MJ
Melvin Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Howard-County, Maryland
Our Model Tree links this Melvin Johnson across the 1920, 1930 and 1940 US Censuses in Howard-County, Maryland (XGBoost, ~Confirmed), with identified parents William & Wm — first a son (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Howard-County, Maryland |
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 3 |
| 1935 Residence (County) | Howard |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm work |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 225 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election District 3 |
| Est. Birth Year | ~1910 |
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 Melvin | Age | Birth yr |
|---|---|---|---|---|
| Michael Johnson | Head | — | 62 | ~1878 |
| Melvin Johnson | Son | — | 30 | ~1910 |
| James Johnson | Son | — | 14 | ~1926 |
| Angeline Johnson | Spouse | — | 54 | ~1886 |
Census Appearances
1920
None, Maryland
Son, age 8
None, Maryland · implied b. ~1912 — 17 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, Maryland
Son, age 19
None, Maryland · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Ice Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Howard-County, Maryland
Son, age 30
Howard-County, Maryland · implied b. ~1910 — 4 household members
| Surname | Johnson |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 3 |
| 1935 Residence (County) | Howard |
| Occupation | Laborer |
| Industry | Farm work |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 225 |
| Highest Grade | No 7 |
| 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 Melvin Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Johnson (~0.80 confidence) and father Wm Johnson (~0.92 confidence) and father Michael Johnson (~0.92 confidence) and mother Bertha Johnson (~0.92 confidence) and mother Angeline Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
William Johnson
b. ~None
Source father
● Household
· direct · ~0.8
Father
Wm Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Michael Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Bertha Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Angeline Johnson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Melvin Johnson
Son · 1940 · age 30 · b. ~1910 · Maryland
★ You are viewing this record
Sibling
James Johnson
Sibling · 1940 · age 14
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 — Howard-County, Maryland
Open full size
1940 US Federal Census — Howard-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01552-00237)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Edna Denny | 38 | Wife | — | Maryland |
| 42 | Philip Denny | 14 | Son | Laborer | Maryland |
| 43 | Jessie Day | 15 | Nephew | — | Maryland |
| 44 | Floyd Alexander | 52 | Head | Laborer | W. Virginia |
| 45 | Ada Alexander | 48 | Wife | — | W. Virginia |
| 46 | Paul Alexander | 16 | Son | Laborer | Virginia |
| 47 | Raymond Alexander | 13 | Son | — | Virginia |
| 48 | Rita Alexander | 5 | Daughter | — | Virginia |
| 49 | Clifford Brightwell | 41 | Head | Farmer | Maryland |
| 50 | Lily Brightwell | 37 | Wife | — | Massachusetts |
| 51 | William Brightwell | 10 | Son | — | Maryland |
| 52 | Robert Brightwell | 7 | Son | — | Maryland |
| 53 | Lester Section | 18 | Hired Hand | Laborer | Maryland |
| 54 | Charles Thompson | 74 | Head | Farmer | Maryland |
| 55 | Emma Ward | 73 | Sister | — | Maryland |
| 56 | Dorothy Kirkwood | 23 | House Keeper | House Keeper | Maryland |
| 57 | Neville Arrington | 34 | Head | Carpenter | Maryland |
| 58 | Hazel Arrington | 31 | Wife | — | Maryland |
| 59 | Reginald Arrington | 9 | Son | — | Maryland |
| 60 | Charles D. Arrington | 6 | Son | — | Maryland |
| 61 | James Edward Sayler | 57 | Head | Laborer | Maryland |
| 62 | Wallie Sayler | 47 | Wife | Laborer | Maryland |
| 63 | Michael Johnson | 62 | Head | Laborer | Maryland |
| 64 | Angeline Johnson | 54 | Wife | — | Maryland |
| 65 | Melvin Johnson THIS PERSON | 30 | Son | Laborer | Maryland |
| 66 | James Johnson | 14 | Son | — | Maryland |
| 67 | Ellis Streett | 52 | Head | Laborer | Maryland |
| 68 | Margaret Streett | 49 | Wife | — | Maryland |
| 69 | James Phillips | 75 | Lodger | — | Maryland |
| 70 | Edward Phillips | 65 | Lodger | — | Maryland |
| 71 | Martha Dorsey | 75 | Niece | — | Maryland |
| 72 | Mary Jane Howard | 13 | Lodger | — | Maryland |
| 73 | Walter Nichols | 71 | Head | — | Maryland |
| 74 | Gertrude Nichols | 51 | Wife | — | Maryland |
| 75 | Phillip H. Moore | 24 | Son | Laborer | W. Virginia |
| 76 | Elizabeth Moore | 21 | Daughter | Stenographer | W. Virginia |
| 77 | William Tancrozzi | 45 | Lodger | — | Dist. of Columbia |
| 78 | George Criminal | 11 | Lodger | — | Dist. of Columbia |
| 79 | Maria Kelby | 60 | Head | Dresser | Maryland |
| 80 | Josephine Kelby | 67 | Wife | — | Maryland |
Related Census Records
Pedigree Summary
Melvin + 1 sibling
Gen 1 · 5 parents
~0.9
Max depth 4 (1900–1950 window)
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)