MH
Mary Haley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this Mary Haley across the 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Female
Head
Born: Delaware
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Haley |
| Given Name | Mary C. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilmington City |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Wilmington City |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Haley | Head | — | 46 | ~1894 |
| Robert Haley | Son | — | 18 | ~1922 |
| Joseph Haley | Son | — | 16 | ~1924 |
| William Shields | Other | — | 49 | ~1891 |
| Thomas Haley | Son | — | 20 | ~1920 |
Census Appearances
1920
New Castle, …
Spouse, age 26
New Castle, Delaware · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healy |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
Spouse, age 36
New Castle, Delaware · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healy |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 14 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Head, age 46
New-Castle-County, Delaware · implied b. ~1894 — 5 household members
| Surname | Haley |
| Given Name | Mary C. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilmington City |
| 1935 Residence (County) | New Castle |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Haley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Haley
Head · 1940 · age 46 · b. ~1894 · Delaware
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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 — New-Castle-County, Delaware
Open full size
1940 US Federal Census — New-Castle-County, Delaware
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00552-00771)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Samuel Balick | 47 | Head | Store Proprietor | Russia |
| 2 | Fannie Balick | 40 | Wife | Store Proprietor | Russia |
| 3 | Milford Balick | 18 | Son | — | Delaware |
| 4 | Ruth Balick | 17 | Daughter | — | Delaware |
| 5 | Norman Balick | 9 | Son | — | Delaware |
| 6 | Margaret A. Hearn | 59 | Head | — | Delaware |
| 7 | Donald M. Hearn | 32 | Son | Millwright Helper | New Jersey |
| 8 | Thomas J. Hearn | 31 | Son | Salesman | Delaware |
| 9 | Louis V. F. Hearn | 26 | Son | Helper | New Jersey |
| 10 | William H. Hearn | 24 | Son | Sec'Y | Pennsylvania |
| 11 | Joseph E. Hearn | 21 | Son | New Worker | New Jersey |
| 12 | Charles W. Hearn | 18 | Son | New Worker | Delaware |
| 13 | Leroy A. Fitzgerald | 45 | Head | Salesman | Delaware |
| 14 | Alma Fitzgerald | 41 | Wife | Saleswoman | Delaware |
| 15 | Evelyn Fitzgerald | 17 | Daughter | New Worker | Delaware |
| 16 | Marvin Fitzgerald | 11 | Son | — | Delaware |
| 17 | Mary C. Haley THIS PERSON | 46 | Head | — | Delaware |
| 18 | Thomas A. Haley | 20 | Son | Labourer | Delaware |
| 19 | Robert J. Haley | 18 | Son | Labourer | Delaware |
| 20 | Joseph F. Haley | 16 | Son | — | Delaware |
| 21 | William O. Shields | 49 | Lodger | Custodian | Delaware |
| 22 | John A. Kane | 62 | Head | Inspector | Delaware |
| 23 | John H. Chandler | 68 | Head | Repairman | Delaware |
| 24 | Margaret M. Chandler | 75 | Wife | — | Delaware |
| 25 | Thomas V. Walraven | 59 | Head | Foreman | Delaware |
| 26 | Ellen E. Walraven | 59 | Wife | — | Delaware |
| 27 | Thomas J. Walraven | 21 | Son | Grainier | Delaware |
| 28 | Charles Wadley | 33 | Head | Cabinet Maker | Delaware |
| 29 | Ann E. Wadley | 33 | Wife | — | Pennsylvania |
| 30 | Susanne Megonigal | 13 | Daughter | — | Pennsylvania |
| 31 | Thomas Crawford | 35 | Head | Floorman | Delaware |
| 32 | Grace C. Crawford | 34 | Wife | — | Delaware |
| 33 | Mary Ann Crawford | 13 | Daughter | — | Delaware |
| 34 | Ruth Crawford | 9 | Daughter | — | Delaware |
| 35 | Otis Morgan | 32 | Head | Shipping Clerk | Kentucky |
| 36 | Gwendolyn Morgan | 24 | Wife | — | Virginia |
| 37 | Yolanda Morgan | 7 | Daughter | — | Delaware |
| 38 | Diane Morgan | 5 | Daughter | — | Delaware |
| 39 | Elaine Morgan | 4 | Daughter | — | Delaware |
| 40 | William A. Gross | 65 | Head | Toolmaker | Delaware |
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)