Funeral services for Tyra Pierson, 22, Madison Pierson, 8, Wyatt Pierson, 3 and Xavier Pierson, 11 months, will be held Saturday at 10:30 am at the Lake City Union Church.  A private family burial will be held at  a later date.  Visitation will be Friday from 4 to 7 pm at the Lampe Funeral Home in Lake City.