MD
Margaret Donahue — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Donahue across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Clara — first a spouse (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Donahue |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Donahue | Spouse | — | 26 | ~1914 |
| Alice Donahue | Daughter | — | 1 | ~1939 |
| Joseph Donahue | Head | — | 30 | ~1910 |
| Paul Donahue | Son | — | ~1940 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 4
Allegheny, Pennsylvania · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donohue |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 15
Allegheny, Pennsylvania · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 26
Allegheny-County, Pennsylvania · implied b. ~1914 — 4 household members
| Surname | Donahue |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Margaret Donahue across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Donohue (~0.92 confidence) and mother Clara Donohue (~0.92 confidence) and mother Mary Donahue (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Donohue
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Clara Donohue
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mary Donahue
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Donahue
Spouse · 1940 · age 26 · b. ~1914 · Pennsylvania
★ 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03669-00355)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amos Hayes | 42 | Head | Printer | Pennsylvania |
| 2 | Elizabeth Hayes | 39 | Wife | — | Scotland |
| 3 | Betty Ann Hayes | 5 | Daughter | — | — |
| 4 | W. F. Patterson | 74 | Head | Time Keeper | Pennsylvania |
| 5 | Laura M. Patterson | 51 | Wife | Teacher | Pennsylvania |
| 6 | William M. Patterson | 17 | Son | — | Pennsylvania |
| 7 | Clary Hope | 25 | Head | Clerk | Pennsylvania |
| 8 | Ida Hope | 30 | Wife | — | Pennsylvania |
| 9 | Brenda Hope | 1 | Daughter | — | — |
| 10 | George Moore | 67 | Head | Supervising Principal | Pennsylvania |
| 11 | Ida M. Moore | 65 | Wife | — | Pennsylvania |
| 12 | Frances P. Gilfillan | 33 | Niece | Teacher | Pennsylvania |
| 13 | Charles R. Morrill | 44 | Head | Agent | Pennsylvania |
| 14 | Rose E. Morrill | 47 | Wife | — | Scotland |
| 15 | Charles R. Jr. Morrill | 23 | Son | Agent | Pennsylvania |
| 16 | John F. Morrill | 20 | Son | Salesman | Pennsylvania |
| 17 | Harold Morrill | 12 | Son | — | Pennsylvania |
| 18 | Catherine Becker | 25 | Maid | Maid | West Virginia |
| 19 | David Calley | 60 | Head | Business Agent | Canada |
| 20 | Gertrude Calley | 43 | Wife | — | Pennsylvania |
| 21 | David Raymond Calley | 13 | Son | — | Pennsylvania |
| 22 | Mary Catherine Calley | 11 | Son | — | Pennsylvania |
| 23 | Margaret Baker | 51 | Sister-in-law | — | Pennsylvania |
| 24 | Joseph Donahue | 30 | Head | Laborer | Pennsylvania |
| 25 | Margaret Donahue THIS PERSON | 26 | Wife | — | Pennsylvania |
| 26 | Alice Ann Donahue | 1 | Daughter | — | — |
| 27 | Paul Joseph Donahue | 0 | Son | — | — |
| 28 | Mary Wirth | 71 | Head | — | Pennsylvania |
| 29 | William Renner | 70 | Head | — | Maryland |
| 30 | Minnie B. Renner | 67 | Wife | — | Pennsylvania |
| 31 | Chas. J. Kiel | 42 | Head | Supervisor | Pennsylvania |
| 32 | Thelma Kiel | 41 | Wife | — | Pennsylvania |
| 33 | Grace Kiel | 21 | Daughter | Stenographer | Pennsylvania |
| 34 | Kay Kiel | 15 | Daughter | — | Pennsylvania |
| 35 | Dick Kiel | 10 | Son | — | Pennsylvania |
| 36 | George Schmitt | 52 | Head | Freight Clerk | Pennsylvania |
| 37 | Minnie K. Schmitt | 50 | Wife | — | Pennsylvania |
| 38 | John W. Schmitt | 24 | Son | Printer'S Apprent. | Pennsylvania |
| 39 | Thelma Ruth Schmitt | 21 | Daughter | Clerk | Pennsylvania |
| 40 | Elizabeth Stone | 26 | Daughter | Print & Mail Clerk | Pennsylvania |
Pedigree Summary
Margaret
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)