WL
William Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Lucas across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 10-person household.
Age 23
b. ~1917
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Lucas |
| Given Name | William M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Laborer |
| Industry | City Highway Department |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 56 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1917 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Lucas | Daughter | — | 13 | ~1927 |
| Lenora Lucas | Daughter | — | 21 | ~1919 |
| Charles Lucas | Head | — | 47 | ~1893 |
| William Lucas | Other | — | 84 | ~1856 |
| Charles Lucas | Son | — | 9 | ~1931 |
| Vincent Lucas | Son | — | 14 | ~1926 |
| William Lucas | Son | — | 23 | ~1917 |
| James Lucas | Son | — | 17 | ~1923 |
| Frank Lucas | Son | — | 16 | ~1924 |
| Lenora Lucas | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Baltimore, Maryland
Son, age 14
Baltimore, Maryland · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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 23
Baltimore-City-County, Maryland · implied b. ~1917 — 10 household members
| Surname | Lucas |
| Given Name | William M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Laborer |
| Industry | City Highway Department |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 56 |
| Highest Grade | 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 William Lucas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Lucas
Son · 1940 · age 23 · b. ~1917 · Maryland
★ You are viewing this record
Sibling
James Lucas
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Lucas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Lucas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lucas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Lucas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lenora Lucas
Sibling · 1940 · age 21
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
39 people indexed on this census page (nara:1940:m-t0627-01520-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Ruckert | 11 | Son | — | Maryland |
| 42 | Donald Ruckert | 7 | Son | — | Maryland |
| 43 | Patsy Ruckert | 5 | Daughter | — | Maryland |
| 44 | Agnes T Lang | 66 | Head | — | Maryland |
| 45 | Naomi Lang | 45 | Daughter | Clerical Clerk | Maryland |
| 46 | Charles W. Lucas | 47 | Head | Laborer | Maryland |
| 47 | Lenora Lucas | 48 | Wife | — | Maryland |
| 48 | William M. Lucas THIS PERSON | 23 | Son | Laborer | Maryland |
| 49 | Lenora Lucas | 21 | Daughter | Waitress | Maryland |
| 50 | James Lucas | 17 | Son | — | Maryland |
| 51 | Frank Lucas | 16 | Son | New Worker | Maryland |
| 52 | Vincent Lucas | 14 | Son | — | Maryland |
| 53 | Mary Lucas | 13 | Daughter | — | Maryland |
| 54 | Charles W Jr Lucas | 9 | Son | — | Maryland |
| 55 | William B Lucas | 84 | Father | — | Maryland |
| 57 | Alla M De Huff | 69 | Head | Saleswoman | Pennsylvania |
| 58 | Eldred T Walford | 35 | Head | Agent | West Virginia |
| 59 | Merna B Walford | 40 | Wife | — | West Virginia |
| 60 | Chung Ham | 48 | Head | Laundry Worker | California |
| 61 | Lee Ham | 47 | Wife | Laundry Worker | China |
| 62 | Kum Ham | 22 | Son | Laundry Worker | China |
| 63 | Alice Ham | 17 | Daughter | — | Maryland |
| 64 | Helen Ham | 15 | Daughter | — | Maryland |
| 65 | Sue Ham | 14 | Daughter | — | Maryland |
| 66 | Ethel Ham | 12 | Daughter | — | Maryland |
| 67 | Mary Ham | 10 | Daughter | — | Maryland |
| 68 | Billy Ham | 8 | Son | — | Maryland |
| 69 | Adelaide Mc Laughlin | 75 | Head | — | Maryland |
| 70 | Irene Mc Laughlin | 45 | Daughter | Teacher | Maryland |
| 71 | Marie Mc Laughlin | 40 | Daughter | Bookkeeper | Maryland |
| 72 | Lucy Mc Laughlin | 38 | Daughter | — | Maryland |
| 73 | Ernest Rye | 67 | Head | — | Maryland |
| 74 | Martha Rye | 66 | Wife | — | Maryland |
| 75 | George W. Dorn | 57 | Head | Proprietor | Maryland |
| 76 | Marie Dorn | 45 | Wife | — | Maryland |
| 77 | Andrew Dorn | 25 | Son | Salesman | Maryland |
| 78 | Hazel Dorn | 20 | Daughter | — | Maryland |
| 79 | Maurice Mullikin | 67 | Head | — | Maryland |
| 80 | Elara Mullikin | 64 | Sister | — | Maryland |
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)