JL
John Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Lewis across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Lewis |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Apartment |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 758 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Carpenter |
| Township / Ward | Baltimore 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Lewis | Head | — | 66 | ~1874 |
| John Lewis | Son | — | 25 | ~1915 |
| Mary Lewis | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Baltimore, Maryland
Son, age 4
Baltimore, Maryland · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 14
Baltimore, Maryland · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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 25
Baltimore-City-County, Maryland · implied b. ~1915 — 3 household members
| Surname | Lewis |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Carpenter |
| Industry | Apartment |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 758 |
| Highest Grade | H-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 Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Lewis (~0.92 confidence) and father John Lewis (~0.92 confidence) and father Robert Lewis (~0.92 confidence) and mother Flora Lewis (~0.92 confidence) and mother Mary Lewis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Lewis
b. ~1893
Source father
● Household
· direct · ~0.92
Father
John Lewis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Robert Lewis
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Flora Lewis
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Mary Lewis
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lewis
Son · 1940 · age 25 · b. ~1915 · 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-t0627-01530-00424)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Everette Hillis | 24 | Head | Tailor | Maryland |
| 42 | Claire Hillis | 21 | Wife | — | Virginia |
| 43 | William Beckett | 29 | Head | Tailor | Maryland |
| 44 | Gladys Beckett | 34 | Wife | Painter | Maryland |
| 45 | Richard A Gray | 37 | Head | — | Maryland |
| 46 | Amelia V Gray | 35 | Wife | Clerk | Pennsylvania |
| 47 | Daniel Starry | 44 | Head | Self | Maryland |
| 48 | Nettie Starry | 50 | Wife | Labor | Maryland |
| 49 | Patricia Starry | 7 | Daughter | — | Maryland |
| 50 | Fred Evans | 37 | Head | — | Maryland |
| 51 | Alvera B Evans | 40 | Wife | Attendant | England |
| 52 | Lymon B Gompers | 48 | Head | — | Holland |
| 53 | Marie Gompers | 34 | Wife | Chef | Virginia |
| 54 | Betty Gompers | 14 | Daughter | — | Pennsylvania |
| 55 | Harry C Bentz | 52 | Head | Watchman | Maryland |
| 56 | Cora J Bentz | 43 | Wife | — | Maryland |
| 57 | Carrie E Bentz | 18 | Daughter | New Worker | Maryland |
| 58 | Marie G Bentz | 17 | Daughter | Servant | Maryland |
| 59 | Hazel S Bentz | 16 | Daughter | New Worker | Maryland |
| 60 | Harriet Bentz | 14 | Son | — | Maryland |
| 61 | Harold Bentz | 13 | Son | — | Maryland |
| 62 | James Bentz | 11 | Son | — | Maryland |
| 63 | Franklin Bentz | 10 | Son | — | Maryland |
| 64 | Audrey Bentz | 9 | Daughter | — | Maryland |
| 65 | Joseph Bentz | 8 | Son | — | Maryland |
| 66 | Mary Bentz | 7 | Daughter | — | Maryland |
| 67 | William Bentz | 4 | Son | — | Maryland |
| 68 | Rhetania Anna Bentz | 20 | Daughter | Waitress | Maryland |
| 69 | Clarence Conselyea | 39 | Head | — | Georgia |
| 70 | Ida Conselyea | 54 | Wife | — | Maryland |
| 71 | Lloyd Warfield | 50 | Head | — | Maryland |
| 72 | Mary Mcneal | 57 | Head | Buyer | Tennessee |
| 73 | Florence Hill | 71 | Head | Saleslady | Maryland |
| 74 | Worthington Law | 31 | Head | Labor | Maryland |
| 75 | Edna R Law | 22 | Wife | Tailor | Maryland |
| 76 | John S Lewis | 66 | Head | — | Maryland |
| 77 | Mary Lewis | 52 | Wife | — | Maryland |
| 78 | John Lewis THIS PERSON | 25 | Son | Carpenter | Maryland |
| 79 | Robert Thompson | 47 | Head | Mechanic | Maryland |
| 80 | Annie Thompson | 46 | Wife | Operator | Maryland |
Pedigree Summary
John
Gen 1 · 5 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)