During 1905, "Colts" was still more common, as Selee preferred that name. But Selee retired due to ill health in mid-season 1905, and Frank Chance was elevated to the managing job. With new management and an emerging dynasty, by 1906 the old "Colts" was largely passé and "Cubs" was the primary nickname. Among various short-lived and little-remembered nicknames laid on the team by the media around 1906, perhaps the funniest was "Murphy's Spuds" or just "Spuds", a reference to Irish-American team owner Charles Murphy, and the stereotype connecting Irish people with potatoes (Irish potatoes were colloquially called "Murphy spuds" or just "Murphys"). By the time the Chicago National Leaguers played their cross-town World Series with the White Sox in 1906, the "Chicago Cubs" nickname was well established. An editorial cartoon after the Series showed a cabin with an unknown figure inside, with only his white socks visible, up on a footrest, with the skin of a bear nailed to the wall outside, and six more white socks hanging on a clothesline (the Sox had beaten the Cubs in six games). (John Devaney and Burt Goldblatt, The World Series: A Complete Pictorial History, Rand McNally, 1975, p. 27). By 1907, the name "Cubs" was appearing on the team's scorecards. (Ahrens) The first uniform acknowledgment of the nickname came in 1908, when a bear cub holding a bat was placed inside the round "C" that was already on the uniform shirt. The 1908 World Series home programs used both the Cubs name and image frequently. The familiar "C" encircling "UBS" first appeared the following year, on the road shirts. With this official acknowledgment, the old nickname of "Colts" was gone for good. Either a bear cub symbol or the word "CUBS" has appeared on home and/or road shirts ever since then. (Okkonen) Despite the best efforts of the MLB Promotion Corporation, which began in the late 1960s, the Cubs did not trademark this iconic circle-C-UBS logo (which has been a steady fixture on uniforms and publications since 1937) until the late 1970s. The nickname "Cubbies", a diminutive of something already small or young, gained favor in large part due to Harry Caray's famous rendering of "Take Me Out to the Ball Game". Instead of drawing out the single-syllable "Cubs" into two syllables in place of "home team", Caray used "Cubbies" to make the line flow better. The Chicago Bears of the National