Dale MurphyFormer Atlanta Braves standout Dale Murphy, right, will be the keynote speaker at Junior Achievement of Chattanooga's Spirit of Achievement Awards luncheon on Tuesday, March 25. The event will take place from 11:30 a.m. to 1 p.m. at the Chattanooga Convention Center, 1100 Carter St. The awards salute companies that have shown a longtime commitment to Chattanooga and North Georgia students served by JA, an economic education nonprofit that places volunteers from the business community into classrooms in Hamilton, Catoosa, Marion and Walker county schools. This year's honorees are accounting firm Henderson, Hutcherson & McCullough and flour supplier Horizon Milling. The luncheon also will include the presentation of corporate citizenship and volunteer awards. Tickets are $75 per individual, $750 for a table of eight. For purchase information, call 423-892-4488 or email renee@jachatt.org.