WP
William Pratt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, Pennsylvania
Our Model Tree links this William Pratt across the 1920, 1930 and 1940 US Censuses in Erie-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Lewis & Louis — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, Pennsylvania |
| Surname | Pratt |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Harborcreek |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Laborer |
| Industry | Mfg. Elec. Equip. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | No 4 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Wesleyville Borough |
| Est. Birth Year | ~1916 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Rosemarie Pratt | Daughter | — | 4 | ~1936 |
| Mae Pratt | Daughter | — | 23 | ~1917 |
| Louis Pratt | Head | — | 43 | ~1897 |
| William Pratt | Son | — | 24 | ~1916 |
| James Pratt | Son | — | 16 | ~1924 |
| Margaret Pratt | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Erie, Pennsylvania
Son, age 4
Erie, Pennsylvania · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pratt |
| Given Name | William L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Erie, Pennsylvania
Son, age 14
Erie, Pennsylvania · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pratt |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Erie-County, Pennsylvania
Son, age 24
Erie-County, Pennsylvania · implied b. ~1916 — 6 household members
| Surname | Pratt |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Harborcreek |
| 1935 Residence (County) | Erie |
| Occupation | Laborer |
| Industry | Mfg. Elec. Equip. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | No 4 |
| 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 Pratt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Pratt (~0.92 confidence) and father Louis Pratt (~0.92 confidence) and mother Margaret Pratt (~0.92 confidence) and mother Margaret Pratt (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Pratt
b. ~1897
Source father
● Household
· direct · ~0.92
Father
Louis Pratt
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Margaret Pratt
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Margaret Pratt
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Pratt
Son · 1940 · age 24 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
James Pratt
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosemarie Pratt
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mae Pratt
Sibling · 1940 · age 23
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 — Erie-County, Pennsylvania
Open full size
1940 US Federal Census — Erie-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03501-00861)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Lesh | 66 | Head | Housework | Pennsylvania |
| 2 | Louise Lesh | 21 | Daughter | Beautician | Pennsylvania |
| 3 | John Retthan | 41 | Head | Instructor | Pennsylvania |
| 4 | Gertrude Retthan | 39 | Wife | — | Pennsylvania |
| 5 | Eleanor Retthan | 19 | Daughter | File Clerk | Pennsylvania |
| 6 | Rosalyn Retthan | 17 | Daughter | — | Pennsylvania |
| 7 | Donald Retthan | 16 | Son | Newsboy | Pennsylvania |
| 8 | John Retthan | 13 | Son | — | Pennsylvania |
| 9 | Richard Retthan | 9 | Son | — | Pennsylvania |
| 10 | Russell Retthan | 5 | Son | — | Pennsylvania |
| 11 | David Retthan | 1 | Son | — | Pennsylvania |
| 12 | Ray Morgan | 47 | Head | Machinist | Pennsylvania |
| 13 | Esther Morgan | 36 | Wife | Proprietor | Pennsylvania |
| 14 | Donald Morgan | 24 | Son | Laborer | Pennsylvania |
| 15 | Evelyn Morgan | 23 | Daughter | — | Pennsylvania |
| 16 | Lucille Morgan | 14 | Daughter | — | Pennsylvania |
| 17 | Shirley Morgan | 12 | Daughter | — | Pennsylvania |
| 18 | Raymond Morgan | 8 | Son | — | Pennsylvania |
| 19 | Charles Morgan | 3 | Son | — | Pennsylvania |
| 20 | Otto Lohse | 41 | Head | Laborer | Pennsylvania |
| 21 | Alice Lohse | 47 | Wife | — | Pennsylvania |
| 22 | Joseph Lohse | 13 | Son | — | Florida |
| 23 | Cora Colvin | 51 | Sister-in-law | — | Pennsylvania |
| 24 | Edward Lohse | 45 | Brother | Plasterer | Pennsylvania |
| 25 | Earl Mccumber | 46 | Head | Salesman | Pennsylvania |
| 26 | Hazel Mccumber | 46 | Wife | — | New York |
| 27 | Harold Mccumber | 20 | Son | In State | Pennsylvania |
| 28 | Mazie Mccumber | 19 | Daughter | — | Pennsylvania |
| 29 | Ernest Mccumber | 17 | Son | Janitor | Pennsylvania |
| 30 | Robert Mccumber | 13 | Son | — | Pennsylvania |
| 31 | Jean Mccumber | 11 | Daughter | — | Pennsylvania |
| 32 | Florence Mccumber | 10 | Daughter | — | Pennsylvania |
| 33 | Dolores Mccumber | 8 | Daughter | — | Pennsylvania |
| 34 | Pearl Mccumber | 6 | Daughter | — | Pennsylvania |
| 35 | Louis Pratt | 43 | Head | Welder | Pennsylvania |
| 36 | Margaret Pratt | 43 | Wife | — | Pennsylvania |
| 37 | William Pratt THIS PERSON | 24 | Son | Laborer | Pennsylvania |
| 38 | Mae Pratt | 23 | Daughter | Stenographer | Pennsylvania |
| 39 | James Pratt | 16 | Son | — | Pennsylvania |
| 40 | Rosemarie Pratt | 4 | Daughter | — | Pennsylvania |
Pedigree Summary
William + 3 siblings
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)