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Mary Leonard — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Androscoggin-County, Maine
Our Model Tree links this Mary Leonard across the 1930 and 1940 US Censuses in Androscoggin-County, Maine (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 12-person household.
Age 11
b. ~1929
Female
Daughter
Born: Maine
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Androscoggin-County, Maine |
| Surname | Leonard |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Auburn City |
| 1935 Residence (County) | Androscoggin |
| Additional Details | |
| Highest Grade | S 5 |
| 1935 Residence | Same House |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | Auburn City |
| Est. Birth Year | ~1929 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Leonard | Daughter | — | 11 | ~1929 |
| Lois Leonard | Daughter | — | 2 | ~1938 |
| Eunice Leonard | Daughter | — | 1 | ~1939 |
| Ruth Leonard | Daughter | — | 13 | ~1927 |
| Dorcas Leonard | Daughter | — | 7 | ~1933 |
| Miriam Leonard | Daughter | — | 5 | ~1935 |
| Peter Leonard | Daughter | — | 8 | ~1932 |
| Arline Leonard | Daughter | — | 17 | ~1923 |
| David Leonard | Head | — | 48 | ~1892 |
| David Leonard | Son | — | 20 | ~1920 |
| Paul Leonard | Son | — | 15 | ~1925 |
| Ella Leonard | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Androscoggin, Maine
Daughter, age 1
Androscoggin, Maine · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Androscoggin-County, Maine
Daughter, age 11
Androscoggin-County, Maine · implied b. ~1929 — 12 household members
| Surname | Leonard |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Auburn City |
| 1935 Residence (County) | Androscoggin |
| Highest Grade | S 5 |
| 1935 Residence | Same House |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Leonard across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Leonard
Daughter · 1940 · age 11 · b. ~1929 · Maine
★ You are viewing this record
Sibling
Lois Leonard
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Leonard
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Leonard
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Leonard
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arline Leonard
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eunice Leonard
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Miriam Leonard
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorcas Leonard
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Leonard
Sibling · 1940 · age 15
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 — Androscoggin-County, Maine
Open full size
1940 US Federal Census — Androscoggin-County, Maine
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01469-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cecil E. Pinkham | 10 | Son | — | Maine |
| 2 | Martha L. Pinkham | 6 | Daughter | — | Maine |
| 3 | Rebecca A. Pinkham | 4 | Daughter | — | Maine |
| 4 | Marlene E. Pinkham | 2 | Daughter | — | Maine |
| 5 | George H. Burke | 51 | Head | Carpenter | Canada Eng |
| 6 | Blanche J. Burke | 39 | Wife | — | Maine |
| 7 | William G. Burke | 5 | Son | — | Maine |
| 8 | David Leonard | 48 | Head | Painter | Maine |
| 9 | Ella A. Leonard | 43 | Wife | — | Mass. |
| 10 | David C. Leonard | 20 | Son | Apprentice | Maine |
| 11 | Arline E. Leonard | 17 | Daughter | — | Maine |
| 12 | Paul C. Leonard | 15 | Son | — | Maine |
| 13 | Ruth M. Leonard | 13 | Daughter | — | Maine |
| 14 | Mary M. Leonard THIS PERSON | 11 | Daughter | — | Maine |
| 15 | Peter E. Leonard | 8 | Daughter | — | Maine |
| 16 | Dorcas L. Leonard | 7 | Daughter | — | Maine |
| 17 | Miriam L. Leonard | 5 | Daughter | — | Maine |
| 18 | Lois M. Leonard | 2 | Daughter | — | Maine |
| 19 | Eunice F. Leonard | 1 | Daughter | — | Maine |
| 20 | Howard A. Ganslow | 61 | Head | — | Maine |
| 21 | Helen V. Ganslow | 52 | Wife | — | Maine |
| 22 | Leonard Johnson | 61 | Head | — | Maine |
| 23 | Abbie M. Johnson | 45 | Wife | — | Maine |
| 24 | Evelyn L. Johnson | 17 | Daughter | — | Maine |
| 25 | Beatrice M. Johnson | 15 | Daughter | — | Maine |
| 26 | Marion A. Johnson | 13 | Daughter | — | Maine |
| 27 | Ina E. Johnson | 13 | Daughter | — | Maine |
| 28 | Paul E. Thibodeau | 23 | Head | Baker | Maine |
| 29 | Jeanette A. Thibodeau | 20 | Wife | Folder | Maine |
| 30 | Arville M. Tracy | 67 | Head | — | Maine |
| 31 | Grace K. Tracy | 66 | Wife | — | Maine |
| 32 | Richard L. Foss | 16 | Grandson | — | Maine |
| 33 | Henry Busby | 46 | Head | Salesman | Maine |
| 34 | Helen Busby | 42 | Wife | — | Maine |
| 35 | Sadie Tufts | 54 | Head | — | Maine |
| 36 | Elmer M. Brackett | 49 | Head | Salesman | Maine |
| 37 | Lottie E. Brackett | 42 | Wife | — | Maine |
| 38 | Norman E. Brackett | 10 | Son | — | Maine |
| 39 | Fred H. Gray | 57 | Head | Bookkeeper | Maine |
| 40 | Edna H. Gray | 50 | Wife | — | Maine |
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)