As Monday, Jan. 17, marks the federal holiday of Martin Luther King Jr. Day, many Orange County residents enjoying their day off of work and school often forget that Congress declared the holiday as a day of service in 1994. “Today, we honor the life, the courage, & the sacrifices of Dr. Martin Luther King Jr. His unwavering commitment to justice & civil rights has inspired so many & his moral leadership continues to serve as a beacon for us today,” Orange County Board of Supervisors Chairman Andrew Do wrote on Twitter. “We must continue to honor his legacy. #MLKDay.” Orange County Supervisor Katrina Foley also encouraged residents to volunteer for the holiday. “Today we reflect on & honor the life of civil rights leader Dr. Martin Luther King, Jr. He valued public service,” she wrote on Twitter. “Now more than ever we need citizens willing to stand up and …