1920 U.S. Census, Baltimore City, Maryland
Ward 25, Enumeration District 416
Enumerated 28 February 1920
Sexton Street
Dwelling 373, Visited 385
Riley, John H., head, owns, free of mortgage, male, white, 59, married, can read and write, born in Maryland, both parents born in Maryland, speaks English, flange turner for railroad shops, wage worker
Riley, Katy, female, white, 55, married can read and write, born in Maryland, both parents born in Germany and spoke German, speaks English, no occupation
Riley, Bertha, daughter, female, white, 21, divorced, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation
Riley, Louis, son, male, white, 20, single, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, boiler maker for boiler works, wage worker
Riley, Helen, daugher, female, white, 18, single, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, packer for tobacco factory, wage worker
Riley, John H., son, male, white, 17, single, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, acetyline [illegible] for shipyard, wage worker
Riley, Mabel, daughter, female, white, 16, single, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation
Kopp, Catherine, granddaughter, female, white, 4-3/12, single, born in Maryland, both parents born in Maryland, no occupation
Kopp, Robert, grandson, male, white, 2-9/12, single, born in Maryland, both parents born in Maryland, no occupation
Kopp, George, grandson, male, white, 1-11/12, single, born in Maryland, both parents born in Maryland, no occupation
Kopp, Dorothy, granddaughter, female, white, 1, single, born in Maryland, both parents born in Maryland, no occupation
Kopp, Charlotte, granddaughter, female, white, 1/12, single, born in Maryland, both parents born in Maryland, no occupation

1930 U.S. Census, Baltimore City, Maryland
8th Ward, Enumeration District 108
1719 Lanvale Street
Ashley, Upton F., head, rents, home value $4500, male, white, 35, married, age at first marriage 24, not in school, can read and write, born in Maryland, both parents born in Virginia, speaks English, painter, wage worker, at work previous day, veteran of the World War
Ashley, Bertha J., wife, female, white, 31, married, age at first marriage 16, not in school, can read and write, born in Maryland, both parents born in Maryland, occupation house maker
Ashley, Catherine, daughter of h[ead of household], female, white, 14, single, in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation
Ashley, Robert, son of h[ead of household], male, white, 13, single, in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation
Williams, Samuel T., boarder, male, white, 74, widowed, age a first marriage 22, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, occupation illegible, wage worker, at work previous day, not a veteran

1940 U.S. Census, Honolulu, Hawaii
Census Tract 37, Enumeration District 2-185
21st Infantry, Schofield Barracks
Enumerated with many other people
Kopp, John R., soldier, male, Caucasian, 23, single, attended school through 8th grade, born in Maryland, not a territorial citizen, employed for pay, private in U.S. Army, wage or salary worker, 30 weeks worked in 1939, has other income sources

On 30 July 1945, John Robert Kopp registered for the World War II draft, giving his address as Box #106, Beltsville, Maryland; telephone Berwyn 771-W-4; age 29, born 29 October 1916; born in Baltimore, Maryland; citizen of USA; person who will always know your address Mrs. Bertha V. Ashlay, mother, of Beltsville, P.G. [county], Maryland; race white; height 5’7-1/2”; weight 142; brown hair; brown eyes; ruddy complexion; no other obvious physical characteristics; discharged. [World War II Draft Registration Cards, Maryland.]