JH
John Hayes — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Hayes across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Hayes |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Passenger Agent |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 5000 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Passenger Agent |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Margaret Hayes | Daughter | — | 14 | ~1926 |
| John Hayes | Head | — | 48 | ~1892 |
| Carl Hayes | Son | — | 9 | ~1931 |
| Richard Hayes | Son | — | 7 | ~1933 |
| Elizabeth Hayes | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Baltimore, Maryland
Head, age 27
Baltimore, Maryland · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Driver |
| Industry | Transfer Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Head, age 38
Baltimore, Maryland · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 32 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Germany |
| Occupation | City Council |
| Industry | B.C.R.P. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10500 |
| Radio Set | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 48
Baltimore-City-County, Maryland · implied b. ~1892 — 5 household members
| Surname | Hayes |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Passenger Agent |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 5000 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Hayes across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hayes
Head · 1940 · age 48 · b. ~1892 · 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-t0627-01519-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles A. Wagner | 68 | Head | Gardner | Maryland |
| 2 | Anna M. Wagner | 66 | Wife | — | Maryland |
| 3 | Violet E. Mullany | 22 | Lodger | Junior Clerk | Rhode Island |
| 4 | Elizabeth Fielder | 21 | Lodger | Under Clerk | Indiana |
| 5 | Eleanor Wade | 23 | Lodger | Junior Clerk | Nebraska |
| 6 | Clara E. Butler | 21 | Lodger | Junior Clerk | Iowa |
| 7 | John F. Wilhelm | 39 | Head | Salesman | Maryland |
| 8 | Genevieve Wilhelm | 33 | Wife | — | Virginia |
| 9 | John F. Wilhelm | 14 | Son | — | Maryland |
| 10 | Clara E. Wilhelm | 10 | Daughter | — | Maryland |
| 11 | Eunice E. Wilhelm | 6 | Daughter | — | Maryland |
| 12 | Charles M. Fitzpatrick | 45 | Head | General Foreman | Maryland |
| 13 | Mary F. Fitzpatrick | 39 | Wife | — | Maryland |
| 14 | Charles M. Fitzpatrick | 16 | Son | — | Maryland |
| 15 | Anna S. Fitzpatrick | 12 | Daughter | — | Maryland |
| 16 | John R. Hayes THIS PERSON | 48 | Head | Passenger Agent | Maryland |
| 17 | Elizabeth Hayes | 44 | Wife | — | Maryland |
| 18 | Margaret E. Hayes | 14 | Daughter | — | Maryland |
| 19 | Carl J. Hayes | 9 | Son | — | Maryland |
| 20 | Richard A. Hayes | 7 | Son | — | Maryland |
| 21 | Charles E. Bayer | 50 | Head | Representative | Maryland |
| 22 | Gertrude C. Bayer | 46 | Wife | Chief Operator | Maryland |
| 23 | John F. Bayer | 16 | Son | — | Maryland |
| 24 | Charles S. Bayer | 14 | Son | — | Maryland |
| 25 | Sara A. Hodges | 55 | Head | Teacher | Maryland |
| 26 | Stephen R. Hollins | 37 | Head | Accountant | New York |
| 27 | Irene M. Hollins | 35 | Wife | Nurse | Georgia |
| 28 | Stephen R. Hollins | 11 | Son | — | Georgia |
| 29 | Ira V. Webb | 56 | Head | Warrant Officer | Maryland |
| 30 | Bertha C. Webb | 53 | Wife | — | Missouri |
| 31 | Ira V. Jr. Webb | 20 | Son | Mechanic | Maryland |
| 32 | Gladys A. Webb | 16 | Daughter | — | Maryland |
| 33 | Emily W. Twells | 74 | Head | — | Maryland |
| 34 | Frances E. Twells | 41 | Daughter | Teller | Ohio |
| 35 | John M. Sr. Coan | 50 | Head | Recorder | Maryland |
| 36 | John M. Jr. Coan | 25 | Son | Civil Engineer | Maryland |
| 37 | J. Stuart Galloway | 42 | Head | Lawyer | Maryland |
| 38 | Marion S. Galloway | 42 | Wife | — | Maryland |
| 39 | Elaine T. Galloway | 18 | Daughter | — | Maryland |
| 40 | J. Stuart Jr. Galloway | 13 | Son | — | 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)