MR
Mary Reardon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this Mary Reardon across the 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Reardon |
| Given Name | Mary B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | West Springfield |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | West Springfield |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| David Reardon | Son | — | 17 | ~1923 |
| Elliot Reardon | Daughter | — | 24 | ~1916 |
| Elliot Reardon | Spouse | — | 46 | ~1894 |
| Margaret Reardon | Daughter | — | 20 | ~1920 |
| Christopher Reardon | Head | — | 51 | ~1889 |
| Robert Reardon | Son | — | 19 | ~1921 |
| Sarah Reardon | Daughter | — | 4 | ~1936 |
| Mary Reardon | Daughter | — | 15 | ~1925 |
| Patricia Reardon | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Hampden, Massachusetts
Daughter, age 5
Hampden, Massachusetts · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reardon |
| Given Name | Mary B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Pennsylvania |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Daughter, age 15
Hampden-County, Massachusetts · implied b. ~1925 — 9 household members
| Surname | Reardon |
| Given Name | Mary B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | West Springfield |
| 1935 Residence (County) | Hampden |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| 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 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 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Robert Reardon
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Reardon
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Reardon
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Reardon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elliot Reardon
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Reardon
Sibling · 1940 · age 17
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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01598-00706)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur Page | 51 | Head | Locomotive Fireman | New York |
| 2 | Catherine Page | 52 | Wife | — | Massachusetts |
| 3 | Arthur G Page | 20 | Son | Chauffeur | Massachusetts |
| 4 | Helen J Page | 18 | Daughter | — | Massachusetts |
| 5 | Arthur Pierce | 59 | Head | Ski Sinker | New Hampshire |
| 6 | Sadie Pierce | 56 | Wife | — | New Hampshire |
| 7 | Gerald Pierce | 25 | Son | — | Massachusetts |
| 8 | Frances Pierce | 20 | Son | Assistance Office Clerk | Massachusetts |
| 9 | Edna Mcchesney | 52 | Head | Machine Worker | Massachusetts |
| 10 | Calzie Nye | 74 | Lodger | — | Massachusetts |
| 11 | Jean Mauser | 24 | Lodger | Typist | Massachusetts |
| 12 | Jane C Armstrong | 26 | Lodger | Secretary | Puerto Rico |
| 13 | Nathaniel Tyler | 38 | Head | Accountant | Maryland |
| 14 | Esther Tyler | 31 | Wife | Stenographer | Connecticut |
| 15 | Richard Matchett | 60 | Head | Watchman | Irish Free State |
| 16 | Margaret A Matchett | 60 | Wife | — | Irish Free State |
| 17 | Robert Golberg | 25 | Head | Music Teacher | Massachusetts |
| 18 | Vesta Golberg | 23 | Wife | — | Massachusetts |
| 19 | Christopher Reardon | 51 | Head | Operator | Massachusetts |
| 20 | Elliot Reardon | 46 | Wife | — | Pennsylvania |
| 21 | Elliot H Reardon | 24 | Daughter | Sales Lady | Massachusetts |
| 22 | Margaret F Reardon | 20 | Daughter | Sales Lady | Massachusetts |
| 23 | Robert W Reardon | 19 | Son | — | Massachusetts |
| 24 | David H Reardon | 17 | Son | — | Massachusetts |
| 25 | Mary B Reardon THIS PERSON | 15 | Daughter | — | Massachusetts |
| 26 | Patricia A Reardon | 14 | Daughter | — | Massachusetts |
| 27 | Sarah M Reardon | 4 | Daughter | — | Massachusetts |
| 28 | William E Lombard | 73 | Head | Minister | Maine |
| 29 | Susie Lombard | 64 | Wife | — | Maine |
| 30 | Edward W Lombard | 27 | Son | — | Massachusetts |
| 31 | Margaret Gilman | 36 | Daughter | Teacher | Maine |
| 32 | Joyce E Gilman | 9 | Granddaughter | — | New York |
| 33 | Fannie Leonard | 65 | Head | — | Connecticut |
| 34 | Bessie Van Husen | 63 | Househead | Housekeeper | Iowa |
| 35 | Elizabeth A Royce | 59 | Head | — | Connecticut |
| 36 | Linwood Cunningham | 50 | Head | Office Clerk | Massachusetts |
| 37 | Hazel Cunningham | 44 | Wife | — | Connecticut |
| 38 | Ann R Cunningham | 5 | Daughter | — | Massachusetts |
| 39 | Nora Flood | 75 | Head | — | Irish Free State |
| 40 | Agnes Flood | 49 | Daughter | Switchboard Operator | Massachusetts |
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)