JL
John Lucas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Lucas across the 1910, 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents John & Frances — first a son (b.~1901), then head of a 7-person household.
Age 29
b. ~1901
Male
Son
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 24 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Collector |
| Industry | Brewery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4250 |
| Radio Set | R |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Collector |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1901 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marie Lucas | Daughter | — | 11 | ~1919 |
| Anna Lucas | Daughter | — | 13 | ~1917 |
| William Lucas | Head | — | 41 | ~1889 |
| William Lucas | Son | — | 14 | ~1916 |
| John Lucas | Son | — | 29 | ~1901 |
| Anna Lucas | Spouse | — | 36 | ~1894 |
| Gladys Lucas | Spouse | — | 25 | ~1905 |
Census Appearances
1910
Baltimore, Maryland
Son, age 10
Baltimore, Maryland · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
X, Maryland
Son, age 21
X, Maryland · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Clerk |
| Industry | Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 29
Baltimore, Maryland · implied b. ~1901 — 7 household members
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 24 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Collector |
| Industry | Brewery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4250 |
| Radio Set | R |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 39
Baltimore-City-County, Maryland · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucke |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Occupation | Bartender |
| Industry | Private Tavern |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 710 |
| Highest Grade | H 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 John Lucas across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father John Lucas (~0.92 confidence) and mother Frances Lucas (~0.92 confidence) and father William Lucas (~0.92 confidence) and mother Mary Lucas (~0.92 confidence) and mother Martha Lucke (~0.92 confidence) and father William Lucas (~0.60 confidence) and mother Anna Lucas (~0.60 confidence) and mother Gladys Lucas (~0.50 confidence). The pedigree spans 1 generation with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.79
Father
John Lucas
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Frances Lucas
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
William Lucas
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Mary Lucas
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Martha Lucke
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
William Lucas
b. ~1889
Source father
● Household
· direct · ~0.6
Mother
Anna Lucas
b. ~1894
Source mother
● Household
· direct · ~0.6
Mother
Gladys Lucas
b. ~1905
Source mother
● Household
· direct · ~0.5
This person
Anchor record
John Lucas
Son · 1930 · age 29 · b. ~1901 · Maryland
★ You are viewing this record
Sibling
William Lucas
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Lucas
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Lucas
Sibling · 1930 · age 11
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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus866unit:0203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William C Lucas | 41 | Head | Pressman | Maryland |
| 2 | Anna Lucas | 36 | Wife | — | Maryland |
| 3 | William Lucas | 14 | Son | — | Maryland |
| 4 | Anna Lucas | 13 | Daughter | — | Maryland |
| 5 | Marie Lucas | 11 | Daughter | — | Maryland |
| 6 | John Lucas THIS PERSON | 29 | Son | Collector | Maryland |
| 7 | Gladys L Lucas | 25 | Wife | — | Maryland |
| 8 | Holmes P Kahn | 30 | Head | Salesman | Maryland |
| 9 | Emma Kahn | 24 | Wife | Secretary | Maryland |
| 10 | William B Dinsmore | 36 | Head | Salesman | Ohio |
| 11 | Anna M Dinsmore | 29 | Wife | — | Maryland |
| 12 | Robert M Dinsmore | 4 | Son | — | Maryland |
| 13 | George D Vauth | 47 | Head | Clerk | Maryland |
| 14 | Dorothy M Vauth | 47 | Wife | — | Maryland |
| 15 | George F Vauth | 23 | Son | Clerk | Maryland |
| 16 | James E Vauth | 18 | Son | Clerk | Maryland |
| 17 | Mildred L Vauth | 13 | Daughter | — | Maryland |
| 18 | Carl J Trier | 28 | Head | Superintendent | Maryland |
| 19 | Ethel M Trier | 24 | Wife | — | Denmark |
| 20 | Barbara Trier | 3 | Daughter | — | New York |
| 21 | Leonard J Simms | 27 | Head | Fireman | Maryland |
| 22 | Pauline A Simms | 25 | Wife | — | Maryland |
| 23 | Leonard J Simms | 1 | Son | — | Maryland |
| 24 | David Evans | 32 | Head | Painter | Maryland |
| 25 | Edna Evans | 30 | Wife | — | Maryland |
| 26 | Charles L Evans | 7 | Son | — | Maryland |
| 27 | Alice Miller | 45 | Head | — | Maryland |
| 28 | Alice Miller | 17 | Daughter | — | Maryland |
| 29 | James C Panos | 36 | Head | Barber | Greece |
| 30 | Florence E Panos | 37 | Wife | Saleslady | Maryland |
| 31 | Julia R Smith | 18 | Stepdaughter | Operator | Maryland |
| 32 | Edwin L Smith | 16 | Stepson | Messenger Boy | Maryland |
| 33 | Sara R Smith | 15 | Stepdaughter | — | Maryland |
| 34 | Theodore Mengel | 34 | Head | Secretary | Maryland |
| 35 | Lydia Mengel | 28 | Wife | — | Maryland |
| 36 | Theodore E Mengel | 1 | Son | — | Maryland |
| 37 | Arthur Mccrea | 68 | Father-in-law | Sheet Metal | Maryland |
| 38 | Luella Mccrea | 70 | Mother-in-law | — | Pennsylvania |
| 39 | Eugene Mccrea | 27 | Brother-in-law | Clerk | Maryland |
| 40 | William H Gertner | 25 | Head | Auto Repair | Maryland |
| 41 | Marie B Gertner | 25 | Wife | — | Maryland |
| 42 | Lucy J Gertner | 2 | Daughter | — | Maryland |
| 43 | John J Carl | 51 | Head | Mechanic | Maryland |
| 44 | Mary E Carl | 40 | Wife | — | Maryland |
| 45 | William J Carl | 18 | Son | Accountant | Maryland |
| 46 | Dorothy M Carl | 13 | Daughter | — | Maryland |
| 47 | John G Miller | 26 | Head | Estimator | Maryland |
| 48 | Alice M Miller | 23 | Wife | — | Maryland |
| 49 | J Alan Miller | 7 | Son | — | Maryland |
| 50 | D Anne Miller | 5 | Daughter | — | Maryland |
Pedigree Summary
John + 3 siblings
Gen 1 · 8 parents
~0.79
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)