | Nova Scotia |
| 18 | Edwin Harris | 32 | Head | Salesman | Massachusetts |
| 19 | Beulah Harris | 32 | Wife | — | Massachusetts |
| 20 | Jane Howland | 55 | Mother-in-law | — | Massachusetts |
| 21 | Georgia Josselyn | 79 | Grandmother-in-law | — | Massachusetts |
| 22 | Lawrence Reid | 30 | Head | Telephone Emp. | Massachusetts |
| 23 | Olga Reid | 30 | Wife | — | Massachusetts |
| 24 | Barbara Armstrong | 22 | Sister-in-law | — | Massachusetts |
| 25 | Adeline Darby | 53 | Lodger | — | Ireland |
| 26 | Albert W. Boutin | 44 | Head | Proprietor | Massachusetts |
| 27 | Ruth Boutin | 16 | Wife | — | Massachusetts |
| 28 | Jean Boutin | 13 | Daughter | — | Massachusetts |
| 29 | Edward B. Finn | 54 | Head | Pharmacist | New York |
| 30 | Margaret Finn | 42 | Wife | — | Massachusetts |
| 31 | Archibald M. Mcauley | 44 | Head | Gardener | Scotland |
| 32 | Alicia M. Mcauley | 39 | Wife | — | Massachusetts |
| 33 | Martin G. Mcauley | 16 | Son | — | Massachusetts |
| 34 | Charles B. Howland | 52 | Head | Superintendent | Massachusetts |
| 35 | Ruth W. Howland | 50 | Wife | — | Massachusetts |
| 36 | Elliot F. Swift | 75 | Head | — | Massachusetts |
| 37 | Phoebe Mcdougall | 57 | Housekeeper | Housework | England |
| 38 | Lester Churchill | 52 | Head | Investigator | Massachusetts |
| 39 | Ethel Churchill | 50 | Wife | — | Massachusetts |
| 40 | Lucy Swift | 67 | Head | — | Massachusetts |
Pedigree Summary
Margaret + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)