WP
William Porter — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, Pennsylvania
Our Model Tree links this William Porter across the 1920, 1930 and 1940 US Censuses in Lancaster-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & W — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Pennsylvania |
| Surname | Porter |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Food Worker |
| Industry | Lock Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 640 |
| Highest Grade | No 8 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Food Worker |
| Township / Ward | East Lampeter Twp |
| Est. Birth Year | ~1913 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Porter | Head | — | 27 | ~1913 |
| Donald Porter | Son | — | 1 | ~1939 |
| Ella Porter | Spouse | — | 24 | ~1916 |
Census Appearances
1920
Lancaster, Pennsylvania
Son, age 7
Lancaster, Pennsylvania · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lancaster, Pennsylvania
Son, age 17
Lancaster, Pennsylvania · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lancaster-County, Pennsylvania
Head, age 27
Lancaster-County, Pennsylvania · implied b. ~1913 — 3 household members
| Surname | Porter |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lancaster |
| Occupation | Food Worker |
| Industry | Lock Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 640 |
| Highest Grade | No 8 |
| 1935 Residence | Pennsylvania |
| 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 William Porter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Porter (~0.92 confidence) and father W Porter (~0.92 confidence) and mother Eva Porter (~0.92 confidence) and mother Mary Porter (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Porter
b. ~1885
Source father
● Household
· direct · ~0.92
Father
W Porter
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Eva Porter
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Porter
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Porter
Head · 1940 · age 27 · b. ~1913 · 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 — Lancaster-County, Pennsylvania
Open full size
1940 US Federal Census — Lancaster-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03535-00764)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Maurice | 19 | Son | Carrier | Pennsylvania |
| 42 | Claude Pickel | 33 | Head | Laborer | Pennsylvania |
| 43 | Ada Pickel | 32 | Wife | — | Pennsylvania |
| 44 | Mary Ann Pickel | 6 | Daughter | — | Pennsylvania |
| 45 | George Bishop | 28 | Lodger | — | Pennsylvania |
| 46 | Dorothy Bair | 8 | Lodger | — | Pennsylvania |
| 47 | Alice Harkins | 46 | Head | — | Pennsylvania |
| 48 | Edward Harkins | 20 | Son | Farm Work | Pennsylvania |
| 49 | Horace Harkins | 15 | Son | — | Pennsylvania |
| 50 | Charles Jenks | 32 | Head | Polisher | Pennsylvania |
| 51 | Bertha Jenks | 24 | Wife | — | Pennsylvania |
| 52 | Charles Jenks | 7 | Son | — | Pennsylvania |
| 53 | Nancy Jenks | 3 | Daughter | — | Pennsylvania |
| 54 | Joan Jenks | 0 | Daughter | — | Pennsylvania |
| 55 | John Mcfalls | 38 | Head | Loom Fixer | Pennsylvania |
| 56 | Lucille Mcfalls | 35 | Wife | — | Pennsylvania |
| 57 | John Mcfalls | 13 | Son | — | Pennsylvania |
| 58 | William Mcfalls | 77 | Father | — | Pennsylvania |
| 59 | William Porter THIS PERSON | 27 | Head | Food Worker | Pennsylvania |
| 60 | Ella Porter | 24 | Wife | Farm Worker | Pennsylvania |
| 61 | Donald Porter | 1 | Son | — | Pennsylvania |
| 62 | Charles Hamilton | 43 | Head | Farm Worker | Pennsylvania |
| 63 | Bessie Hamilton | 43 | Wife | — | Pennsylvania |
| 64 | Raymond Hamilton | 17 | Son | Farm Worker | Pennsylvania |
| 65 | Betty Hamilton | 16 | Daughter | — | Pennsylvania |
| 66 | George Hamilton | 14 | Son | — | Pennsylvania |
| 67 | Janet Hamilton | 13 | Daughter | — | Pennsylvania |
| 68 | Mary Hamilton | 12 | Daughter | — | Pennsylvania |
| 69 | Dorothy Hamilton | 11 | Daughter | — | Pennsylvania |
| 70 | Richard Hamilton | 10 | Son | — | Pennsylvania |
| 71 | Clara Mae Hamilton | 8 | Daughter | — | Pennsylvania |
| 72 | William Mentzer | 35 | Head | Truck Driver | Pennsylvania |
| 73 | Pearl Mentzer | 34 | Wife | Machine Operator | Pennsylvania |
| 74 | Rosa May Mentzer | 16 | Daughter | — | Pennsylvania |
| 75 | William Jr. Mentzer | 14 | Son | — | Pennsylvania |
| 76 | Margaret Mentzer | 13 | Daughter | — | Pennsylvania |
| 77 | Robert Mentzer | 11 | Son | — | Pennsylvania |
| 78 | Jane Mentzer | 9 | Daughter | — | Pennsylvania |
| 79 | Patricia Mentzer | 7 | Daughter | — | Pennsylvania |
| 80 | Joyce Mentzer | 0 | Daughter | — | Pennsylvania |
Pedigree Summary
William
Gen 1 · 4 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)