According to the Social Security Death Index, Wilmer Barnes was born 30 June 1906 and died in August 1967, SSN 215-70-8430, issued in Maryland before 1951.

1910 U.S. Census, Baltimore City, Maryland:
1st Ward, Enumeration District 10, page 198A
600 Luzerne Street
Dwelling 306, Household 352
Barnes, Wilmer, head, male, white, 32, married once, married for four years, born in Maryland, both parents born in Maryland, native tongue English, laborer in can factory, wage worker, not at work on April 14th, not out of work previous 12 months, can read and write, rents, lives in house
Barnes, Mina E., wife, female, white, 31, married once, married for four years, born in Maryland, father born in Maryland, mother born in Germany, speaks English, no occupation, can read and write
Barnes, Wilmer F., son, male, white, 3, single, born in Maryland, both parents born in Maryland, no occupation
[N.B. Next door at 602 Luzerne is Minnie’s sister Elizabeth and her family.]

1920 U.S. Census, Baltimore City, Maryland
1st Ward, Enumeration District 11, page 18B
600 Luzerne Street
Dwelling 334, Household 377
Barnes, Wilmer, head, owns radio set, male, white, 43, married, can read and write, born in Maryland, both parents born in Maryland, speaks English, occupation presser in enamel works, wage worker
Barnes, Minna, wife, female, white, 41, married, can read and write, born in Maryland, both parents born in Germany and spoke German, speaks English, no occupation
Barnes, Wilmer Fred, son, male, white, 13, single, in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, no occupation

1930 U.S. Census, Baltimore City, Maryland
3rd Ward, Enumeration District 4-15, Sheet 17B
600 Luzerne Avenue
Barnes, Wilmur, head, rents for $20, male, white, 52, age at first marriage 27, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, press-hand in can-factory, wage worker, at work previous day, not a veteran
Barnes, Mina C, wife, female, white, 51, married, age at first marriage 26, not in school, can read and write, born in Maryland, both parents born in Germany, speaks English, no occupation
Barnes, Wilmur F, son, male, white, 23, single, not in school, can read and write, born in Maryland, both parents born in Maryland, speaks English, clerk in insurance trade, wage worker, at work previous day

1940 U.S. Census, Baltimore City, Maryland
Ward 27, Sheet 9B
4913 Catalpha Avenue
Household 190, owned, value of home $5,000, not a farm
Maisch, Henre J., head, male, white 67, married, not in school, studied through three levels of high school (H-3), born and living in Maryland, employed for pay, hours worked previous week 45, occupation paint salesman for wholesale paint firm, weeks worked last year 52, has other income
Maisch, Lula A., wife, female, white, 62, married, not in school, attended through grade 8, born and living in Maryland, not employed, housework
Maisch, Ruth H., daughter, female, white, 21, single, not in school, attended through H-4, born and living in Maryland, employed, worked 45 hours previous week, occupation typist for medical school, weeks worked previous year 40, income $600, no other income
Barnes, Wilmer F., son-in-law, male, white, 33, married, not in school, attended through H-2, born and living in Maryland, employed, hours worked previous week 45, occupation claim clerk for [illegible] firm, weeks worked previous year 52, income $1,200, no other income
Barnes, Evelyn E., daughter, female, white, 33, married, not in school, attended through H-3, born and living in Maryland, not privately employed, housework