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Louis Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Louis Williams across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Williams |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1927 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Lula Williams | Daughter | — | 7 | ~1933 |
| Frances Williams | Daughter | — | 5 | ~1935 |
| Webster Williams | Head | — | 36 | ~1904 |
| Mary Moore | Other | — | 28 | ~1912 |
| Emma Campbell | Other | — | 27 | ~1913 |
| Leonard Moore | Other | — | 35 | ~1905 |
| Ernest Campbell | Other | — | 28 | ~1912 |
| Bennie Williams | Son | — | 3 | ~1937 |
| Louis Williams | Son | — | 13 | ~1927 |
| Marcella Williams | Son | — | 9 | ~1931 |
| Annie Williams | Spouse | — | 33 | ~1907 |
Census Appearances
1930
Baltimore, Maryland
Other, age 3
Baltimore, Maryland · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Louis |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| 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 13
Baltimore-City-County, Maryland · implied b. ~1927 — 11 household members
| Surname | Williams |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Highest Grade | No 6 |
| 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 Louis Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Williams
Son · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
Frances Williams
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bennie Williams
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Williams
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Williams
Sibling · 1940 · age 7
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-t0627-01527-00371)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Mclane | 50 | Head | Steel Worker | North Carolina |
| 2 | Ella Mclane | 50 | Wife | — | North Carolina |
| 3 | James Jr. Mclane | 31 | Head | Carrier | Maryland |
| 4 | Charlotte Mclane | 29 | Wife | — | Pennsylvania |
| 5 | James Iii Mclane | 1 | Son | — | Maryland |
| 6 | William Goldman | 39 | Head | Stevedore | Virginia |
| 7 | Blanche Goldman | 37 | Wife | — | Virginia |
| 8 | Walter Street | 30 | Head | Janitor | New Jersey |
| 9 | Lucy Street | 19 | Wife | Maid | North Carolina |
| 10 | Lawrence Spriggs | 53 | Head | Janitor | Maryland |
| 11 | Sara Jane Spriggs | 57 | Wife | Policeman | Maryland |
| 12 | James Austin | 51 | Head | Laborer | Maryland |
| 13 | Helen Austin | 35 | Wife | Maid | Virginia |
| 14 | Elmo Stinson | 30 | Head | Night Watchman | North Carolina |
| 15 | Martha Stinson | 21 | Wife | Maid | Virginia |
| 16 | John Harrison | 37 | Head | Longshoreman | Virginia |
| 17 | Georgia Harrison | 37 | Wife | Maid | North Carolina |
| 18 | Kellie Johnson | 55 | Mother-in-law | Paperhanger | Maryland |
| 19 | Jessie Johnson | 11 | Daughter | — | Maryland |
| 20 | Clifton Johnson | 4 | Grandson | — | Maryland |
| 21 | Arthur Johnson | 3 | Grandson | — | Maryland |
| 22 | Joyce Johnson | 1 | Granddaughter | — | Maryland |
| 23 | Franklin Waters | 24 | Lodger | Laborer | Maryland |
| 24 | Chassie Buck | 30 | Sister | Housework | North Carolina |
| 25 | Claudia Buck | 23 | Sister | Maid | North Carolina |
| 26 | Alice Young | 58 | Head | Cook | Virginia |
| 27 | Raymond Young | 29 | Son | — | Maryland |
| 28 | Ruth Young | 26 | Daughter-in-law | — | Virginia |
| 29 | Eleanor Young | 5 | Granddaughter | — | Maryland |
| 30 | Webster Williams | 36 | Head | Barber | Maryland |
| 31 | Annie Williams | 33 | Wife | Keeper | North Carolina |
| 32 | Louis Williams THIS PERSON | 13 | Son | — | Maryland |
| 33 | Marcella Williams | 9 | Son | — | Maryland |
| 34 | Lula Williams | 7 | Daughter | — | Maryland |
| 35 | Frances Williams | 5 | Daughter | — | Maryland |
| 36 | Bennie Williams | 3 | Son | — | Maryland |
| 37 | Leonard Moore | 35 | Lodger | Laborer | Virginia |
| 38 | Mary Moore | 28 | Lodger-wife | — | Virginia |
| 39 | Ernest Campbell | 28 | Lodger | Chauffeur | Georgia |
| 40 | Emma Campbell | 27 | Lodger-wife | — | Georgia |
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)