1920 U.S. Census, Baltimore City, Maryland
Ward 19, Sheet 8
1525 Fairmount Avenue
Dwelling 120, Family 190
Lucas, William, head, rents home, male, mulatto, 35, married, can read and write, born in Virginia, both parents born in Virginia, speaks English, waiter at hotel, wage worker
Lucas, Martha, wife, female, mulatto, 33, married, can read and write, born in Virginia, both parents born in Virginia, speaks English, no occupation
Lucas, Lillie, daughter, female, mulatto, 16, single, attended school, can read and write, born in Virginia, both parents born in Virginia, speaks English, no occupation
Lucas, Frances, daughter, female, mulatto, 14, single, attended school, can read and write, born in Virginia, both parents born in Virginia, speaks English, no occupation
Lucas, Robert, son, male, mulatto, 11, single, attended school, can read and write, born in Virginia, both parents born in Virginia, speaks English, no occupation
Lucas, Margaret, daughter, female, mulatto, 5, single, attended school, born in Maryland, both parents born in Virginia, no occupation
Augustus, Wayman, cousin, male, mulatto, 23, married, can read and write, born in Maryland, both parents born in Maryland, speaks English, shipping clerk for shoe company, wage worker
Augustus, Mabel, cousin, female, mulatto, 20, married, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation
Augustus, Herbert, cousin, male, mulatto, 11/12, single, born in Maryland, both parents born in Maryland, no occupation
Augustus, A. Susie, cousin, female, mulatto, 40, widowed, can read and write, born in Virginia, both parents born in Virginia, speaks English, domestic for bakery, wage worker
Pettigrew, Ada, cousin, female, mulatto, 22, married, can read and write, born in Maryland, father born in Maryland, mother born in Virginia, speaks English, operator for shirt factory, wage worker

1930 U.S. Census, Baltimore City, Maryland
11th Ward
1104 Madison Avenue, dwelling 11, family 20
Lucas, William, head, rents for $40, owns radio set, male, negro, 45, married, age at first marriage 21, not in school, can read and write, born in Virginia, both parents born in United States, speaks English, janitor for apartment house, wage worker, at work previous day, not a veteran
Lucas, Martha, wife, female, negro, 40, married, age at first marriage 16, not in school, can read and write, born in Virginia, both parents born in Virginia, speaks English, servant for private family, wage worker, at work previous day
Lucas, Robert, son, male, negro, 20, single, not in school, can read and write, born in Virginia, both parents born in Virginia, speaks English, no occupation
Lucas, Margaret, daughter, female, negro, 15, single, in school, can read and write, born in Maryland, both parents born in Virginia, speaks English, no occupation
Butler, Frances, daughter, female, negro, 24, married, age at first marriage 19, not in school, can read and write, born in Virginia, both parents born in Virginia, speaks English, no occupation

On 16 October 1940, Robert Bradley Lucas registered for the World War II draft. He gave his address as 1935 Madison Avenue, Baltimore, Maryland (later struck and changed to 1818 Presstman Street); age 30; born 24 October 1910 in Westmoreland County, Virginia; citizen of U.S.A.; person who will always know your whereabouts William Bradley Lucas, father, of 1818 Presstman Street, Baltimore, Maryland. Employed by War Dept. at Chem. Warfare Service, Edgewoord Arsenal, Edgewood, Harford County, Maryland. Negro, 5’5-1/2” tall, 160 pounds, brown eyes, brown hair, ruddy complexion. [National Archives at St. Louis; St. Louis, Missouri; WWII Draft Registration Cards for Maryland.]

1950 U.S. Census, Baltimore City, Maryland
Enumeration District 4-658, Sheet 9
1520 Retreat Street, not on a farm
Lucas, William B., head, Negro, male, 67, married, born in Virginia, worked 40 hours previous week, janitor for health center, private employer
Lucas, Martha B, wife, Negro, female, 57, married, born in Virginia, engaged in housework, not seeking work
Lucas, Robert B., son, Negro, male, 38, divorced, born in Virginia, worked 40 hours previous week, mail carrier for post office, government worker
Gray, Margret E., daughter, Negro, female, 35, separated, born in Maryland, work code other, seeking work and did not work previous week, laundry marker for laundry, private work
Meads, Ernest M., grandson, Negro, male, 19, never married, born in Maryland, work code other, seeking work and did not work previous week, bakers helper for bakery, private work