JJ
Julia Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charles-County, Maryland
Our Model Tree links this Julia Johnson across the 1920, 1930 and 1940 US Censuses in Charles-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 8-person household.
Age 58
b. ~1882
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-County, Maryland |
| Surname | Johnson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1 La Plata |
| Additional Details | |
| Occupation | Laborer |
| Industry | Private house |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 250 |
| Highest Grade | No 5 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election District 1 La Plata |
| Est. Birth Year | ~1882 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Julia | Age | Birth yr |
|---|---|---|---|---|
| Agnes Johnson | Daughter | — | 8 | ~1932 |
| Julia Johnson | Daughter | — | 28 | ~1912 |
| Martha Johnson | Daughter | — | 20 | ~1920 |
| George Johnson | Head | — | 62 | ~1878 |
| Philip Johnson | Son | — | 23 | ~1917 |
| Robert Johnson | Son | — | 38 | ~1902 |
| Harry Johnson | Son | — | 25 | ~1915 |
| Julia Johnson | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Charles, Maryland
Spouse, age 36
Charles, Maryland · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Charles, Maryland
Spouse, age 44
Charles, Maryland · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 18 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Spouse, age 58
Charles-County, Maryland · implied b. ~1882 — 8 household members
| Surname | Johnson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1 La Plata |
| Occupation | Laborer |
| Industry | Private house |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 250 |
| Highest Grade | No 5 |
| 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 Julia Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Julia Johnson
Spouse · 1940 · age 58 · b. ~1882 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Charles-County, Maryland
Open full size
1940 US Federal Census — Charles-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01546-00033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice Carter | 1 | daughter | — | Maryland |
| 2 | Henry Lyles | 38 | Brother-in-law | Laborer | Maryland |
| 3 | Helen Lyles | 11 | Sister-in-law | — | Maryland |
| 4 | Kenneth Lyles | 10 | Brother-in-law | — | Maryland |
| 5 | Norman Lyles | 9 | Brother-in-law | — | Maryland |
| 6 | Agnes Newnam | 1 | Grandchild | — | Maryland |
| 7 | Norbert Lengley | 40 | Head | Auto Mechanic | Maryland |
| 8 | Vennie Lengley | 38 | Wife | — | Maryland |
| 9 | Carlton Lengley | 18 | Son | Laborer | Maryland |
| 10 | Elbert Lengley | 16 | Son | Laborer | Maryland |
| 11 | Leroy Lengley | 14 | Son | — | Maryland |
| 12 | Lois Lengley | 11 | Daughter | — | Maryland |
| 13 | Calvin Lengley | 5 | Son | — | Maryland |
| 14 | Isabella Kendrick | 77 | Mother-in-law | — | Maryland |
| 15 | Mckinley Winters | 43 | Head | Laborer | Maryland |
| 16 | Florence Winters | 40 | Wife | — | Maryland |
| 17 | Florence Winters | 12 | Daughter | — | Maryland |
| 18 | Charles Brooks | 14 | Grandson | — | Maryland |
| 19 | Jean Brooks | 12 | Granddaughter | — | Maryland |
| 20 | Harry Davis | 45 | Head | Farmer | Maryland |
| 21 | Richard Newnam | 48 | Head | Laborer | Maryland |
| 22 | Bertha Newnam | 36 | Wife | — | Maryland |
| 23 | Rudolph Newnam | 20 | Son | Helper | Maryland |
| 24 | Helen Newnam | 17 | Daughter | — | Maryland |
| 25 | Hazel Newnam | 16 | Daughter | Maid | Maryland |
| 26 | Leon Newnam | 12 | Son | — | Maryland |
| 27 | Elaine Newnam | 10 | Daughter | — | Maryland |
| 28 | Bernadine Newnam | 6 | Daughter | — | Maryland |
| 29 | Marie Newnam | 4 | Daughter | — | Maryland |
| 30 | Francis Newnam | 2 | Son | — | Maryland |
| 31 | Josephine Miles | 69 | Head | — | Maryland |
| 32 | Martha Childs | 45 | Friend | — | Maryland |
| 33 | George Johnson | 62 | Head | Farmer | Maryland |
| 34 | Julia Johnson THIS PERSON | 58 | Wife | Laborer | Maryland |
| 35 | Robert Johnson | 38 | Son | Laborer | Maryland |
| 36 | Julia Johnson | 28 | Daughter | Maid | Maryland |
| 37 | Harry Johnson | 25 | Son | Laborer | Maryland |
| 38 | Philip Johnson | 23 | Son | Laborer | Maryland |
| 39 | Martha Johnson | 20 | Daughter | — | Maryland |
| 40 | Agnes Johnson | 8 | 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)