MJ
Marjorie Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Marjorie Johnson across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Johnson |
| Given Name | Marjorie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Catonsville Pt |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marjorie | Age | Birth yr |
|---|---|---|---|---|
| Lemuel Johnson | Son | — | 6 | ~1934 |
| Lemuel Johnson | Head | — | 41 | ~1899 |
| Hazel Johnson | Daughter | — | 14 | ~1926 |
| Violet Johnson | Daughter | — | 4 | ~1936 |
| Jane Johnson | Daughter | — | 16 | ~1924 |
| Jane Johnson | Spouse | — | 40 | ~1900 |
| Ann Johnson | Daughter | — | 1 | ~1939 |
| Marjorie Johnson | Daughter | — | 11 | ~1929 |
| Letitia Johnson | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 2
Baltimore, Maryland · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marjorie L |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| 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-County, Maryland
Daughter, age 11
Baltimore-County, Maryland · implied b. ~1929 — 9 household members
| Surname | Johnson |
| Given Name | Marjorie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| Highest Grade | 5 |
| 1935 Residence | Maryland |
| 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 Marjorie Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marjorie Johnson
Daughter · 1940 · age 11 · b. ~1929 · Maryland
★ You are viewing this record
Sibling
Letitia Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Johnson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Johnson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Johnson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lemuel Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Johnson
Sibling · 1940 · age 1
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01503-00187)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George C. King | 32 | head | Proprietor | Maryland |
| 42 | Clara D. King | 32 | wife | — | Maryland |
| 43 | Lemuel Johnson | 41 | head | Chauffer | Maryland |
| 44 | Jane D. Johnson | 40 | wife | Servant | Maryland |
| 45 | Jane Johnson | 16 | daughter | — | Maryland |
| 46 | Hazel Johnson | 14 | daughter | — | Maryland |
| 47 | Marjorie Johnson THIS PERSON | 11 | daughter | — | Maryland |
| 48 | Letitia Johnson | 9 | daughter | — | Maryland |
| 49 | Lemuel Johnson | 6 | son | — | Maryland |
| 50 | Violet Johnson | 4 | daughter | — | Maryland |
| 51 | Ann Johnson | 1 | daughter | — | Maryland |
| 52 | Thomas Squirrell | 66 | head | Laborer | Maryland |
| 53 | Laura Squirrell | 65 | wife | Laundress | Maryland |
| 54 | Benjamin Brown | 39 | son-in-law | Porter | Maryland |
| 55 | Josephine Brown | 36 | daughter | Laundress | Maryland |
| 56 | Susan D. Page | 54 | head | — | Maryland |
| 57 | Harvey Page | 21 | son | Laborer | Maryland |
| 58 | Mary Page | 21 | daughter | Elementary School Teacher | Maryland |
| 59 | Carlton Page | 19 | son | Waiter | Maryland |
| 60 | Gertrude Page | 17 | daughter | Servant | Maryland |
| 61 | William Page | 16 | daughter | — | Maryland |
| 62 | Earl Page | 15 | son | — | Maryland |
| 63 | Calvin Page | 12 | son | — | Maryland |
| 64 | Charles Hardy | 68 | head | Cook | Maryland |
| 65 | Mary Hardy | 69 | wife | Servant | Virginia |
| 66 | Arthur Hardy | 26 | son | Waiter | Maryland |
| 67 | Edna Washington | 34 | daughter | Cook | Maryland |
| 68 | Edith May Washington | 9 | granddaughter | — | Maryland |
| 69 | Charles Washington | 12 | grandson | — | Maryland |
| 70 | Elene Washington | 14 | granddaughter | — | Maryland |
| 71 | Alberta Hardy | 33 | daughter | Cook | Virginia |
| 72 | Nathaniel Hardy | 14 | grandson | — | Maryland |
| 73 | Ruth May Tyson | 3 | granddaughter | — | Maryland |
| 74 | Scholley Webb | 45 | head | Porter | Maryland |
| 75 | Ada Webb | 43 | wife | — | Maryland |
| 76 | Scholley Webb | 21 | son | Laborer | Maryland |
| 77 | Leon Webb | 19 | son | Representative | Maryland |
| 78 | Coleman Webb | 16 | son | New Worker | Maryland |
| 79 | Upshur Webb | 14 | son | — | Maryland |
| 80 | Dewester Webb | 12 | son | — | Maryland |
Related Census Records
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)