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William Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this William Smith across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Albert & Mabel — first a son (b.~1915), then head of a 10-person household.
Age 25
b. ~1915
Male
Son
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Smith |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Florist |
| Industry | Retail Greenhouse |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Occupation | Florist |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1915 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Smith | Daughter | — | 10 | ~1930 |
| Albert Smith | Head | — | 50 | ~1890 |
| Mary Kontra | Other | — | 27 | ~1913 |
| Nicholas Farmakis | Other | — | 51 | ~1889 |
| Raymond Holland | Other | — | 33 | ~1907 |
| Augusta Mcnutt | Other | — | 58 | ~1882 |
| William Smith | Son | — | 25 | ~1915 |
| Harry Smith | Son | — | 13 | ~1927 |
| Albert Smith | Son | — | 18 | ~1922 |
| Mabel Smith | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Philadelphia, Pennsylvania
Other, age 4
Philadelphia, Pennsylvania · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | William A. |
| Relationship to Head | Grand Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1930
Philadelphia, Pennsylvania
Other, age 15
Philadelphia, Pennsylvania · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | William |
| Relationship to Head | Step Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 25
Philadelphia-County, Pennsylvania · implied b. ~1915 — 10 household members
| Surname | Smith |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Occupation | Florist |
| Industry | Retail Greenhouse |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 William Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Smith (~0.92 confidence) and mother Mabel Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Smith
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mabel Smith
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Smith
Son · 1940 · age 25 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Mary Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Smith
Sibling · 1940 · age 18
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03699-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie Geiger | 25 | Wife | H | Penna |
| 2 | Marion E. Yates | 57 | Head | Teacher | Penna |
| 3 | Philip N. Yates | 54 | Husband | Artist | Australia |
| 4 | Mary E. Erwin | 80 | Mother | H | Penna |
| 5 | Annie Reinhardt | 45 | Head | H | Penna |
| 6 | Pauline V. Reinhardt | 75 | Mother | H | Germany |
| 7 | Emma M. Reinhardt | 32 | Sister | Teacher | Penna |
| 8 | George J. Aurick | 64 | Head | Fireman | Penna |
| 9 | Dorothy E. Aurick | 64 | Wife | H | Penna |
| 10 | John J. Natter | 8 | Son | — | Penna |
| 11 | William Johns | 42 | Son Law | Blacksmith | Penna |
| 12 | Frieda M. Johns | 34 | Daughter | H | Penna |
| 13 | Mary Ann Johns | 7 | G. Daughter | — | Penna |
| 14 | William Thomas | 45 | Head | Storekeeper | Penna |
| 15 | Elizabeth Thomas | 22 | Wife | Helper | Penna |
| 16 | Wallace Bromley | 53 | Head | Paymaster | Penna |
| 17 | Laura G. La Porte | 70 | Housekeeper | Housekeeper | Penna |
| 18 | Dorothy G. Wright | 36 | Head | H | Penna |
| 19 | James Wright | 14 | Son | — | Penna |
| 20 | Jones Ellen Barr | 49 | Head | Bookkeeper | Penna |
| 21 | Albert Sr. Smith | 50 | Head | Painter | England |
| 22 | Mabel Smith | 48 | Wife | H | Penna |
| 23 | William Smith THIS PERSON | 25 | Son | Florist | Penna |
| 24 | Albert Jr. Smith | 18 | Son | — | Penna |
| 25 | Harry T. Smith | 13 | Son | — | Penna |
| 26 | Mary Smith | 10 | Daughter | — | Penna |
| 27 | Augusta Mcnutt | 58 | Roomer | New Worker | Ohio |
| 28 | Mary Kontra | 27 | Roomer | Frame Maker | Poland |
| 29 | Raymond Holland | 33 | Roomer | Mill Hand | Penna |
| 30 | Nicholas Farmakis | 51 | Roomer | Counterman | Greece |
| 31 | Elizabeth Beatty | 86 | Head | H | Penna |
| 32 | Annie E. Beatty | 50 | Daughter | Teacher | Penna |
| 33 | William Cochrane | 34 | Head | Woodworker | Penna |
| 34 | Mildred A. Cochrane | 32 | Wife | H | Penna |
| 35 | William J. Cochrane | 12 | Son | — | Penna |
| 36 | John F. G. Rauenzahn | 41 | Head | Treasurer | Penna |
| 37 | Rose B. Rauenzahn | 41 | Wife | Teacher | Penna |
| 38 | Mary B. Been | 77 | Mother in Law | H | Penna |
| 39 | Jennie Allen | 81 | Head | H | Eng. Canada |
| 40 | Lena Allen | 58 | Daughter | H | Eng. Canada |
Pedigree Summary
William + 3 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)