MR
Mary Reardon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Reardon across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 10-person household.
Age 64
b. ~1876
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Reardon |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Peabody City |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birthplace (normalized) | irish free state |
| Township / Ward | Peabody City |
| Est. Birth Year | ~1876 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nora Reardon | Daughter | — | 29 | ~1911 |
| Peter Reardon | Son | — | 28 | ~1912 |
| Mary Reardon | Spouse | — | 64 | ~1876 |
| Eleanor Reardon | Daughter | — | 20 | ~1920 |
| Joseph Reardon | Son | — | 18 | ~1922 |
| Peter Reardon | Head | — | 65 | ~1875 |
| Daniel Reardon | Son | — | 36 | ~1904 |
| Francis Reardon | Son | — | 26 | ~1914 |
| Mary Reardon | Daughter | — | 21 | ~1919 |
| Catherine Reardon | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 55
Suffolk, Massachusetts · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 36 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birthplace (normalized) | irish free state |
1940
Essex-County, Massachusetts
Spouse, age 64
Essex-County, Massachusetts · implied b. ~1876 — 10 household members
| Surname | Reardon |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Peabody City |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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.
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This person
Anchor record
Mary Reardon
Spouse · 1940 · age 64 · b. ~1876 · 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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01588-00236)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John D. Costello | 27 | Head | Store Manager | Massachusetts |
| 42 | Marie E. Costello | 28 | Sister | Stenographer | Massachusetts |
| 43 | Francis M. Costello | 25 | Brother | Store Manager | Massachusetts |
| 44 | John M. Skelton | 56 | Head | Asst. Supervisor | Massachusetts |
| 45 | Hannah M. Skelton | 54 | Wife | — | Massachusetts |
| 46 | Eleanor M. Skelton | 27 | Daughter | Clerk | Massachusetts |
| 47 | Esther P. Skelton | 25 | Daughter | Clerk | Massachusetts |
| 48 | Marie J. Skelton | 21 | Daughter | Stenographer | Massachusetts |
| 49 | John J. Skelton | 21 | Son | — | Massachusetts |
| 50 | Stuart Ball | 30 | Head | Salesman | Massachusetts |
| 51 | Helen Ball | 25 | Wife | — | Massachusetts |
| 52 | Marcia W. Ball | 3 | Daughter | — | Massachusetts |
| 53 | Edwin Reid | 51 | Head | Baker | Scotland |
| 54 | James Reid | 30 | Son | Staking | Scotland |
| 55 | Florence Reid | 31 | Daughter-in-law | — | Massachusetts |
| 56 | William Watkins | 37 | Head | Box Maker | Massachusetts |
| 57 | Emily Watkins | 37 | Wife | — | Maine |
| 58 | Freda Jordan | 36 | Daughter | Stitcher | Massachusetts |
| 59 | Claire Balnavis | 40 | Daughter | Stitcher | Massachusetts |
| 60 | Peter Reardon | 65 | Head | Carpenter | Irish Free State |
| 61 | Mary A. Reardon THIS PERSON | 64 | Wife | — | Irish Free State |
| 62 | Daniel F. Reardon | 36 | Son | Carpenter | Massachusetts |
| 63 | Nora M. Reardon | 29 | Daughter | Stitcher | Massachusetts |
| 64 | Peter J. Reardon | 28 | Son | Police Officer | Massachusetts |
| 65 | Francis Reardon | 26 | Son | Truck Driver | Massachusetts |
| 66 | Catherine Reardon | 24 | Daughter | Salesgirl | Massachusetts |
| 67 | Mary Reardon | 21 | Daughter | — | Massachusetts |
| 68 | Eleanor Reardon | 20 | Daughter | Office Work | Massachusetts |
| 69 | Joseph Reardon | 18 | Son | — | Massachusetts |
| 70 | Michael J. Mccarty | 46 | Head | Engineer | Massachusetts |
| 71 | Mary E. Mccarty | 42 | Wife | — | Massachusetts |
| 72 | Marion Mccarty | 18 | Daughter | — | Massachusetts |
| 73 | Ralph Mccarty | 17 | Son | — | Massachusetts |
| 74 | Warren Mccarty | 12 | Son | — | Massachusetts |
| 75 | Dorothy Mccarty | 10 | Daughter | — | Massachusetts |
| 76 | Raymond Mccarty | 7 | Son | — | Massachusetts |
| 77 | Arthur Mccarty | 4 | Son | — | Massachusetts |
| 78 | Mary Williams | 69 | Head | — | Irish Free State |
| 79 | John Williams | 39 | Son | Laborer | Massachusetts |
| 80 | Thomas Williams | 36 | Son | Laborer | Massachusetts |
Related Census Records
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)