MR
Mary Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Reilly across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 7-person household.
Age 49
b. ~1891
Female
Spouse
Born: Northern Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Reilly |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Northern Ireland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | northern ireland |
| Township / Ward | Boston |
| Est. Birth Year | ~1891 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Reilly | Daughter | — | 14 | ~1926 |
| Eugene Reilly | Head | — | 47 | ~1893 |
| Rosa Reilly | Other | — | 73 | ~1867 |
| Kevin Reilly | Son | — | 11 | ~1929 |
| Brendan Reilly | Son | — | 16 | ~1924 |
| Eugene Reilly | Son | — | 18 | ~1922 |
| Mary Reilly | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 39
Suffolk, Massachusetts · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Northern Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1915 |
| Age at First Marriage | 29 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | northern ireland |
1940
Suffolk-County, Massachusetts
Spouse, age 49
Suffolk-County, Massachusetts · implied b. ~1891 — 7 household members
| Surname | Reilly |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Northern Ireland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | northern ireland |
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 Mary Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Reilly
Spouse · 1940 · age 49 · b. ~1891 · Massachusetts
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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-t0627-01679-00380)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Hailey | 9 | Daughter | — | Massachusetts |
| 42 | Eugene L. Reilly | 47 | Head | Broker | Massachusetts |
| 43 | Mary L. Reilly THIS PERSON | 49 | Wife | — | Northern Ireland |
| 44 | Eugene J. Reilly | 18 | Son | — | Massachusetts |
| 45 | Brendan J. Reilly | 16 | Son | — | Massachusetts |
| 46 | Elizabeth R. Reilly | 14 | Daughter | — | Massachusetts |
| 47 | Kevin P. Reilly | 11 | Son | — | Massachusetts |
| 48 | Rosa G. Reilly | 73 | Mother | — | Massachusetts |
| 49 | John L. Harrington | 33 | Head | Checker | Massachusetts |
| 50 | Helen A. Harrington | 33 | Wife | — | Massachusetts |
| 51 | Patrick O'Melia | 73 | Lodger | — | Irish Free State |
| 52 | Ruth A. O'Melia | 35 | Lodger's daughter | Teacher | Massachusetts |
| 53 | Catherine A. Baird | 72 | Head | — | Massachusetts |
| 54 | Pauline L. Miley | 43 | Niece | Teacher | Massachusetts |
| 55 | Harold G. Sheerin | 43 | Head | Electrician | Massachusetts |
| 56 | Anastasia Sheerin | 40 | Wife | — | Massachusetts |
| 57 | Mary Sheerin | 12 | Daughter | — | New York |
| 58 | Constance Sheerin | 9 | Daughter | — | New York |
| 59 | James Kennedy | 72 | Head | — | Irish Free State |
| 60 | Margaret L. Johnson | 30 | Daughter | — | Massachusetts |
| 61 | Charles F. Johnson | 2 | Grand-son | — | Massachusetts |
| 62 | Alice G. Shea | 54 | Head | — | Massachusetts |
| 63 | Ruth D. Shea | 24 | Daughter | Adjutant Clerk | Massachusetts |
| 64 | Katherine A. Shea | 57 | Sister-in-law | Bookkeeper | Massachusetts |
| 65 | Thomas J. Carty | 51 | Head | Chauffeur | Irish Free State |
| 66 | Ellen V. Carty | 53 | Wife | Telephone Operator | New York |
| 67 | Frederick J. Carty | 24 | Son | Laborer | Massachusetts |
| 68 | Dorothy F. Carty | 22 | Daughter | Telephone Operator | Massachusetts |
| 69 | Thomas J. Jr. Carty | 20 | Son | Bus Boy | Massachusetts |
| 70 | Rita M. Carty | 18 | Daughter | — | Massachusetts |
| 71 | Claire L. Carty | 15 | Daughter | — | Massachusetts |
| 72 | James J. Carty | 14 | Son | — | Massachusetts |
| 73 | Mary T. Carty | 12 | Daughter | — | Massachusetts |
| 74 | Katherine L. Maguire | 55 | Head | — | Irish Free State |
| 75 | James L. Maguire | 22 | Son | — | Massachusetts |
| 76 | Elizabeth A. Maguire | 20 | Daughter | — | Massachusetts |
| 77 | Robert A. Daley | 29 | Nephew | Statistician | Massachusetts |
| 78 | James A. Daley | 26 | Nephew | Manager | Massachusetts |
| 79 | John Cahalane | 52 | Head | Operator | Irish Free State |
| 80 | Nora V. Cahalane | 56 | Wife | — | Irish Free State |
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)