JW
John Wiley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Wiley across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Wiley |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Machinist Helper |
| Industry | Barrow Point |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 493 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Machinist Helper |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1900 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Helen Wiley | Spouse | — | 37 | ~1903 |
| Norman Wiley | Son | — | 16 | ~1924 |
| Marion Wiley | Daughter | — | 4 | ~1936 |
| Arnold Wiley | Son | — | 12 | ~1928 |
| John Wiley | Head | — | 40 | ~1900 |
Census Appearances
1930
Baltimore, Maryland
Head, age 31
Baltimore, Maryland · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Willey |
| Given Name | John E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 24 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | manager |
| Industry | Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | un |
| Home Value / Rent | un |
| Veteran | no |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 40
Baltimore-City-County, Maryland · implied b. ~1900 — 5 household members
| Surname | Wiley |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Machinist Helper |
| Industry | Barrow Point |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 493 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 John Wiley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Wiley
Head · 1940 · age 40 · b. ~1900 · Maryland
★ 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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01508-00356)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine Lang | 38 | Wife | — | Maryland |
| 2 | Katherine Lang | 19 | Daughter | Billing Clerk | Maryland |
| 3 | Minnie Lang | 17 | Daughter | Printing Tickets | Maryland |
| 4 | Elizabeth Lang | 16 | Daughter | — | Maryland |
| 5 | Henry Lang | 13 | Son | — | Maryland |
| 6 | Robert Lang | 7 | Son | — | Maryland |
| 7 | Ruth Lang | 6 | Daughter | — | Maryland |
| 8 | Carl Lang | 4 | Son | — | Maryland |
| 9 | Dorothy Lang | 1 | Daughter | — | Maryland |
| 10 | Walter S. Chmurek | 28 | Head | Collector | Poland |
| 11 | Helen Chmurek | 25 | Wife | Sorter | Maryland |
| 12 | Walter R. Chmurek | 2 | Son | — | Maryland |
| 13 | Tadeusz Chmielewicz | 51 | Head | Assistant Foreman | Poland |
| 14 | Julia Chmielewicz | 48 | Wife | — | Poland |
| 15 | Ricardo Chmielewicz | 15 | Son | — | Maryland |
| 16 | Francis Mcadams | 63 | Head | Watchman | Maryland |
| 17 | Lena Mcadams | 65 | Wife | — | Maryland |
| 18 | Lester Conner | 37 | Head | Conductor | Maryland |
| 19 | Mary Conner | 35 | Wife | — | Maryland |
| 20 | Francis Conner | 17 | Son | — | Maryland |
| 21 | Ruth Conner | 15 | Daughter | — | Maryland |
| 22 | William Rose | 49 | Head | Laborer | Maryland |
| 23 | Bessie Rose | 46 | Wife | — | Maryland |
| 24 | William Rose | 19 | Son | Laborer | Maryland |
| 25 | Charles Rose | 17 | Son | Pin Boy | Maryland |
| 26 | Frederick Rose | 11 | Son | — | Maryland |
| 27 | Julia Ptaszymski | 59 | Head | — | Poland |
| 28 | Michael Ptaszymski | 31 | Son | — | Maryland |
| 29 | James Ptaszymski | 35 | Head | Mechanic | Maryland |
| 30 | Frances Ptaszymski | 19 | Wife | — | Maryland |
| 31 | Dorothy Ptaszymski | 1 | Daughter | — | Maryland |
| 32 | Casper Betz | 48 | Head | Ship Carpenter | Maryland |
| 33 | Marie Betz | 47 | Wife | Chocolate Dipper | Maryland |
| 34 | Vera Betz | 17 | Daughter | Sewing Machine Operator | Maryland |
| 35 | Barbara Betz | 13 | Daughter | — | Maryland |
| 36 | John Wiley THIS PERSON | 40 | Head | Machinist Helper | Maryland |
| 37 | Helen Wiley | 37 | Wife | Janitress | Maryland |
| 38 | Norman Wiley | 16 | Son | — | Maryland |
| 39 | Arnold Wiley | 12 | Son | — | Maryland |
| 40 | Marion Wiley | 4 | Daughter | — | Maryland |
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)