MD
Mary Donahue — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this Mary Donahue across the 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1873), then head of a 5-person household.
Age 67
b. ~1873
Female
Spouse
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Donahue |
| Given Name | Mary D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | R.D. 8 |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Rd 8 |
| Est. Birth Year | ~1873 |
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 |
|---|---|---|---|---|
| Jeremiah Donahue | Head | — | 68 | ~1872 |
| John Donahue | Son | — | 31 | ~1909 |
| Leo Donahue | Son | — | 33 | ~1907 |
| Joseph Donahue | Son | — | 36 | ~1904 |
| Mary Donahue | Spouse | — | 67 | ~1873 |
Census Appearances
1920
New Castle, …
Spouse, age 47
New Castle, Delaware · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
Spouse, age 55
New Castle, Delaware · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donohue |
| Given Name | Mary C |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Spouse, age 67
New-Castle-County, Delaware · implied b. ~1873 — 5 household members
| Surname | Donahue |
| Given Name | Mary D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | R.D. 8 |
| 1935 Residence (County) | New Castle |
| Highest Grade | 8 |
| 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 Donahue 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 Donahue
Spouse · 1940 · age 67 · b. ~1873 · Delaware
★ You are viewing this record
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-t0627-00546-00119)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Woodward | 23 | Son | Laborer | Delaware |
| 42 | Robert Woodward | 23 | Son | Laborer | Delaware |
| 43 | Dorothy Woodward | 17 | Daughter | Typist | Delaware |
| 44 | Elizabeth D. Jackson | 37 | Head | — | Delaware |
| 45 | Reginald Jackson | 36 | Husband | Salesman | Delaware |
| 46 | Phillip G. Jackson | 15 | Son | — | Delaware |
| 47 | R. Robert Jackson | 13 | Son | — | Delaware |
| 48 | Jeremiah Donahue | 68 | Head | Farmer | Ireland |
| 49 | Mary D. Donahue THIS PERSON | 67 | Wife | — | Delaware |
| 50 | Joseph Donahue | 36 | Son | Farmer | Pennsylvania |
| 51 | Leo Donahue | 33 | Son | Salesman | Pennsylvania |
| 52 | John Donahue | 31 | Son | Salesman | Pennsylvania |
| 53 | Charles D. Fair | 47 | Head | Paper Maker | Pennsylvania |
| 54 | Maggie Ab Fair | 40 | Wife | — | Pennsylvania |
| 55 | Fred A. Hemsath | 46 | Head | Medical Doctor | Pennsylvania |
| 56 | Gertrude W. Hemsath | 48 | Wife | — | Massachusetts |
| 57 | Elizabeth Hemsath | 16 | Daughter | — | Massachusetts |
| 58 | Emily Hemsath | 10 | Daughter | — | New York |
| 59 | Howard Cox | 73 | Head | Janitor | Pennsylvania |
| 60 | Myrtle D. Cox | 54 | Wife | Packer | Pennsylvania |
| 61 | Aubrey Pugh | 33 | Step-son | Painter | Pennsylvania |
| 62 | Irvin H. Gebhart | 57 | Head | Operator | Delaware |
| 63 | Margaret D. Gebhart | 51 | Wife | — | Delaware |
| 64 | Irvin Jr. Gebhart | 20 | Son | Machinist | Delaware |
| 65 | Leonard Gebhart | 16 | Son | — | Delaware |
| 66 | Helen Gebhart | 14 | Daughter | — | Delaware |
| 67 | Edward Gebhart | 10 | Son | — | Delaware |
| 68 | Earle Pepper | 53 | Head | Draftsman | Pennsylvania |
| 69 | Rosalie C. Pepper | 32 | Wife | — | Minnesota |
| 70 | James D. Peisson | 23 | Head | Laborer | Pennsylvania |
| 71 | Katherine Peisson | 26 | Wife | — | Delaware |
| 72 | John Peisson | 12 | Son | — | Delaware |
| 73 | Thomas Lee | 6 | Step-son | — | Delaware |
| 74 | Harold D. Brown | 39 | Head | Engineer | Delaware |
| 75 | Verna Brown | 29 | Wife | — | Delaware |
| 76 | Harold Jr. Brown | 9 | Son | — | Delaware |
| 77 | Joseph Kelley | 36 | Head | Plumber | Ireland |
| 78 | Elsie D. Kelley | 26 | Wife | — | Pennsylvania |
| 79 | Joan Kelley | 6 | Daughter | — | Delaware |
| 80 | Eileen Kelley | 1 | Daughter | — | 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)