MC
Mary Clayton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Clayton across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Leonard — first a spouse (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Clayton |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Richard Clayton | Head | — | 38 | ~1902 |
| Mary Clayton | Daughter | — | 15 | ~1925 |
| Mary Clayton | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Philadelphia, Pennsylvania
Daughter, age 11
Philadelphia, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clayton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Daughter, age 21
Philadelphia, Pennsylvania · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clayton |
| Given Name | Mary W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Occupation | Inspector |
| Industry | Dept. Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Spouse, age 31
Philadelphia-County, Pennsylvania · implied b. ~1909 — 3 household members
| Surname | Clayton |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Class of Worker | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same House |
| 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 Mary Clayton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Clayton (~0.92 confidence) and father Leonard Clayton (~0.92 confidence) and mother Anna Clayton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Clayton
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Leonard Clayton
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Anna Clayton
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Clayton
Spouse · 1940 · age 31 · b. ~1909 · 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-03729-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Teresa | 13 | Daughter | — | Pennsylvania |
| 42 | Liberta | 9 | Daughter | — | Pennsylvania |
| 43 | Austin | 6 | Son | — | Pennsylvania |
| 44 | Richard Clayton | 38 | Head | Piano Tuner | Pennsylvania |
| 45 | Mary Clayton THIS PERSON | 31 | Wife | — | Pennsylvania |
| 46 | Mary L. Clayton | 15 | Daughter | — | West Virginia |
| 50 | James Powell | 32 | Head | Chauffeur | North Carolina |
| 51 | Leona Powell | 34 | Wife | Dressmaker | Colorado |
| 54 | James Marshall | 57 | Head | — | Virginia |
| 55 | Ada Marshall | 56 | Wife | — | Virginia |
| 56 | Roy Marshall | 32 | Son | Laborer | Pennsylvania |
| 57 | Rogers Guyton | 47 | Head | Cook | Georgia |
| 58 | Mamie Guyton | 43 | Wife | — | Maryland |
| 59 | Orville Burke | 58 | Head | — | Pennsylvania |
| 60 | Ivy Burke | 53 | Wife | Housework | Pennsylvania |
| 61 | Lloyd Burke | 10 | Son | — | Pennsylvania |
| 62 | Ellen Green | 27 | Sister-in-law | Housework | Pennsylvania |
| 63 | Edward Wilkins | 17 | Lodger | News Walker | Pennsylvania |
| 64 | Samuel H. Griffith | 61 | Head | Grocer | British West Indies |
| 65 | Florence Griffith | 57 | Wife | — | British West Indies |
| 66 | Vernon Barnes | 6 | Lodger | — | Pennsylvania |
| 67 | Albert Jefferson | 4 | Lodger | — | Pennsylvania |
| 68 | Lelia Adams | 56 | Head | — | Virginia |
| 69 | Joseph Betts | 13 | Grandson | — | Pennsylvania |
| 70 | John Cook | 43 | Head | Laborer | North Carolina |
| 71 | Hazel Cook | 35 | Wife | Housework | Tennessee |
| 72 | Noah Brittingham | 56 | Lodger | Odd Jobs | Maryland |
| 73 | Constanzo Borrello | 70 | Head | Grocer | Italy |
| 74 | Mary Borrello | 67 | Wife | — | Italy |
| 75 | Louis Borrello | 23 | Son | Truck Driver | Pennsylvania |
| 76 | Joseph Borrello | 19 | Son | Electrician | Pennsylvania |
| 77 | Junius De Porter | 53 | Head | Night Watchman | South Carolina |
| 78 | Sara De Porter | 49 | Wife | — | South Carolina |
| 79 | Junius Jr. De Porter | 23 | Son | Florist | North Carolina |
| 80 | John De Porter | 20 | Son | — | South Carolina |
Pedigree Summary
Mary
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)