Taliaferro drew both, this time co-operating with writer Bob Karp. He continued to work at the daily strip until October 10, 1968, and at the Sunday page until February 16, 1969. Among other innovations, Taliaferro made several additions to Donald's supporting cast. Bolivar, Donald's pet St. Bernard first appeared in the strip on March 17, 1938, following his animated appearances in Alpine Climbers (July 25, 1936) and More Kittens (December 19, 1936). Donald's cousin Gus Goose made his first appearance on May 9, 1938, in a series of strips that promoted his upcoming debut short Donald's Cousin Gus (1939). Daisy Duck first appeared in the strip on November 4, 1940, following her first proper animated appearance in Mr. Duck Steps Out, first released on June 7, 1940. Donald's paternal grandmother, usually just called Grandma Duck, first appeared in a portrait on August 11, 1940, and in person on September 28, 1943. Taliaferro also reintroduced Donna Duck as a separate character from Daisy. This old flame of Donald rivaled Daisy for his affections between August 7, 1951 and August 18, 1951, before leaving him for another. First treasure hunt Donald had already been familiar to the American reading public through his newspaper comic strip by 1942. Then Disney licensed Western Publishing to create original comic book stories, with Disney characters as their stars. But the first American Donald Duck story originally created for a comic book was created by Studio-employed artists: Donald Duck Finds Pirate Gold, first published in October 1942. The story was written by Bob Karp, who based it on the storyboard of the unproduced Mickey Mouse short Morgan's Ghost by Harry Reeves and Homer Brightman. Karp gave Donald a starring role by removing Mickey and Goofy from the plot while also adding Donald's nephews. Then it was given to Carl Barks and Jack Hannah to illustrate. The story places Donald and his nephews on a treasure hunt for the lost treasure of Henry Morgan, and it manages to combine elements of humor and adventure with dramatic moments and mystery rather well. Though it is one of his early drawings, Barks's attention to detail is already visible. The script asked for drawings of a Harbor and a sailing ship. Barks decided to use issues of National Geographic, which he collected, as reference sources. It was the first Donald story drawn by Barks for a comic book and the first