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John Shaw — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Shaw across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Blanch — first a son (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Son
Born: Maryland
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Shaw |
| Given Name | John G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Separated |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Lumber |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 470 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Chauffeur |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1907 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Barbara Shaw | Head | — | 57 | ~1883 |
| James Shaw | Son | — | 23 | ~1917 |
| Clarence Shaw | Son | — | 20 | ~1920 |
| John Shaw | Son | — | 33 | ~1907 |
Census Appearances
1920
Baltimore, Maryland
Son, age 14
Baltimore, Maryland · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaw |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 21
Baltimore, Maryland · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaw |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 33
Baltimore-City-County, Maryland · implied b. ~1907 — 4 household members
| Surname | Shaw |
| Given Name | John G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Separated |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Chauffeur |
| Industry | Lumber |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 470 |
| Highest Grade | No 6 |
| 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 Shaw across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Blanch Shaw (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Blanch Shaw
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Shaw
Son · 1940 · age 33 · b. ~1907 · Maryland
★ You are viewing this record
Sibling
James Shaw
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Shaw
Sibling · 1940 · age 20
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01533-00579)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patrick G. Durkin | 27 | Son in law | Machinist | Maryland |
| 42 | Patricia A. Durkin | 5 | Granddaughter | — | Maryland |
| 43 | Margaret E. Durkin | 2 | Granddaughter | — | Maryland |
| 44 | William S. Schmidt | 43 | Head | — | Maryland |
| 46 | Barbara L. Shaw | 57 | Head | — | Maryland |
| 47 | John G. Shaw THIS PERSON | 33 | Son | Chauffeur | Maryland |
| 48 | James W. Shaw | 23 | Son | Receiving Clerk | Maryland |
| 49 | Clarence E. Shaw | 20 | Son | Chauffeur | Maryland |
| 50 | Edith O'Rourke | 60 | Head | — | Maryland |
| 51 | Herbert Emig | 36 | Nephew | Research Clerk | Maryland |
| 52 | William L. Shaw | 27 | Head | Steel Cleaner | Maryland |
| 53 | Margaret L. Shaw | 21 | Wife | — | Maryland |
| 54 | Effie E. Lange | 55 | Head | — | Maryland |
| 55 | Finley Butterbaugh | 22 | Son | Laborer | Maryland |
| 56 | Mary B. Hienzenberger | 75 | Sister | — | Maryland |
| 57 | Joseph Miller | 57 | Head | Doorman | Maryland |
| 58 | Catherine Miller | 56 | Wife | — | Maryland |
| 59 | Samuel Cameron | 40 | Head | Electrician | Maryland |
| 60 | Effie Cameron | 35 | Wife | — | Maryland |
| 62 | Harry H. Larsen | 50 | Head | Paper Ruler | Maryland |
| 63 | Ellen B. Larsen | 39 | Wife | — | Maryland |
| 64 | Howard D. Roberts | 17 | Step son | Laborer | Maryland |
| 65 | Robert Goetz | 12 | Lodger | — | Maryland |
| 66 | Caroline Disney | 66 | Head | — | Maryland |
| 67 | Ruth L. Disney | 23 | Daughter | Comptometer Operator | Maryland |
| 68 | Carolyn M. Disney | 21 | Daughter | Comptometer Operator | Maryland |
| 69 | Joseph P. Casentino | 43 | Head | Sa | Italy |
| 70 | Alice M. Casentino | 47 | Daughter | Laborer | Italy |
| 71 | Michael Casentino | 19 | Son | New Worker | Maryland |
| 72 | William Casentino | 17 | Son | New Worker | Maryland |
| 73 | Charles Casentino | 11 | Son | New Worker | Maryland |
| 74 | Josephine Casentino | 16 | Daughter | — | Maryland |
| 75 | Angeline Casentino | 13 | Daughter | — | Maryland |
| 76 | Anna E. Roney | 82 | Head | — | Maryland |
| 77 | Josephine Roney | 42 | Daughter | Seamstress | Maryland |
| 78 | Agusta Mercer | 26 | Head | — | Germany |
| 79 | Charles W. Lee | 47 | Head | Salesman | Maryland |
| 80 | Margaret E. Lee | 36 | Wife | — | Maryland |
Pedigree Summary
John + 2 siblings
Gen 1 · 1 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)