MR
Mary Reardon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Reardon across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 7-person household.
Age 51
b. ~1889
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Boston City |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Nora Reardon | Daughter | — | 9 | ~1931 |
| Denis Reardon | Son | — | 12 | ~1928 |
| James Reardon | Son | — | 14 | ~1926 |
| John Reardon | Head | — | 50 | ~1890 |
| John Reardon | Son | — | 17 | ~1923 |
| Mary Reardon | Spouse | — | 51 | ~1889 |
| Daniel Reardon | Son | — | 11 | ~1929 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 37
Suffolk, Massachusetts · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 34 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Suffolk-County, Massachusetts
Spouse, age 51
Suffolk-County, Massachusetts · implied b. ~1889 — 7 household members
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Reardon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Reardon
Spouse · 1940 · age 51 · b. ~1889 · 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-t0627-01665-00472)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ursula Turynowicz | 48 | Head | — | Poland |
| 2 | Helen Turynowicz | 27 | Daughter | — | Mass |
| 3 | Mary Turynowicz | 23 | Daughter | — | Mass |
| 4 | John Turynowicz | 21 | Son | Waitress | Mass |
| 5 | Nelly Turynowicz | 19 | Daughter | Mother'S Helper | Mass |
| 6 | Leo Turynowicz | 17 | Son | — | Mass |
| 7 | Francis Turynowicz | 15 | Daughter | — | Mass |
| 8 | Thomas Turynowicz | 11 | Son | — | Mass |
| 9 | Adam Aleksiewiczius | 24 | Head | Laborer | Mass |
| 10 | Sophie Aleksiewiczius | 20 | Sister | Stenographer | Mass |
| 11 | Stanley Aleksiewiczius | 18 | Brother | — | Mass |
| 12 | Hedwig Aleksiewiczius | 16 | Sister | — | Mass |
| 13 | Wanda Aleksiewiczius | 26 | Sister | — | Mass |
| 14 | Anthony Jalakas | 54 | Head | Stitcher | Estonia|Poland |
| 15 | Annie Jalakas | 52 | Wife | — | Poland |
| 16 | Joseph Jalakas | 28 | Son | Mechanic | Mass |
| 17 | Edward Jalakas | 24 | Son | Mechanic | Mass |
| 18 | William Jalakas | 22 | Son | New Worker | Mass |
| 19 | Stanley Jalakas | 20 | Son | Wood Worker | Mass |
| 20 | Henry Jalakas | 18 | Son | New Worker | Mass |
| 21 | Regina Jalakas | 15 | Daughter | New Worker | Mass |
| 22 | Josephine Jalakas | 10 | Daughter | — | Mass |
| 23 | John Reardon | 50 | Head | Stationary Fireman | Irish Free State |
| 24 | Mary Reardon THIS PERSON | 51 | Wife | — | Irish Free State |
| 25 | John Reardon | 17 | Son | — | Mass |
| 26 | James Reardon | 14 | Son | New Worker | Mass |
| 27 | Denis Reardon | 12 | Son | — | Mass |
| 28 | Daniel Reardon | 11 | Son | — | Mass |
| 29 | Nora Reardon | 9 | Daughter | — | Mass |
| 30 | Joseph Olczynski | 40 | Head | Reg Pharmacist | Poland |
| 31 | Alice Olczynski | 34 | Wife | — | Rhode Island |
| 32 | Joseph Olczynski | 12 | Son | — | Rhode Island |
| 33 | Alicia Olczynski | 9 | Daughter | — | Rhode Island |
| 34 | William Drubelis | 45 | Head | Laborer | Poland |
| 35 | Viola Drubelis | 43 | Wife | — | Poland |
| 36 | Joseph Drubelis | 19 | Son | — | Mass |
| 37 | Walter Betels | 33 | Head | Repair Man | Mass |
| 38 | Sarah Betels | 30 | Wife | Dyer Shaper | Irish Free State |
| 39 | Ronald Betels | 6 | Son | — | Mass |
| 40 | Mary Betels | 5 | Daughter | — | Mass |
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)