JW
Joseph Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Joseph Williams across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 12-person household.
Age 15
b. ~1925
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Williams |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1925 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Doris Williams | Daughter | — | 19 | ~1921 |
| Mabel Williams | Daughter | — | 12 | ~1928 |
| Jeanette Williams | Daughter | — | 15 | ~1925 |
| Josephine Williams | Daughter | — | 2 | ~1938 |
| Eloise Williams | Daughter | — | 27 | ~1913 |
| Helen Williams | Daughter | — | 17 | ~1923 |
| Charles Williams | Head | — | 58 | ~1882 |
| Ernest Moore | Other | — | 28 | ~1912 |
| Leonard Williams | Son | — | 13 | ~1927 |
| James Williams | Son | — | 23 | ~1917 |
| Joseph Williams | Son | — | 15 | ~1925 |
| Josephine Williams | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Baltimore, Maryland
Son, age 6
Baltimore, Maryland · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 15
Baltimore-City-County, Maryland · implied b. ~1925 — 12 household members
| Surname | Williams |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | Hs 1 |
| 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 Joseph Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Williams
Son · 1940 · age 15 · b. ~1925 · Maryland
★ You are viewing this record
Sibling
James Williams
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Williams
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Williams
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Williams
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eloise Williams
Sibling · 1940 · age 27
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-t0627-01512-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Tisdale | 12 | Nephew | — | Virginia |
| 2 | Richd. L. Herbert | 2 | Nephew | — | Maryland |
| 3 | Robert Mack | 30 | Lodger | Laborer | S. Carolina |
| 4 | Victoria Allen | 28 | Lodger | Maid | Virginia |
| 5 | Willie Low | 32 | Head | Stevedore | Georgia |
| 6 | Mattie Low | 39 | Wife | — | Virginia |
| 7 | Constance Silva | 48 | Head | Rigger | Portugal |
| 8 | Alice Silva | 45 | Wife | — | Maryland |
| 9 | Mildred Swailes | 25 | Daughter | Maid | Maryland |
| 10 | Joe Swailes | 21 | Step Son | — | Maryland |
| 11 | Samuel Swailes | 19 | Nephew | — | Maryland |
| 12 | Miller Shield | 56 | Head | — | Virginia |
| 13 | Effie Parker | 39 | Daughter | Day Worker | Virginia |
| 14 | Ike Monroe | 35 | Son in law | Chauffeur | N. Carolina |
| 15 | Marie Monroe | 35 | Daughter | — | Virginia |
| 16 | Harrie Watson | 27 | Daughter | — | Virginia |
| 17 | Charles Williams | 58 | Head | Utility Man | Maryland |
| 18 | Josephine Williams | 50 | Wife | — | Maryland |
| 19 | Eloise Williams | 27 | Daughter | — | Maryland |
| 20 | James Williams | 23 | Son | Unskilled Laborer | Maryland |
| 21 | Jeanette Williams | 15 | Daughter | — | Maryland |
| 22 | Doris Williams | 19 | Daughter | — | Maryland |
| 23 | Josephine M. Williams | 2 | Daughter | — | Maryland |
| 24 | Helen Williams | 17 | Daughter | — | Maryland |
| 25 | Joseph Williams THIS PERSON | 15 | Son | — | Maryland |
| 26 | Leonard Williams | 13 | Son | — | Maryland |
| 27 | Mabel Williams | 12 | Daughter | — | Maryland |
| 28 | Ernest Moore | 28 | Lodger | Unskilled Laborer | Georgia |
| 29 | Lellie Best | 48 | Head | Maid | N. Carolina |
| 30 | Gladys Bowell | 32 | Daughter | Maid | N. Carolina |
| 31 | Ethel Edmondson | 14 | Daughter | — | N. Carolina |
| 32 | Vernon Edmondson | 12 | Son | — | N. Carolina |
| 33 | Deloris Bowell | 9 | Daughter | — | Maryland |
| 34 | Thelma Bowell | 7 | Daughter | — | Maryland |
| 35 | Harry Mcpherson | 42 | Head | Unskilled Laborer | D. C. |
| 36 | Beatrice Mcpherson | 32 | Wife | — | Maryland |
| 37 | Ellen Mcpherson | 10 | Daughter | — | Maryland |
| 38 | Robert Mcpherson | 4 | Son | — | Maryland |
| 39 | Delores Mcpherson | 2 | Daughter | — | Maryland |
| 40 | John Huggins | 36 | Head | Unskilled Laborer | S. Carolina |
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)