JW
John Watkins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Watkins across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents John & Maggie — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Watkins |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Industrial Industry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Mechanic |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Maggie Watkins | Head | — | 49 | ~1891 |
| John Watkins | Son | — | 50 | ~1890 |
| John Watkins | Son | — | 25 | ~1915 |
Census Appearances
1920
Baltimore, Maryland
Son, age
Baltimore, Maryland · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watkins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watkins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| 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-City-County, Maryland
Son, age 25
Baltimore-City-County, Maryland · implied b. ~1915 — 3 household members
| Surname | Watkins |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Occupation | Mechanic |
| Industry | Industrial Industry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 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 John Watkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Watkins (~0.92 confidence) and mother Maggie Watkins (~0.92 confidence) and mother Alice Watkins (~0.92 confidence) and father Harry Watkins (~0.92 confidence) and mother Ida Watkins (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Watkins
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Maggie Watkins
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Alice Watkins
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Harry Watkins
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Ida Watkins
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Watkins
Son · 1940 · age 25 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
John Watkins
Sibling · 1940 · age 50
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-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-t0627-01526-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jessica Jarrett | 50 | Head | Automobile Salesman | Maryland |
| 42 | Louise Jarrett | 49 | Wife | Salesgirl | Maryland |
| 43 | Dorothy Jarrett | 14 | Daughter | — | Maryland |
| 44 | Maggie Watkins | 49 | Head | — | Maryland |
| 45 | John C. Watkins | 50 | Son | — | Virginia |
| 46 | John A. Watkins THIS PERSON | 25 | Son | Mechanic | Maryland |
| 47 | William H. Ruffin | 55 | Head | Machinist | Maryland |
| 48 | Blanche Ruffin | 49 | Wife | Dressmaker | Maryland |
| 49 | Joseph Ruffin | 12 | Son | — | Maryland |
| 50 | Howard Singleton | 41 | Head | Traffic Officer | Maryland |
| 51 | Blanche E. Singleton | 41 | Wife | — | Maryland |
| 52 | Nelson Singleton | 19 | Son | Stock Boy | Maryland |
| 53 | Dorothy Singleton | 19 | Daughter | Clerk | Maryland |
| 54 | Howard Singleton | 15 | Son | Engraver | Maryland |
| 55 | Music Singleton | 13 | Daughter | — | Maryland |
| 56 | Harriet Singleton | 11 | Daughter | — | Maryland |
| 57 | Anna Gunderman | 28 | Head | Time Keeper | Maryland |
| 58 | Ida Gunderman | 50 | Mother | — | Maryland |
| 59 | Irene Gunderman | 50 | Sister | — | Maryland |
| 60 | John Byers | 51 | Head | Repairman | Maryland |
| 61 | Myrtle Byers | 48 | Wife | — | Maryland |
| 62 | Clayton Byers | 20 | Son | — | Pennsylvania |
| 63 | Joseph Rogers | 34 | Head | Lamp Lighter | Maryland |
| 64 | Amelia Rogers | 30 | Wife | — | Maryland |
| 65 | Joseph Rogers | 9 | Son | — | Maryland |
| 66 | Emil Rogers | 8 | Son | — | Maryland |
| 67 | Edward Rogers | 7 | Son | — | Maryland |
| 68 | Dorothy Rogers | 5 | Daughter | — | Maryland |
| 69 | Muriel Rogers | 3 | Daughter | — | Maryland |
| 70 | Thomas Hartell | 31 | Head | Delivery Clerk | Maryland |
| 71 | Susan Hartell | 32 | Wife | — | Virginia |
| 72 | Margaret Hartell | 7 | Daughter | — | Maryland |
| 73 | Thomas Jr. Hartell | 4 | Son | — | Maryland |
| 74 | William Hartell | 3 | Son | — | Maryland |
| 75 | Elizabeth Hartell | 63 | Mother-in-law | — | Germany |
| 76 | John James | 26 | Head | Delivery Clerk | Maryland |
| 77 | Frederick James | 31 | Brother-in-law | Salesman | Maryland |
| 78 | Margaret Frederick | 55 | Head | Bookkeeper | Maryland |
| 79 | Preston Frederick | 20 | Son | — | Maryland |
| 80 | Preston Frederick | 10 | Grandson | — | Maryland |
Pedigree Summary
John + 1 sibling
Gen 1 · 5 parents
~0.92
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)