MR
Mary Reardon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Westchester-County, New York
Our Model Tree links this Mary Reardon across the 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Westchester-County, New York |
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Yonkers |
| 1935 Residence (County) | Westchester |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Yonkers |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Loretta Reardon | Spouse | — | 52 | ~1888 |
| Thomas Reardon | Head | — | 54 | ~1886 |
| Eleanor Reardon | Daughter | — | 10 | ~1930 |
| Loretta Reardon | Daughter | — | 16 | ~1924 |
| Katherine Reardon | Daughter | — | 15 | ~1925 |
| John Reardon | Son | — | 22 | ~1918 |
| Leona Reardon | Daughter | — | 20 | ~1920 |
| Mary Reardon | Daughter | — | 13 | ~1927 |
| Thomas Reardon | Son | — | 19 | ~1921 |
| Patricia Reardon | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Westchester, New …
Daughter, age 3
Westchester, New York · implied b. ~1927 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Westchester-County, New …
Daughter, age 13
Westchester-County, New York · implied b. ~1927 — 10 household members
| Surname | Reardon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Yonkers |
| 1935 Residence (County) | Westchester |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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
Daughter · 1940 · age 13 · b. ~1927 · New York
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Sibling
Patricia Reardon
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Reardon
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Reardon
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Reardon
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Reardon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Reardon
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Reardon
Sibling · 1940 · age 19
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 — Westchester-County, New York
Open full size
1940 US Federal Census — Westchester-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02864-00766)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Barton | 63 | Wife | — | Italy |
| 2 | Vincent Barton | 32 | Son | Asst Collector | New York |
| 3 | Carmela Barton | 25 | Daughter | — | New York |
| 4 | Daniel Barton | 22 | Son | Errant Boy | New York |
| 5 | Frank Halas | 57 | Head | Laborer | Poland |
| 6 | Antoinette Halas | 56 | Wife | Spinner | Poland |
| 7 | Stephanie Halas | 16 | Daughter | — | New York |
| 8 | Thomas Reardon | 54 | Head | Laborer | New York |
| 9 | Loretta Reardon | 52 | Wife | — | New York |
| 10 | John Reardon | 22 | Son | Soda Dispenser | New York |
| 11 | Leona Reardon | 20 | Daughter | Sales Girl | New York |
| 12 | Thomas Reardon | 19 | Son | Bus Boy | New York |
| 13 | Loretta Reardon | 16 | Daughter | — | New York |
| 14 | Katherine Reardon | 15 | Daughter | — | New York |
| 15 | Mary Reardon THIS PERSON | 13 | Daughter | — | New York |
| 16 | Patricia Reardon | 11 | Daughter | — | New York |
| 17 | Eleanor Reardon | 10 | Daughter | — | New York |
| 18 | Pauline Wielkowski | 53 | Head | — | Poland |
| 19 | Walter Wielkowski | 31 | Son | Picker | New York |
| 20 | Edward Wielkowski | 24 | Son | Cleaner | New York |
| 21 | Joseph Yanaszewski | 64 | Head | Watchman | Poland |
| 22 | Elizabeth Yanaszewski | 48 | Wife | — | Poland |
| 23 | Mary Murray | 65 | Head | — | New York |
| 24 | Bernard Murray | 33 | Son | — | New York |
| 25 | Richard Murray | 27 | Son | Laborer | New York |
| 26 | Karl Kopec | 36 | Head | Laborer | Poland |
| 27 | Jennie Kopec | 19 | Daughter | — | New Jersey |
| 28 | Edward Beront | 27 | Boarder | Bookkeeper | New York |
| 29 | Helen Beront | 21 | Wife | — | New York |
| 30 | Sophie Amend | 54 | Head | Proprietor | Germany |
| 31 | Fred Amend | 31 | Son | Proprietor | New York |
| 32 | Henry Potter | 36 | Head | Lineman | New York |
| 33 | Elizabeth Potter | 34 | Wife | — | New York |
| 34 | Marion Potter | 14 | Daughter | — | New York |
| 35 | William Potter | 12 | Son | — | New York |
| 36 | Joan Potter | 5 | Daughter | — | New York |
| 37 | Joseph Elshick | 32 | Head | Weaver | New York |
| 38 | Ruth Elshick | 28 | Wife | — | New York |
| 39 | Patrick Elshick | 10 | Son | — | New York |
| 40 | Thomas Elshick | 8 | Son | — | New York |
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)