EJ
Eva Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Eva Johnson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 6-person household.
Age 51
b. ~1889
Female
Spouse
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Johnson |
| Given Name | Eva R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Baltimore |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 5 |
| 1935 Residence | Maryland |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1889 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eva | Age | Birth yr |
|---|---|---|---|---|
| M Johnson | Daughter | — | 16 | ~1924 |
| Margaret Johnson | Daughter | — | 11 | ~1929 |
| John Johnson | Head | — | 48 | ~1892 |
| Doris Loney | Other | — | 21 | ~1919 |
| Jessie Shaw | Other | — | 25 | ~1915 |
| Eva Johnson | Spouse | — | 51 | ~1889 |
Census Appearances
1920
X, Maryland
Other, age 30
X, Maryland · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Eva B |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Baltimore, Maryland
Spouse, age 41
Baltimore, Maryland · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Eva B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 26 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Baltimore-City-County, Maryland
Spouse, age 51
Baltimore-City-County, Maryland · implied b. ~1889 — 6 household members
| Surname | Johnson |
| Given Name | Eva R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Baltimore |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 5 |
| 1935 Residence | Maryland |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Eva Johnson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eva Johnson
Spouse · 1940 · age 51 · b. ~1889 · 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-t0627-01539-00427)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert Hermann | 7 | Son | — | Pennsylvania |
| 2 | John Hermann | 4 | Son | — | Pennsylvania |
| 3 | Norman J. Betz | 44 | Head | Mechanic | Maryland |
| 4 | Hilda J. Betz | 38 | Wife | — | Maryland |
| 5 | Richard N. Betz | 11 | Son | — | Maryland |
| 6 | — | None | — | — | — |
| 7 | Lucy Furthmaier | 56 | Head | Music Teacher | Maryland |
| 8 | George Lucas | 29 | Son-in-law | Agency Man | Pennsylvania |
| 9 | Marie Lucas | 23 | Daughter | — | Maryland |
| 10 | Peter Doerfler | 46 | Head | Printer | Maryland |
| 11 | Hilda Doerfler | 32 | Wife | — | Maryland |
| 12 | Gerald Doerfler | 20 | Son | Mechanic | Maryland |
| 13 | Anna May Doerfler | 12 | Daughter | — | Maryland |
| 14 | Peter Doerfler | 10 | Son | — | Maryland |
| 15 | Virginia Doerfler | 5 | Daughter | — | Maryland |
| 16 | Francis Doerfler | 42 | Brother | Secretary | Maryland |
| 17 | Anna Doerfler | 84 | Mother | — | Germany |
| 18 | Mark Porter | 27 | Head | Chemical Operator | Maryland |
| 19 | Kathleen Porter | 22 | Wife | — | Kentucky |
| 20 | Mark J. Porter | 1 | Son | 0 | Maryland |
| 21 | Kathleen A. Porter | 0 | Daughter | 0 | Maryland |
| 22 | John M. Johnson | 48 | Head | Instructor Printer | Illinois |
| 23 | Eva R. Johnson THIS PERSON | 51 | Wife | — | Delaware |
| 24 | M. Geraldine Johnson | 16 | Daughter | — | Maryland |
| 25 | Margaret R. Johnson | 11 | Daughter | — | Maryland |
| 26 | Doris Loney | 21 | Lodger | Salesgirl | Maryland |
| 27 | Jessie Cecilia Shaw | 25 | Lodger | Salesgirl | Virginia |
| 28 | John S. Buttner | 65 | Head | Salesman | Maryland |
| 29 | Vernona E. Buttner | 49 | Wife | — | Maryland |
| 30 | Melvin J. Buttner | 14 | Son | — | Maryland |
| 31 | Bessie Nunn | 38 | Head | Seamstress | Maryland |
| 32 | John H. Irving | 57 | Head | Machine Machinist | Maryland |
| 33 | Lila Irving | 54 | Wife | — | Maryland |
| 34 | John K. Irving | 28 | Son | Investigator | Maryland |
| 35 | J. Wilbur Lilly | 38 | Head | Vice President | Maryland |
| 36 | Florence Lilly | 30 | Wife | — | Maryland |
| 37 | John P. O'Brien | 37 | Head | Leather Polisher | Ireland |
| 38 | Elizabeth O'Brien | 35 | Wife | — | Maryland |
| 39 | Mary Ann O'Brien | 10 | Daughter | — | Maryland |
| 40 | Elizabeth O'Brien | 1 | 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)