Walker was among the first to introduce an African-American character into his strip as a regular character, Lt. Fuzz.* And while Gen. Halftrack's ogling of Miss Buxley was insensitive, to say the least, Mr. Walker had the General attend sensitivity training.
Rumors say that the strip will carry on, but Mr. Walker, we'll miss you. Thank you for your contributions to the art of cartooning!
*The first was Charles Schulz, who brought in Franklin as a recurring character.