Question: Who is the maternal grandfather of Adam Coleman Howard?
Answer: Jules Lederer

Margo Howard (née Lederer; born March 15, 1940) is an American writer and former advice columnist. She is the only child of businessman/innovator Jules Lederer and Eppie Lederer (better known as Ann Landers after her long-time advice column " Ask Ann Landers"), the niece of Pauline Phillips, and the cousin of Jeanne Phillips (the latter two both better known as Abigail Van Buren and authors of the advice column "Dear Abby"). Adam Coleman Howard is an American actor, screenwriter and film directo