MR
Margaret Riley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Margaret Riley across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Dennis & Michael — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Riley |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private Work |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 468 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Housekeeper |
| Township / Ward | Malden City |
| Est. Birth Year | ~1918 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Riley | Daughter | — | 22 | ~1918 |
| Dennis Riley | Head | — | 69 | ~1871 |
| Edward Riley | Son | — | 35 | ~1905 |
| Richard Riley | Son | — | 24 | ~1916 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 2
Middlesex, Massachusetts · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 13
Middlesex, Massachusetts · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | Margaret A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| 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
Middlesex-County, Massachusetts
Daughter, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Riley |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Housekeeper |
| Industry | Private Work |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 468 |
| 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 Riley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dennis Riley (~0.92 confidence) and father Michael Riley (~0.92 confidence) and mother Katie Riley (~0.92 confidence) and father Louis Riley (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dennis Riley
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Michael Riley
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Katie Riley
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Louis Riley
b. ~1891
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Riley
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Edward Riley
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Riley
Sibling · 1940 · age 24
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-t0627-01608-00322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George G. Breda | 26 | Head | Saleslady | Italy |
| 2 | Helen C. Breda | 19 | Wife | Operator | Massachusetts |
| 3 | Timothy J. Daley | 74 | Head | — | Irish Free State |
| 4 | Mary E. Daley | 73 | Wife | — | Irish Free State |
| 5 | Mary E. Mccarthy | 41 | Daughter | Saleslady | Massachusetts |
| 6 | Helen F. Mccarthy | 25 | Daughter | Operator | Massachusetts |
| 7 | Alice J. Comms | 34 | Daughter | Operator | Massachusetts |
| 8 | George D. Comms | 10 | Grandson | — | Massachusetts |
| 9 | Henry J. Clivorthy | 47 | Head | Machinist | Massachusetts |
| 10 | Gladys F. Clivorthy | 41 | Wife | — | Massachusetts |
| 11 | Robert J. Clivorthy | 14 | Son | — | Massachusetts |
| 12 | Charles Binka | 45 | Head | Painter | Lithuania |
| 13 | Veronica Binka | 44 | Wife | — | Lithuania |
| 14 | John S. Binka | 13 | Son | — | Massachusetts |
| 15 | Peter J. White | 61 | Head | Shipper | Canada English |
| 16 | Mary A. White | 56 | Wife | — | Massachusetts |
| 17 | Mary L. White | 21 | Daughter | Packer | Massachusetts |
| 18 | Herbert S. Radcliffe | 65 | Lodger | Salesman | England |
| 19 | Francis E. Sybil | 25 | Head | Foreman | Massachusetts |
| 20 | Sophie L. Sybil | 25 | Wife | Stitcher | Massachusetts |
| 21 | Maryana Sokol | 60 | Head | — | Poland |
| 22 | Joseph W. Callahan | 37 | Head | Letter Carrier | Massachusetts |
| 23 | Margaret J. Callahan | 37 | Wife | — | Massachusetts |
| 24 | Martin J. Crowe | 46 | Head | Laborer | Irish Free State |
| 25 | Mary M. Crowe | 45 | Wife | — | Irish Free State |
| 26 | Martin J. Jr. Crowe | 23 | Son | Packer | Massachusetts |
| 27 | John J. Crowe | 20 | Son | Truck-Man | Massachusetts |
| 28 | Marie S. Crowe | 15 | Daughter | New Worker | Massachusetts |
| 29 | Walter E. Crowe | 14 | Son | — | Massachusetts |
| 30 | William F. Gould | 58 | Head | Shipping Clerk | Massachusetts |
| 31 | Mary E. Gould | 55 | Wife | — | Irish Free State |
| 32 | Francis W. Mahoney | 25 | Nephew | Laborer | Massachusetts |
| 33 | Frank Linnily | 68 | Head | Pipe Fitter | New Jersey |
| 34 | Charlotte Linnily | 65 | Wife | — | Canada English |
| 35 | Mary Linnily | 31 | Daughter | Federal R | Massachusetts |
| 36 | Margaret M. Long | 70 | Head | — | Irish Free State |
| 37 | Dennis Riley | 69 | Head | — | Canada English |
| 38 | Edward J. Riley | 35 | Son | Clerk | Canada English |
| 39 | Richard J. Riley | 24 | Son | Laborer | Massachusetts |
| 40 | Margaret M. Riley THIS PERSON | 22 | Daughter | Housekeeper | Massachusetts |
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 4 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)