RUSS WESTOVER --- WEARING SLACKS  With women, everywhere taking to slacks, overalls, halter-alls and similar garb formerly associated only with males and publicity-minded female movie stars, a man offers some advice to the opposite sex about wearing pants. He happens to be an expert on women’s styles, since his famous comic strip character, “Tillie the Toiler,” was one of the original factors in popularizing slacks among working girls. San Antonio Light. Texas, May 19, 1942