MG
Margaret Graham — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Margaret Graham across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Gilbert & Agnes — first a daughter (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Female
Daughter
Born: Connecticut
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Graham |
| Given Name | Margaret B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Connecticut |
| 1935 Residence (City) | Chester City |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | P |
| Hours Worked | 38 |
| Income (1939) | 1500 |
| Highest Grade | C-4 |
| 1935 Residence | Same house |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Occupation | Teacher |
| Township / Ward | Chester City |
| Est. Birth Year | ~1903 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Graham | Daughter | — | 37 | ~1903 |
| J Graham | Daughter | — | 33 | ~1907 |
| Janet Graham | Daughter | — | 35 | ~1905 |
| Gilbert Graham | Head | — | 75 | ~1865 |
| Agnes Graham | Spouse | — | 69 | ~1871 |
Census Appearances
1920
Delaware, Pennsylvania
Daughter, age 18
Delaware, Pennsylvania · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Connecticut |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | looper |
| Industry | textile works |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Delaware, Pennsylvania
Daughter, age 28
Delaware, Pennsylvania · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Margaret B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Connecticut |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Delaware-County, Pennsylvania
Daughter, age 37
Delaware-County, Pennsylvania · implied b. ~1903 — 5 household members
| Surname | Graham |
| Given Name | Margaret B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Connecticut |
| 1935 Residence (City) | Chester City |
| 1935 Residence (County) | Delaware |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | P |
| Hours Worked | 38 |
| Income (1939) | 1500 |
| Highest Grade | C-4 |
| 1935 Residence | Same house |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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. Identified parents: father Gilbert Graham (~0.92 confidence) and mother Agnes Graham (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gilbert Graham
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Agnes Graham
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Graham
Daughter · 1940 · age 37 · b. ~1903 · Pennsylvania
★ You are viewing this record
Sibling
J Graham
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janet Graham
Sibling · 1940 · age 35
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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03487-00306)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma E. Garrett | 68 | Aunt | — | Penna |
| 2 | Gilbert Graham | 75 | Head | — | Scotland |
| 3 | Agnes M. Graham | 69 | Wife | — | Scotland |
| 4 | Margaret B. Graham THIS PERSON | 37 | Daughter | Teacher | Connecticut |
| 5 | Janet C. Graham | 35 | Daughter | Manager | Connecticut |
| 6 | J. Kathryn Graham | 33 | Daughter | Secretary | Connecticut |
| 7 | Kurt G. Heuser | 37 | Head | Dyer | Germany |
| 8 | Florence Heuser | 32 | Wife | — | Penna |
| 9 | Walter Gates | 26 | Head | Draftsman | Penna |
| 10 | Edith Gates | 29 | Wife | — | Penna |
| 11 | William Johnson | 27 | Head | Insulator | Penna |
| 12 | Devona Johnson | 25 | Wife | Secretary | Penna |
| 13 | Joseph J. Wagner | 39 | Head | Stillman | Penna |
| 14 | Florence Wagner | 40 | Wife | — | Penna |
| 15 | Joseph Wagner | 15 | Son | — | Penna |
| 16 | Helen Wagner | 15 | Daughter | — | Penna |
| 17 | Elverna Brighton | 24 | Daughter | Saleslady | Penna |
| 18 | Lillian Maclean | 56 | Sister-in-law | — | New Jersey |
| 19 | Stephen Miles | 28 | Nephew | Mechanical | Penna |
| 20 | Florence Miles | 18 | Niece | Dancer | Penna |
| 21 | Ruth Miles | 15 | Niece | — | Penna |
| 22 | Arthur Sweet | 55 | Head | Foreman | Penna |
| 23 | Matilda Sweet | 55 | Wife | — | Penna |
| 24 | Alvin Sweet | 24 | Son | Clerk | Penna |
| 25 | Elizabeth Anderson | 58 | Sister-in-law | Proprietor | Penna |
| 26 | Charles E. Ripka | 54 | Head | — | Penna |
| 27 | Daisy Ripka | 54 | Wife | — | Indiana |
| 28 | Donald Farley | 15 | Grandson | — | Penna |
| 29 | Thomas E. Layman | 55 | Head | Night Foreman | Penna |
| 30 | Hazel Layman | 48 | Wife | — | Massachusetts |
| 31 | Wilson Pratchell | 51 | Head | Operator | Maryland |
| 32 | Edith Pratchell | 50 | Wife | — | Maryland |
| 33 | Raymond Pratchell | 27 | Son | Shipfitter | Maryland |
| 34 | Edith Pratchell | 16 | Daughter-in-law | — | New Jersey |
| 35 | Walter Pratchell | 20 | Son | Helper | Maryland |
| 36 | Airline Pratchell | 19 | Daughter | — | Maryland |
| 37 | Jack Pratchell | 16 | Son | — | Maryland |
| 38 | James Pratchell | 12 | Son | — | Maryland |
| 39 | Josephine Pratchell | 11 | Daughter | — | Maryland |
| 40 | Russell Pratchell | 8 | Son | — | Penna |
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 2 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)