He produced seasons in Baltimore, Chicago, Cincinnati, Dayton, Indianapolis, Louisville and New York City.

He staged the first dramatization of Booth Tarkington's bestselling novel Seventeen,[1] presented on Broadway in 1918 starring Gregory Kelly and his future wife, newcomer Ruth Gordon.

[3] Its credits include the first American performance of Alberto Casella's supernatural drama Death Takes a Holiday, adapted by Walter Ferris, in 1929.

[4] In 1930, Walker became a screenwriter in Hollywood,[1] and served as dialogue director on films including Brothers and The Last of the Lone Wolf.

[1] Walker died March 13, 1941, at his home in Beverly Hills, California, following a heart attack.