MR
Margaret Riley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Riley across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Martin & Martin — first a spouse (b.~1910), then head of a 7-person household.
Age 30
b. ~1910
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Riley |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Mary Riley | Daughter | — | 6 | ~1934 |
| Nora Sullivan | Daughter | — | 4 | ~1936 |
| Patrick Riley | Head | — | 34 | ~1906 |
| Timothy Sullivan | Other | — | 34 | ~1906 |
| Ellen Sullivan | Other | — | 31 | ~1909 |
| William Riley | Son | — | 4 | ~1936 |
| Margaret Riley | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Student |
| Industry | School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 19
Suffolk, Massachusetts · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | Margaret P |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 30
Suffolk-County, Massachusetts · implied b. ~1910 — 7 household members
| Surname | Riley |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | 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 Riley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Riley (~0.92 confidence) and father Martin Riley (~0.92 confidence) and mother Mary Riley (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Riley
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Martin Riley
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Mary Riley
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Riley
Spouse · 1940 · age 30 · b. ~1910 · 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-t0627-01669-00213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Claire Walker | 40 | Head | Cook | Massachusetts |
| 2 | Patrick Riley | 34 | Head | Cook | Ireland |
| 3 | Margaret Riley THIS PERSON | 30 | Wife | — | Massachusetts |
| 4 | Mary Riley | 6 | Daughter | — | Massachusetts |
| 5 | William Riley | 4 | Son | — | Massachusetts |
| 6 | Timothy Sullivan | 34 | Brother-in-law | Cook | Ireland |
| 7 | Ellen Sullivan | 31 | Sister-in-law | — | Massachusetts |
| 8 | Nora Sullivan | 4 | Daughter | — | Massachusetts |
| 9 | William Caball | 45 | Head | — | Massachusetts |
| 10 | Henry Walter | 43 | Head | Sculptor | Germany |
| 11 | Elizabeth Walter | 35 | Wife | — | Germany |
| 12 | Rita Walter | 10 | Daughter | — | Illinois |
| 13 | Mary J. Hennessy | 9 | Daughter | — | Massachusetts |
| 14 | Patricia Hennessy | 4 | Daughter | — | Massachusetts |
| 15 | Thomas Kennedy | 29 | Head | Driver | Massachusetts |
| 16 | Myrtle Kennedy | 23 | Wife | — | Canada-Eng |
| 17 | Patricia Kennedy | 1 | Daughter | — | Massachusetts |
| 18 | Harry Sandell | 45 | Head | Proprietor | Massachusetts |
| 19 | Helen Sandell | 45 | Wife | — | Massachusetts |
| 20 | Margaret Lunn | 63 | Head | — | New Jersey |
| 21 | Marshall Marshall | 65 | Lodger | Teacher | Massachusetts |
| 22 | Rita Marshall | 11 | Daughter | — | Massachusetts |
| 23 | Harriet Wilkins | 63 | Wife | — | Massachusetts |
| 24 | Herbert Wilkins | 26 | Son | Teacher | Massachusetts |
| 25 | Mary Wilkins | 21 | Daughter | — | Massachusetts |
| 26 | Raymond Wilkins | 15 | Son | — | Massachusetts |
| 27 | James Wilkins | 6 | Son | — | Massachusetts |
| 28 | Marcella Nichols | 78 | Lodger | — | Maine |
| 29 | Nathan Anderson | 65 | Head | Ironworker | New Brunswick |
| 30 | Lillian Anderson | 64 | Wife | — | Canada-Eng |
| 31 | Benjamin Nelson | 60 | Lodger | Ironworker | Sweden |
| 32 | Walter Cushing | 51 | Head | Clerk | Massachusetts |
| 33 | Frank Russo | 25 | Head | Shipping Clerk | Massachusetts |
| 34 | Stella Russo | 22 | Wife | Presser | Massachusetts |
| 35 | Ruth Lippo | 24 | Sister-in-law | Hairdresser | Massachusetts |
| 36 | Bartholomew Donnelly | 9 | Son (ab) | — | Massachusetts |
| 37 | Joseph Guilty | 32 | Head | Shipper | Massachusetts |
| 38 | Agnes Guilty | 29 | Wife | Operator | Massachusetts |
| 39 | David Baker | 43 | Head | Painter | Massachusetts |
| 40 | Ida Baker | 34 | Wife | — | Russia |
Pedigree Summary
Margaret
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)