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Margaret Graham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Graham across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 6-person household.
Age 54
b. ~1886
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Graham |
| Given Name | Margaret B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1886 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Charles Graham | Head | — | 67 | ~1873 |
| Nancy Graham | Other | — | 22 | ~1918 |
| Ralph Graham | Other | — | 4 | ~1936 |
| James Graham | Other | — | 3 | ~1937 |
| Ralph Graham | Son | — | 28 | ~1912 |
| Margaret Graham | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 34
Allegheny, Pennsylvania · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Margaret R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Allegheny, Pennsylvania
Other, age 44
Allegheny, Pennsylvania · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Margaret E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 20 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Allegheny-County, Pennsylvania
Spouse, age 54
Allegheny-County, Pennsylvania · implied b. ~1886 — 6 household members
| Surname | Graham |
| Given Name | Margaret B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Graham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Graham
Spouse · 1940 · age 54 · b. ~1886 · Pennsylvania
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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 — 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-t0627-03673-00542)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane G. Bennett | 22 | Daughter | Telegraph Operator | Pennsylvania |
| 42 | Ann M. Bennett | 14 | Daughter | — | Pennsylvania |
| 43 | Robert Bennett | 11 | Son | — | Pennsylvania |
| 44 | Charles F. Muehlbronner | 37 | Head | Stock Man | Pennsylvania |
| 45 | Alma R. Muehlbronner | 37 | Wife | — | Pennsylvania |
| 46 | Charles F. Jr. Muehlbronner | 14 | Son | — | Pennsylvania |
| 47 | Richard A. Muehlbronner | 8 | Son | — | Pennsylvania |
| 48 | William A. Rinehart | 46 | Head | — | Pennsylvania |
| 49 | Mary Rinehart | 20 | Daughter | — | Pennsylvania |
| 50 | William H. Atkinson | 80 | Father-in-law | — | Ohio |
| 51 | Anna K. Kornman | 45 | Head | Teacher | Pennsylvania |
| 52 | Elsie Kornman | 48 | Sister | Office Work | Pennsylvania |
| 53 | F. Wesley Kornman | 29 | Nephew | Salesman | Pennsylvania |
| 54 | Charles S. Graham | 67 | Head | Carpenter | Pennsylvania |
| 55 | Margaret B. Graham THIS PERSON | 54 | Wife | — | Maryland |
| 56 | Ralph E. Graham | 28 | Son | Office Manager | Pennsylvania |
| 57 | Nancy M. Graham | 22 | Daughter-in-law | — | Scotland |
| 58 | Ralph M. Graham | 4 | Grandson | — | Pennsylvania |
| 59 | James B. Graham | 3 | Grandson | — | Pennsylvania |
| 60 | Virginia Mehaffey | 67 | Head | — | England |
| 61 | Frieda Mehaffey | 37 | Daughter | Grocery Clerk | Pennsylvania |
| 62 | John L. Ruehl | 69 | Head | — | Germany |
| 63 | Mathilda Ruehl | 63 | Wife | Baker | Switzerland |
| 64 | Ruth Rheinhart | 22 | Niece | Typing Clerk | Pennsylvania |
| 65 | Harvey H. Ruckel | 38 | Head | Electrician | Pennsylvania |
| 66 | Dorothy E. Ruckel | 45 | Wife | — | Pennsylvania |
| 67 | Della T. Ruckel | 16 | Daughter | — | Pennsylvania |
| 68 | Harvey H. Jr. Ruckel | 10 | Son | — | Pennsylvania |
| 69 | Gilbert M. Ruckel | 7 | Daughter | — | Pennsylvania |
| 70 | Hugh R. Boyce | 51 | Head | Carpenter Contractor | Northern Ireland |
| 71 | Elizabeth M. Boyce | 58 | Wife | — | Northern Ireland |
| 72 | Harry Boyce | 30 | Son | Engineering Clerk | Northern Ireland |
| 73 | Hugh R. Jr. Boyce | 27 | Son | Bldg. Supervisor | Pennsylvania |
| 74 | James M. Boyce | 22 | Son | Hull Boy | Pennsylvania |
| 75 | Thomas Clark | 68 | Head | Stationary Engineer | Scotland |
| 76 | Lillias W. Clark | 64 | Wife | — | Scotland |
| 77 | Warner C. Mackey | 16 | Grandson | — | Pennsylvania |
| 78 | Russell E. Schaaf | 34 | Head | Cable Splicer | Pennsylvania |
| 79 | Bessie G. Schaaf | 34 | Wife | — | Pennsylvania |
| 80 | Robert D. Schaaf | 14 | Son | — | Pennsylvania |
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)