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John Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Ross across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Clement & John — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Steel Inspector |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Steel Inspector |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Florence Ross | Head | — | 48 | ~1892 |
| Walter Ross | Son | — | 15 | ~1925 |
| John Ross | Son | — | 21 | ~1919 |
Census Appearances
1920
Baltimore, Maryland
Son, age 1
Baltimore, Maryland · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| 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 11
Baltimore, Maryland · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 21
Baltimore-City-County, Maryland · implied b. ~1919 — 3 household members
| Surname | Ross |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Steel Inspector |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| 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 Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clement Ross (~0.92 confidence) and father John Ross (~0.92 confidence) and mother Helen Ross (~0.92 confidence) and mother Florence Ross (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clement Ross
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Ross
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Helen Ross
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Florence Ross
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Ross
Son · 1940 · age 21 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Walter Ross
Sibling · 1940 · age 15
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
39 people indexed on this census page (nara:1940:m-t0627-01541-00374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie K. Daw | 40 | Wife | Housework | Denmark |
| 2 | Doris M. Daw | 18 | Daughter | School | Maryland |
| 3 | Donald Daw | 16 | Son | School | Maryland |
| 4 | Robert R. Daw | 14 | Son | School | Maryland |
| 5 | Patricia Daw | 2 | Daughter | — | Maryland |
| 6 | Edward J. O'Connor | 53 | Lodger | Retired | New York |
| 7 | Regina A. O'Connor | 18 | Lodger | Housework | Maryland |
| 8 | Charles W. Bailey | 50 | Head | Wholesale Grocer | Maryland |
| 9 | Clara L. Bailey | 50 | Wife | Housework | Maryland |
| 10 | Harry J. Grace | 62 | Head | Manager | Maryland |
| 11 | Emma Grace | 54 | Wife | Housework | Maryland |
| 12 | Annie Grace | 60 | Sister | School Supervisor | Maryland |
| 13 | Edna Grace | 56 | Sister | Housework | Maryland |
| 14 | Olive K. Wallace | 49 | Head | Typist | Maryland |
| 15 | Margaret Wallace | 27 | Daughter | School Teacher | Maryland |
| 16 | Clark Wallace | 18 | Son | Airplane Parts Clerk | Maryland |
| 17 | Ernest W. Bloodsworth | 27 | Son-in-law | Automobile Mechanic | Maryland |
| 18 | Olive H. Bloodsworth | 23 | Daughter | Housework | Maryland |
| 19 | William G. Insley | 76 | Father | — | Maryland |
| 20 | Mariah-Jane Insley | 76 | Mother | — | Maryland |
| 21 | George J. Miller | 64 | Head | Telephone Inspector | Maryland |
| 22 | Katherine N. Miller | 60 | Wife | Housework | Maryland |
| 23 | Emma E. Miller | 59 | Sister | Sales Lady | Maryland |
| 24 | Elizabeth Keating | 62 | Lodger | Housework | Maryland |
| 25 | Florence Ross | 48 | Head | Housework | Maryland |
| 26 | John Ross THIS PERSON | 21 | Son | Steel Inspector | Maryland |
| 27 | Walter Ross | 15 | Son | School | Maryland |
| 28 | Earl E. Becker | 37 | Head | Postal Carrier | Maryland |
| 29 | Margaret Becker | 34 | Wife | Housework | Maryland |
| 30 | Albert Becker | 10 | Son | — | Maryland |
| 31 | William R. Harvey | 51 | Head | Machinist | Pennsylvania |
| 32 | Edna C. Harvey | 60 | Wife | Housework | Pennsylvania |
| 33 | Frederick R., Jr. Wicmer | 31 | Head | Automobile Body Builder | Michigan |
| 34 | Bernice Wicmer | 30 | Wife | Housework | Illinois |
| 35 | Frederick R., 3Rd Wicmer | 7 | Son | — | Michigan |
| 36 | J. Tenson Wicmer | 5 | Son | — | Michigan |
| 37 | Edwin G. Wicmer | 1 | Son | — | Maryland |
| 38 | Ola L. Curley | 38 | Head | Typist | Georgia |
| 39 | Cecil Curley | 19 | Son | Airplane Mechanic | Georgia |
Pedigree Summary
John + 1 sibling
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)