EVENTS Children's Expo '85, an educational family event at the Long Beach Convention Center, is on through today. Telephone (213) 434-4862 for more information . . . The West Arcadia Invitational Band Review, in which 40 high school bands compete in a parade from Santa Anita race track to Camino Real along Baldwin Avenue, takes place Saturday; (818) 446-1575 . . . Birdwalk at Cabrillo National Monument, Saturday; (619) 293-5450. CELEBRATIONS Today is Home Made Bread Day . . . On Nov. 18, 1928, Mickey Mouse made his film debut in "Steamboat Willie" . . . Monday is Linda Evans' birthday. She was born in 1942 . . . Los Angeles Board of Education member Jackie Goldberg was born on the same day in 1944 . . . Los Angeles City Councilman Hal Bernson was born Nov. 19, 1930. . . Tuesday is also Jodie Foster's birthday. She'll be 23 . . . Goldie Hawn, nee Goldie Jean Btudlendgehawn, was born Nov. 21, 1945. ONLY YESTERDAY Thirty years ago this week, "Rebel Without a Cause" was in its second smash week . . . Two other top movies--"The Tender Trap" and "Guys and Dolls"--starred Frank Sinatra . . . Herman Wouk's "Marjorie Morningstar" and Anne Morrow Lindbergh's "Gift From the Sea" topped the Southern California best-seller lists . . . At Frank Sennes' Moulin Rouge nightclub on Sunset Boulevard, dinner, a show and dancing ran $5.50 per person . . . Mandel's was touting $6.98 ballet slippers--"black kid flecked with Decca records"--as perfect with the new toreador pants . . . Ethel Barrymore and Ronald Reagan starred on "General Electric Theater" . . . Johnny Carson guested on "The Jack Benny Show" . . . Robie the Robot, a remote-control toy that looked like the grandfather of Voltron, sold for $5.95. Nov. 19, 1922 "EL CENTRO--With the coming of the ideal weather to Imperial Valley, there is also the annual influx of authors, fictionists, investigators into social stratas and writers of all shades and temperatures, according to those who have watched the comings and goings of these people for several years in the Imperial Valley.