Maria Tildon, senior vice president of public policy and community affairs for CareFirst BlueCross BlueShield, has been appointed to the board of directors of Chesapeake Employers’ Insurance Co. by Gov. Martin O’Malley. Tildon serves on several nonprofit boards, including Healthcare for the Homeless, the Greater Baltimore Committee, The Hippodrome Foundation, Capital Breast Care Center of Washington, D.C., The Park School of Baltimore and the Hispanic College Fund. Chesapeake Employers’ Insurance Co. is Maryland’s largest writer of workers’ compensation insurance. It is a nonprofit, non-stock, private corporation formerly known as IWIF.