Their wedding anniversary is May 3 ( episode # 121 ) .
He is a World War I veteran and is married to Ethel Mae Louise Roberta Potter Mertz ( Vivian Vance ) , and they often jokingly make fun of each other .
each other 's wedding anniversary is May 3 ( episode # 121 ) .
He is a World War I veteran and is married to Ethel Mae Louise Roberta Potter Mertz ( Vivian Vance ) , and they often jokingly make fun of each other .