IJ
Ida Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Ida Johnson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Johnson |
| Given Name | Ida E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1893 |
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 Ida | Age | Birth yr |
|---|---|---|---|---|
| Alfred Johnson | Head | — | 51 | ~1889 |
| James Marshall | Other | — | 39 | ~1901 |
| Robert Johnson | Son | — | 21 | ~1919 |
| Ida Johnson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
None, Maryland
Spouse, age 28
None, Maryland · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Occupation | Laundress |
| Industry | private fam |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Spouse, age 37
Baltimore, Maryland · implied b. ~1893 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Lunch Room |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Spouse, age 47
Baltimore-City-County, Maryland · implied b. ~1893 — 4 household members
| Surname | Johnson |
| Given Name | Ida E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 8 |
| 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 Ida Johnson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Johnson
Spouse · 1940 · age 47 · b. ~1893 · 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-t0627-01534-00643)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carrie V Jones | 42 | Wife | — | Maryland |
| 42 | Charles Jr Jones | 10 | Son | — | Maryland |
| 43 | Richard Conway | 20 | Son | Clerk | Maryland |
| 44 | Glenny Conway | 17 | Son | Factory Work | Maryland |
| 45 | Charles Conway | 15 | Son | — | Maryland |
| 46 | Charles Sr Jones | 79 | Father | — | England |
| 47 | Sadie Lawton | 51 | Head | Housework | Maryland |
| 48 | George Hoffman | 63 | Lodger | Watchman | Maryland |
| 49 | Elizabeth King | 33 | Head | Nurse Maid | Maryland |
| 50 | Ruth Ann King | 14 | Daughter | — | Maryland |
| 51 | Adelaide King | 9 | Daughter | — | Maryland |
| 52 | Robert E Clayter | 25 | Head | Carpenter | West Virginia |
| 53 | Evelyn Clayter | 30 | Wife | Operator | Maryland |
| 54 | Ella V Marshall | 32 | Sister in law | Binder Wrapper | Maryland |
| 55 | James H Marshall | 39 | Brother in law | Laborer | Maryland |
| 56 | Frank H Rowe | 30 | Head | Mariner | Virginia |
| 57 | Evelyn V Rowe | 33 | Wife | — | Maryland |
| 58 | Leahann V Rowe | 3 | Daughter | — | Maryland |
| 59 | Chas V. Jr Archambault | 40 | Head | Mechanic | Maryland |
| 60 | Margaret Q Archambault | 36 | Wife | — | Maryland |
| 61 | Charles V. Iii Archambault | 14 | Son | — | Maryland |
| 62 | Walter Dillen | 25 | Lodger | Assistant Manager | Ohio |
| 63 | William Bateman | 30 | Lodger | Chauffeur | North Carolina |
| 64 | Marie Finger | 44 | Head | — | Maryland |
| 65 | Doris Finger | 12 | Daughter | — | Maryland |
| 66 | Bernice Finger | 7 | Daughter | — | Maryland |
| 67 | Charles T Lindsay | 39 | Head | Carpenter | West Virginia |
| 68 | Virginia Lindsay | 34 | Wife | — | Maryland |
| 69 | Hobard A Lindsay | 14 | Son | — | West Virginia |
| 70 | Marvin W Lindsay | 13 | Son | — | West Virginia |
| 71 | Anna G Lindsay | 9 | Daughter | — | Maryland |
| 72 | Mary E Lindsay | 7 | Daughter | — | Maryland |
| 73 | Morris W Atwell | 41 | Head | Garage Man | Maryland |
| 74 | Irene M Atwell | 43 | Wife | — | Maryland |
| 75 | Wesley A Rollins | 18 | Son | Helper Garage | Maryland |
| 76 | Clarence Shakupere | 41 | Brother in law | — | Maryland |
| 77 | Alfred Johnson | 51 | Head | Stone Mason | England |
| 78 | Ida E Johnson THIS PERSON | 47 | Wife | — | Maryland |
| 79 | Robert Johnson | 21 | Son | Bricklayer | Maryland |
| 80 | James H Marshall | 39 | — | Laborer | 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)