Confederate Heroes Day

Confederate Heroes Day is celebrated every January 19th (General Robert E. Lee’s birthday). This may or may not be the same day as Martin Luther King, Jr. Day, which is celebrated on the third Monday of January.
 
 
State Holidays - Texas State Library
January
19 - Confederate Heroes Day (partial staffing holiday)
House Bill 126, 42nd Legislature Regular Session. Chapter 8. Approved and Effective January 30, 1931 as Robert E. Lee’s Birthday.

Senate Bill 60, 63rd Legislature Regular Session. Chapter 221. Approved June 1, 1973 and Effective August 27, 1973 as Confederate Heroes Day. This bill deleted June 3rd as a holiday for Jefferson Davis’ birthday and combined the two into Confederate Heroes Day.
 
Wikipedia: Confederate Memorial Day
Confederate Memorial Day, also known as Confederate Decoration Day (Tennessee) and Confederate Heroes Day (Texas), is a holiday in parts of the United States. It is recognized by several states of U.S. South as a day to honor those who died fighting for the Confederate States of America during the American Civil War.
(...)
State   Date                     Remarks
Alabama   Fourth Monday in April     The surrender of Confederate General Joseph E. Johnston to Union General William Sherman on April 26, 1865.
Arkansas   January 19               Robert E. Lee’s birthday (state holiday combined with Martin Luther King, Jr.‘s birthday).
(...)
Texas       January 19               Confederate Heroes Day celebrates Robert E. Lee’s Birthday and Jefferson Davis’s Birthday. Confederate Memorial Day is celebrated on April 26th.