MC
Margaret Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Cooper across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a spouse (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1919 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Cooper | Spouse | — | 21 | ~1919 |
| Edwin Cooper | Head | — | 24 | ~1916 |
| Marilyn Cooper | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age
Suffolk, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 10
Suffolk, Massachusetts · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 21
Suffolk-County, Massachusetts · implied b. ~1919 — 3 household members
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 8 |
| 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 Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Cooper (~0.92 confidence) and mother Mary Cooper (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Cooper
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Mary Cooper
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Cooper
Spouse · 1940 · age 21 · b. ~1919 · 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01657-00304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy M Turner | 20 | Daughter | Sales Lady | Massachusetts |
| 42 | Agnes H Watson | 44 | Head | Sales Lady | Massachusetts |
| 43 | Gene Turner | 49 | Sister | Packer | Massachusetts |
| 44 | Gene L Turner | 15 | Niece | Laborer | Massachusetts |
| 45 | Clement Tarquinio | 38 | Head | Laborer | Italy |
| 46 | Pasqualina Tarquinio | 30 | Wife | Laborer | Italy |
| 47 | Beatrice Tarquinio | 4 | Daughter | — | Massachusetts |
| 48 | Mary Tarquinio | 2 | Daughter | — | Massachusetts |
| 49 | Frank Sorrentino | 32 | Head | Shipper | Massachusetts |
| 50 | Francis Sorrentino | 32 | Wife | — | Massachusetts |
| 51 | Anthony Sorrentino | 1 | Son | — | Massachusetts |
| 52 | Mario Feriar | 56 | Head | Laborer | Italy |
| 53 | Barbara Feriar | 46 | Wife | — | Italy |
| 54 | Sterio Feriar | 17 | Son | C.C.C. | Massachusetts |
| 55 | Josephine Feriar | 4 | Daughter | — | Massachusetts |
| 56 | Edwin Cooper | 24 | Head | Galvinizer | Massachusetts |
| 57 | Margaret Cooper THIS PERSON | 21 | Wife | — | Massachusetts |
| 58 | Marilyn Cooper | 1 | Daughter | — | Massachusetts |
| 59 | Ottavio Cantalupo | 45 | Head | — | Italy |
| 60 | Florio Cantalupo | 36 | Wife | — | Pennsylvania |
| 61 | Gaetano Cantalupo | 18 | Son | Truck-Driver | Massachusetts |
| 62 | Mary Cantalupo | 15 | Daughter | N.Y.A. | Massachusetts |
| 63 | John Cantalupo | 14 | Son | — | Massachusetts |
| 64 | Carmella Cantalupo | 12 | Daughter | — | Massachusetts |
| 65 | Otavio Jr. Cantalupo | 10 | Son | — | Massachusetts |
| 66 | Orlando Cantalupo | 10 | Son | — | Massachusetts |
| 67 | Alfred Mezzochi | 29 | Head | Salesman | Massachusetts |
| 68 | Anna Mezzochi | 27 | Wife | — | Massachusetts |
| 69 | Mariann Mezzochi | 5 | Daughter | — | Massachusetts |
| 70 | Maria Cantalupo | 68 | Head | — | Italy |
| 71 | James L. Butler | 30 | Head | Gauger | Massachusetts |
| 72 | Theresa Butler | 22 | Wife | — | Massachusetts |
| 73 | James L. Jr. Butler | 8 | Son | — | Massachusetts |
| 74 | Ann M. Butler | 5 | Daughter | — | Massachusetts |
| 75 | Frances Butler | 3 | Daughter | — | Massachusetts |
| 76 | Joseph Allegra | 23 | Lodger | Carpenter | Massachusetts |
| 77 | Alfred Fontes | 39 | Head | Laborer | Massachusetts |
| 78 | Josephine Fontes | 37 | Wife | Stitcher | Massachusetts |
| 79 | Doris Fontes | 14 | Daughter | — | Massachusetts |
| 80 | Edward Fontes | 12 | Son | New Worker | Massachusetts |
Pedigree Summary
Margaret
Gen 1 · 2 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)